https://talenta.usu.ac.id/jpt/issue/feed Jurnal Pertanian Tropik 2020-05-23T14:00:22+07:00 Benny Hidayat bendayat@gmail.com Open Journal Systems <p align="justify"><span class="" lang="en"><span class="">Tropical Agriculture Journal (JPT) is a peer-reviewed online journal of Agriculture Postgraduate Study Program Universitas Sumatera Utara (USU). Journal is a result of research, or scientific reviews of researchers, students and agricultural institutions, and others related to agricultural studies in the tropical region. Published in Indonesian and English language with 3 volumes/year (April, August, December) in 20 Articles</span></span></p> <p align="justify"><span class="" lang="en"><span class=""><span id="result_box" class="" lang="en">Since Vol. 6, No. 3 of 2019, Jurnal Pertanian Tropik Journal moved to the https://talenta.usu.ac.id/jpt/ page facilitated by Talenta Publisher, University of Sumatra Utara, Medan, in order to improve the governance of scientific publications in the Open Journal System (OJS ) </span></span></span><span class="" lang="en"><span class="">ISSN (Print/ Online): 2356-4725/ 2655-7576</span></span></p> <p align="justify"><span class="" lang="en"><span class="">The journal of tropical agriculture has been accredited by the Ministry of Technology Research and Higher Education No. 21 / E / KPT / 2018</span></span></p> <p align="justify"> </p> https://talenta.usu.ac.id/jpt/article/view/3679 Effect of Different Doses and Sources of Potassium Fertilizer on Growth Rate and Time of Bulb Formation of Garlic (Allium sativum L.) 2020-04-12T08:43:54+07:00 Devy Octaviany devyoctaviany25@gmail.com Karno devyoctaviany25@gmail.com Eny Fuskhah devyoctaviany25@gmail.com <p><em>The purpose of this research was to assess the effect of different potassium doses and fertilizer sources on growth rate and time of bulb formation of garlic (Allium sativum L.). The research was conducted in April to Agustus 2019 in Sidomukti Village, Bandungan District, Semarang Regency and at Ecology and Crop Production Laboratory, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang. The research used a factorial randomized block design with three groups. The first factor was the dose of potassium fertilizer which consisted of a dose of 60 kg K<sub>2</sub>O/ha, 120 kg K<sub>2</sub>O/ha, 180 kg K<sub>2</sub>O/ha, and 240 kg K<sub>2</sub>O/ha. The second factor was the source of potassium fertilizer which consisted of KCl, ZK, and KNO<sub>3</sub>. Parameters that collect were time of bulb formation, growth rate, relative growth rate, and potassium absorption of bulb. The data obtained were analyzed by analysis of variance and obtained further by the Duncan test (Duncan's Multiple Range Test) at a significance level of 5%. The results showed that the application of ZK and KNO<sub>3</sub> fertilizers at 240 kg K<sub>2</sub>O/ha had been able to increase the growth rate and the relative growth rate. The higher dose of fertilizer was increasing of potassium absorption of the bulb and made time of bulb formation getting slower.</em></p> <p> </p> <p><strong>References</strong></p> <p>Ahmed, M. E., El-Kader, N. I. A. &amp; Derbala, A.A.E. (2009). Effect of Irrigation Frequency and Potassium Source on the Productivity, Quality, and Storability of Garlic. <em>Australian Journal Of Basic and Applied Sciences</em>, 3(4), 4490–4497.</p> <p>Alfian, D. F., Nelvia &amp; Yetti, H. (2015). The Effect of Potassium Fertilizer and Compost Mixture of Oil Palm Empty Bunches with Boiler Ash on Growth and Yield of Onion (<em>Allium ascalonicum</em> L.). <em>Jurnal Agroekoteknologi</em>, 5(2), 1-6.</p> <p>Amiroh, A. (2017). Pengaplikasian dosis pupuk bokashi dan KNO<sub>3</sub> terhadap pertumbuhan dan hasil tanaman melon (<em>Cucumis melo</em> L.). <em>Jurnal Saintis</em>, 9(1), 25 - 36.</p> <p>Arisha, H. M. E.,. Ibraheim, S. K. A &amp; El-Sarkassy, N. M. (2017). Response of garlic (<em>Allium sativum</em> L.) yield, volatile oil, and nitrate content to foliar and soil application of potassium fertilizer under sandy soil conditions. <em>Middle East Journal of Applied Sciences</em>, 7(1), 44-56.</p> <p>Aslamiah, I. D., dan Sularno. (2017). Response of growth and production of peanut plants of the addition of organic fertilizer concentration and reduction of an organic fertilizer dosage. Prodising Seminas Nasional Fakultas Pertanian UMJ.</p> <p>BPS. (2018). Statistik Indonesia. Badan Pusat Statistik Republik Indonesia, Jakarta.</p> <p>Gunadi, N. (2009). Kalium sulfat dan kalium klorida sebagai sumber pupuk kalium pada tanaman bawang merah. <em>Jurnal Hortikultura</em>, 19(2),174-185.</p> <p>Hickey, M. (2012). Growing Garlic in NSW Second Edition. Primefact 259. Department of Primary Industries. NSW Government. Australia.</p> <p>Hilal, M.H., Selim, A.M. &amp; El-Neklawy, A.S. (1992). Enhancing and retarding effect of combined sulfur and fertilizer applications on crop production in different soils. In Proceedings Middle East Sulphur Symposium 12-16 February, Cairo, Egypt.</p> <p>Marschner, P.( 2012). Mineral Nutrition of Higher Plants Third Edition. Elsevier Ltd. Oxford.</p> <p>Nainwal, R. C., Sigh, D., Katiyar, R. S., Sharma, I &amp; Tewari, S. K. (2015). The response of garlic to integrated nutrient management practices in a sodic soil of Uttar Pradesh, India. <em>Journal of Spices and Aromatic Crops</em>, 24(1), 33-36.</p> <p>Putra, A. A. G. (2013). Kajian aplikasi dosis pupuk ZA dan kalium pada tanaman bawang putih (<em>Allium sativum</em> L.). <em>Jurnal Ganec Swara</em>, 7(2), 10–18.</p> <p>Setiawati, W., Murtiningsih, R., Sopha, G. A &amp; Handayani, T. (2007). Petunjuk Teknis Budidaya Tanaman Sayuran. Balai Penelitian Tanaman Sayuran.</p> <p>Shafeek, M. R., Nagwa, M. H., Singer, S. M., &amp; El-Greadly, N. H. (2013). Effect of potassium fertilizer and foliar spraying with Ethereal on plant development, yield, and bulb quality of onion plants (Allium cepa L). <em>Journal of Applied Sciences Research</em>, 9(2), 1140-1146.</p> <p>Sholihin, Y., Suminar, E., Rizky, W.H. &amp; Pitaloka, G.G. (2016). Meristem explants growth of garlic (<em>Allium sativum</em> L.) Cv. tawangmangu on various compositions of kinetin and ga3 in vitro. <em>Jurnal Kultivasi</em>, 15(3), 172–179.</p> <p>Sulichantini, E. D. (2016). Effect of plant growth regulator Concentration Against Regeneration Garlic (<em>Allium sativum</em> L) In the Tissue Culture. <em>Jurnal Agrifor</em>, 15(1), 29–38.</p> <p>Suminarti, N.E. (2010). The Effects of N and K Fertilization on the Growth and Yield of Taro on Dry Land. <em>Akta Agrosia</em>, 13(1), 1–7.</p> <p>Uke, K. H. Y., Barus, H &amp; Madauna, I. W. (2015). Effect of Tuber Sizes and Potassium Dosages on Growth and Production of Shallots var. Lembah Palu. <em>Jurnal Agrotekbis</em>, 3(6), 655 - 661.</p> <p>Utomo, P.S &amp; Suprianto, A. (2019). Respon pertumbuhan dan produksi tanaman bawang merah (<em>Allium ascalonicum</em> L.) varietas thailand terhadap perlakuan dosis pupuk kusuma bioplus dan KNO<sub>3</sub> putih. <em>Jurnal Ilmiah Hijau Cendekia</em>, 4(1), 28–34.</p> <p>Wu, C., Wang, M., Cheng, Z &amp; Meng, H. (2016). The response of garlic (<em>Allium sativum</em> L.) bolting and bulbing to temperature and photoperiod treatments. <em>Biol Open</em>, 5(4), 507-518.</p> 2020-04-04T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3770 Application of Compost Leaves of Sengon Fertilizer (Paraserianthes Falcataria L.) as Substitution of Inorganic Fertilizer on The Growth and Production of Two Varieties of Soybean (Glycine Max L.) 2020-04-12T08:58:46+07:00 Fahmi Juwono Fahmij97@gmail.com Didik Wisnu Widjajanto, fahmij97@gmail.com Sutarno fahmij97@gmail.com <p><em>ABSTRACT</em></p> <p><em>This study was aimed to examine the effect of the substitution of compost leaves of sengon (Paraserianthes falcataria L.) on inorganic fertilizer on the growth and production of two varieties of soybean (Glycine max L.). The study was conducted on January to April 2019 at greenhouse, Laboratory of Ecology and Plant Production, Faculty of Animal and Agricultural Science, Diponegoro University. A completely randomized design (CRD) with 5 replications was used throughout the study. The first factor consisted of no compost and an inorganic fertilizer substitution, 25%, 50%, 75%, 100% compost substitution, respectively, and 100% of inorganic fertilizers. The second factor was two soybean varieties, namely detam 3 prida and malica. The parameters observed were number of branches, number of trifoliate leaves, number of pods, number of seeds, seed weight, the 100-seed weight. Data were analyzed using ANOVA and continued with the Duncan's Multiple Range Test at a significant level of 5%. The results showed that the dose of compost substitution affected the parameters of the number of branches, number of pods and number of seeds significantly. Soybean detam 3 prida varieties showed a significant effect on the number of branches and the 100-seed weight, while malika varieties showed a significant effect on the number of pods. Substitution dose of 75% compost (26.19 N/ha) showed the highest results on the parameters of the number of branches, number of pods, number of seeds, weight of seeds and the 100-seed weight, and resulted as the highest yield compared to no substitution on all plant parameters. On the basis of the data found throughout the experiment may be concluded that 75% compost of leaves sengon was the most suitable doses to be applied at the cultivation of soybean especially varieties of detam 3 prida and malica.</em></p> <p><em>Keywords</em><em>: compost, detam, malika, soybean</em></p> <p> </p> <p>REFERENCES</p> <p>Adisarwanto, T. 2005. Kedelai. Penebar Swadaya, Jakarta.</p> <p>Adisarwanto, T. dan R. Wudianto. 2008. Meningkatkan hasil panen kedelai di lahan sawah-kering-pasang surut kedelai. Penebar Swadaya, Jakarta.</p> <p>Badan Penelitian dan Pengembangan Pertanian, 2008. Mutu Kedelai Nasional Lebih Baik dari Kedelai Impor. SiaranPers, Jakarta.</p> <p>Badan Pusat Statistik (BPS). 2015. Produksi Kedelai menurut Provinsi (ton), 1993-2015. <a href="http://www.bps.go.id">http://www.bps.go.id</a>. Accessed November 11, 2019.</p> <p>Badan Pusat Statistik (BPS). 2019. Statistik Daerah Kota Semarang 2019. <a href="http://www.bps.go.id">http://www.bps.go.id</a>. Accessed February 10, 2020.</p> <p>Balai Penelitian Tanaman Aneka Kacang dan Ubi. 2013. Deskripsi Varietas Unggul Aneka Kacang dan Umbi. Balitkabi, Malang.</p> <p>Gabesius, Y. O., L. A. M. Siregar dan Y. Husni. 2012. Respon Pertumbuhan dan Produksi Beberapa Varietas Kedelai (<em>Glycine max</em> L. Merill.) Terhadap Pemberian Pupuk Bokashi. J. Online Agroekoteknologi 31(1): 220-236.</p> <p>Ginting, E., dan R. Yulifianti. 2014. Kualitas dan preferensi industri terhadap kecap dari varietas unggul kedelai hitam. Balai Penelitian Tanaman Aneka Kacang dan Umbi. Prosiding Seminar Hasil Penelitian Tanaman Aneka Kacang dan Umbi. Malang. 452-465.</p> <p>Harsono dan Suryantini. 2011. Kacang Nagara. Balai Informasi Pertanian. Banjarbaru, Kalimantan Selatan 5:1-2.</p> <p>Istarofah., dan Z. Salamah. 2017. Pertumbuhan tanaman sawi hijau (<em>Brassica juncea </em>L.) dengan pemberian kompos berbahan dasar daun paitan (<em>Thitonia diversifolia </em>L.). Bio-Site. 3 (1) : 39 – 46.</p> <p>Kumudini, S., P. Pallikonda, C. Steele. 2007. Photoperiod and E-genes direcly influence the duration of soybean reproductive development. Crop Sci. 47: 1510-1577.</p> <p>Marliah, A., T. Hidayat, dan N. Husna. 2012. Pengaruh varietas dan jarak tanam terhadap pertumbuhan kedelai (<em>Glycine max </em>(L). Merrill.) J. Agrista 16(1): 22-28.</p> <p>Mejaya, I. M., A. Krisnawati, H. Kuswantoro. 2010. Identifikasi plasma nutfah kedelai berumur genjah dan berdaya hasil tinggi. Bul. Plasma Nutfah 16: 113-117.</p> <p>Musnawar, E. I. 2005. Pupuk Organik Padat. Penebar Swadaya, Jakarta.</p> <p>Muzammil, D., Rusmawan., Asmarhansyah. 2010. Pengaruh Dosis Nitrogen Terhadap Pertumbuhan Dan Produksi Kedelai Di Lahan Bekas Tambang Timah Bangka Tengah, Kepulauan Bangka Belitung. Balai Pengkajian Teknologi Pertanian Kepulauan Bangka Belitung.</p> <p>Novizan. 2007. Petunjuk Pempukan yang Efektif. AgroMedia Pustaka, Jakarta.</p> <p>Pandiangan, D.N., dan A. Rasyad. 2017. Komponen hasil dan mutu biji beberapa varietas tanaman kedelai (<em>Glycine max </em>(L). Merrill.) yang ditanam pada empat waktu aplikasi pupuk nitrogen. JOM Faperta 4(2): 1-14.</p> <p>Sarawa., A. A. Anas, dan Asrida. 2014. Pola distribusi fotosintat pada fase vegetatif beberapa varietas kedelai pada tanah masam di Sulawesi tenggara. J. Agroteknos 4(1): 50-54.</p> <p>Widiyanto, A. dan A. Sudomo. 2014. Pengaruh pemberian pangkasan sengon terhadap pertumbuhan sengon dan produksi kacang tanah dalam sistem agroforestry. J. Penelitian Agroforestry, 2(1): 1–12.</p> 2020-04-04T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3817 Food Crop Land Use Planning in Banggai Regency 2020-04-12T08:45:47+07:00 Hidayat Katili hidayat.katili11@gmail.com <p><em>Land used to plan to be implemented by considering the appropriateness of existing commodity land needs to be managed to provide information about the appropriateness of specific commodity lands for increasing income and regional development. so this research aims to find out what crop commodities are superior and the carrying capacity of land towards food crop agriculture and to direct the allocation of food crop agricultural land in Banggai Regency. The data analysis used the economic approach of the landfill is an analysis of Localization, Specialization, Basis for determination Leading commodities, Land Suitability analysis for land resource potential analysis. The results showed that localization of eight food commodities that spread throughout the study area while the special or typical food crops namely field rice, corn, and cassava as well as bases in this region, namely, field rice and corn 15 districts (65.2%), cassava 13 </em><em>districts</em><em> (56.5%). Furthermore, based on the calculation of the carrying capacity of paddy, peanuts and green beans that experienced a "deficit", corn, soybeans, cassava, and sweet potatoes experienced a "surplus" and land suitability ie quite suitable (S2) and marginal appropriate (S3). Then the directions for allocation of paddy rice directed to 4 sub-district (West Toili, Moilong, Batui, Masama); rice field to 4 sub-district (Batui, Pagimana, Bualemo, and Lamala); corn in the 3 sub-district (Nuhon, Simpang Raya and Pagimana); peanut in the 3 sub-district (West Toili, Bunta and North Balantak); kedelei directed (Bualemo District sub-district); cassava is directed towards the sub-district (Bunta, Nuhon and Bualemo); and sweet potatoes in sub-districts (Nuhon, Simpang Raya and Lamala).</em></p> 2020-04-04T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3821 Survey and Mapping of P Nutrient Status on Paddy Land in Aek Simare Irrigation Area, Laguboti District, Toba Samosir Regency, Northern of Sumatera, Indonesia 2020-04-12T08:46:46+07:00 Kemala Sari utsmanbinaffan125@gmail.com Supriadi supriadi@usu.ac.id Ameilia Zuliyanti Siregar amelia@usu.ac.id Muchtar Josua Sibarani amelia@usu.ac.id <p style="text-align: justify;"><em>The research aims to a mapping of nutrient status available phosphate and total phosphate in the Aek Simare Irrigation Area Laguboti District Toba Samosir Regency. This research was conducted at the Testing Laboratory of Agricultural Technology Research Center in North Sumatera Province. Which began in Mey to June 2019. The method used is the Free Grid Survey detailed level survey and analysis of nutrient data available phosphate by Bray I method, total phosphate by acid destruction method, and then interpret to the map nutrient status. The result of research showing that status available phosphate classified by 3 statuses such as medium (3,99 ha), high (44,26 ha), and very high (71,75 ha). Total phosphate classified in 4 nutrient status such as low (0,004 ha), medium (67,37 ha), high (45,316 ha) and very high (7,31 ha). Available phosphate and total phosphate are very related to increasing rice production in the Aek Simare Irrigation Area Laguboti District Toba Samosir Regency, Northern of Sumatra, Indonesia</em></p> <p style="text-align: justify;"> </p> <p> REFERENCES</p> <p>BPS Toba Samosir. 2018. Laguboti Subdistrict in Figures 2018. Central Bureau of Statistics of Toba Samosir Regency.</p> <p>De Datta, S.K., Buresh, R.J., Mamaril, C.P. 1990. Increasing Nutrient Use Efficiency in Rice with Changing Needs. Kluwer Academic Publishers. Netherland.</p> <p>Center for Soil and Agro-Climate Research (PUSLITANAK). 1983. Assessment Criteria of Soil Chemical Properties. Center for Soil and Agro-climate Research. Bogor</p> <p>Agriculture Department. 2007. References Determination of Fertilizer Recommendations N, P, and K on Specific Rice Fields Location. As an Appendix of Permentan Number40 / Permentan / OT.140 / 04/2007.</p> <p>Sanchez, P. A. 1993. Nature and Tropical Management 2. Translation of Amir Hamzah. ITB. Bandung.</p> <p>Agricultural Land Resources. Bogor, 30 November - 1 December 2010.</p> <p>Husnain. 2010. Loss of Nutrients Due to Burning Rice Straw and Potential of Environmental Pollution. Soil Research Institute. Published Paper at the Proceedings of the National Seminar.</p> <p>Soil Research Institute. Published Paper at the Proceedings of the National Seminar Agricultural Land Resources. Bogor, 30 November - 1 December 2010.</p> 2020-04-04T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3805 Revenue Performance of Sweet Corn (Pioneers) and Hybrid Corn (Bisi-2) Farmers in Pukdale Village, East Kupang District, Kupang Regency 2020-04-13T14:55:08+07:00 cheisya tanaem alexanderwedo07@gmail.com Maria Bano maria.bano@ymail.com Charles Kapioru maria.bano@ymail.com <p>Limited land owned by farmers which in the same land farmers grow 2 types of maize with different time, namely sweet corn and hybrid corn within 1 year. In the dry season farmers grow hybrid corn and in the rainy season farmers grow sweet corn. Farmers capital for purchase production facilities, especially for the purchase of seeds, fertilizers, and medicines whose prices are getting higher and higher, in addition to the price of corn and hybrid corn which always increases fluctuations, and in terms of cost and time of hybrid corn is higher than sweet corn. This will have an impact on income obtained by farmers. Sampling in this study was carried out by proportional random sampling. Determination of a large sample for the participation of smaller than 10000 can use the Slovin formula (Soekidjo, 2003) with the formula, to answer the objective, it can be used an analysis using total corn farming with total corn farming at one planting season, and to answer the purpose of both methods used using Gross Profit Margin. The results showed that the total income of hybrid maize and sweet corn in the research location was IDR.49.425.000 with an average income per respondent of IDR.852.155 / season and the average income per hectare was IDR. 1.433.855 / season. While the total income of sweet corn farming obtained by respondent farmers is IDR.55.383.000 with an average income per respondent is IDR. 1.065.057 / season and the average income per Ha is IDR. 3.018.147 / season. The percentage of gross profit margin shows that the percentage of sweet corn of 20.63% is received within 2 months and while hybrid corn is 23.20% received within 3 months.</p> <p> </p> <p><strong>REFERENCES</strong></p> <p><strong> </strong></p> <p>Andi B. 2016. Analisis Kelayakan Usahatani</p> <p> Jagung Pada Lahan Kering Di Zona</p> <p> Agroekologi Iiiay Wilayah Timor</p> <p> Barat. Skripsi. Fakultas Pertanian.</p> <p> Universitas Nusa Cendana. Kupang.</p> <p>BPS Kabupaten Kupang.2018.Statistik</p> <p> Pertanian Kabupaten Kupang.</p> <p>BPS NTT.2018. Statistik Pertanian NTT.</p> <p> Badan Pustaka Statistik NTT.</p> <p>Calvin Dkk. 2016. Perbandingan Pendapatan</p> <p> Usahtani Jagung Manis dan Jagung</p> <p> Biasa Di Desa Tontalete Kecamatan</p> <p>Kema Kabupaten Minahasa Utara. Jurnal .</p> <p>Derna, H. 2007. <em>Jagung manis. </em>Diakses di</p> <p> <a href="http://Derna.com/2007/Tanaman">http://Derna.com/2007/Tanaman</a></p> <p> Jagung Manis. On the 7th November 2018.</p> <p>Djamaludin,2003.AnalisisEkonomiUsahata</p> <p> Jagung diDesa Nunmafo</p> <p> KecamatanKupang Timur Kabupaten</p> <p> Kupang. Skripsi Faperta Undana.</p> <p>Kantor Desa Pukdale (2018). Profil Desa</p> <p> Pukdale: Kecamatan Kupang Timur</p> <p> Kabupaten Kupang</p> <p>Palawi, 2002. Analisis Dapatan Usahatani</p> <p> Jagung dan Kacang Tanah dari</p> <p> Program Wanita di Desa Tesabela</p> <p> Kecamatan Kupang Barat. Skripsi</p> <p> Faperta Undana.</p> <p>Poerwanto, R.2008. Departemen Agronomi</p> <p> dan Hortikultura Fakultas Pertanian-</p> <p> IPB. Bogor</p> <p>Soekartawi. 2002. Analisis Usahatani.</p> <p> Jakarta: Penerbit Universitas</p> <p> Indonesia(UI-Press). Warsana.2007. </p> <p>Soekartawi. 1995<strong>. </strong>Ilmu Usaha Tani.UIPress.</p> <p> Jakarta</p> <p>Sugiarto. Dkk. 2007. Ekonomi Mikro.</p> <p> Gramedia Pustaka. Jakarta</p> <p>Ilmu Manajemen Industri. Pengertian Gross</p> <p> Profit Margin dan Rumusnya <a href="https://ilmumanajemenindustri.com/pengertian-gross-profit-margin-marjin-laba-kotor-rumus-gpm/">https://ilmumanajemenindustri.com/pengertian-gross-profit-margin-marjin-laba-kotor-rumus-gpm/</a> accessed on 6 January 2019.</p> <p> </p> 2020-04-05T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3597 Providing azolla and goat manure to increase nutrient N and growth of lowland rice (Oryza sativa L.) 2020-04-12T08:49:45+07:00 Qori Hafizah qorihafizah97@gmail.com Hamidah Hanum qorihafizah97@gmail.com Mohd. Madjid B. Damanik qorihafizah97@gmail.com <p style="text-align: justify;"><em>One of the problems in the paddy field is the lack of availability of nutrient N in paddy soil, it can be overcome by giving azolla and goat manure. The aimis to determine the effect of giving azolla and goat manure for increasing the nutrient N and the growth of rice plants. This research used factorial Random Group Design (RAK) with two treatment factors and three replications. The first factor is azolla dose (0, 7 tons / ha) and the second factor is goat manure dose (0, 5, 10, 15 tons / ha). This research is implemented in the greenhouse of the Faculty of Agriculture, University of North Sumatra, Medan. The result of the study indicated giving of azolla increased C-organic, N-total, N content, and N uptake of plant. Giving goat manure at a dose of 15 tons/ha increased C-organic, number of tillers, canopy dry weight, root dry weight, N content of N uptake. Providing azolla and goat manure 5 tons/ha the highest increased N uptake of plants and growth of lowland rice plants.</em></p> <p style="text-align: justify;"> </p> <p><strong>RE</strong><strong>FERENCES</strong></p> <p><strong> </strong></p> <p>Abu R.L.A., Z. Basri, U. Made. 2017. Response of Growth and Yield of Rice (Oryza sativa L.). Of Nitrogen Needs Using Leaf Color Bgn. Faculty of Agriculture's Agrotechnology Study Program. Tadulako University.</p> <p>BPS North Sumatra. 2018. Harvested Area and Rice Production in North Sumatra.</p> <p>BPPP. 2006. Organic fertilizers and biological fertilizers. Center for Research and Development of Agricultural Land Resources. West Java.</p> <p>Handayani, M. 2011. Utilization of Goat Manure and Rice Husk Ash to Reduce the Use of Urea and KCl Fertilizers and Their Effects on the Growth of Rice Plants and the Chemical Properties of Paddy Soils. Faculty of Agriculture, University of North Sumatra. Field.</p> <p>Nurmayulis, U. P, F. Dewi, Y. Hasnan, and C. Ania.2011. The Response of Nitrogen and Azolla to Mira I Varieties Rice Plant Growth with SRI Method. Scientific Journal of Isotope and Radiation Applications .ISSN 1907-0322.</p> <p>Rauf, A. W., Syamsuddin., S. R. Sihombing. 2000. Role of NPK Fertilizers in Rice Plants. Agriculture department. Agricultural Research and Development Agency. West Koya Agricultural Technology Study Workshop. Irian Jaya.</p> <p>Setiawati M. R. 2014. Increased N and P Content of Soil and Paddy Rice Results Due to Application of Azolla and Biotertilizer Azotobacter chroococcum and Pseudomonas cepaceae. Faculty of Agriculture. Padjadjaran University. Bandung.</p> <p>Setyorini, D ,. Sri, R, .and Irsal, L. 2010. Agriculture in Wetland Ecosystems in Reversing the Degradation of Land Resources and Water Degradation. Agricultural Research and Development Agency. Ministry of Agriculture.</p> <p>Suharyanto and J. Rinaldi, 2002. Estimation of the Potential and Economic Value of Manure in Bali. Institute for Agricultural Technology Assessment (BPTP), Bali.</p> <p>Sudjana, B ,. 2014. Use of Azolla for Sustainable Agriculture. Singapore University of Krawang. Bandung. Scientific Journal of Solutions 1 (2) 72-81 April-June 2014.</p> <p>Soedharmono, G.G., S.Y. Tyasmoro and H.T., Sebayang. 2016. The effect of giving azolla fertilizer and N fertilizer on rice (Oryza sativa L.) Inpari rice varieties, Faculty of Agriculture, Brawijaya University, East Java. Journal of crop production 4 (2) 145: 152 March 2016.</p> <p>Syamsiah, J., Hendro., B.S., and Mujiyo. 2016. Potential of Azolla as Substitution of Manure on Organk Rice Cultivation. Soil Science Study Program, Faculty of Agriculture, Sebelas Maret University. Surakarta</p> 2020-04-05T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3756 The Growth and Yield of IPB 3S Rice Variety With NPK and Rice Straw Compost 2020-04-12T14:33:02+07:00 Mihwan Sataral mihwansataral87@gmail.com Marlinda Nangge mihwansataral87@gmail.com Herwin Yatim mihwansataral87@gmail.com <p><em>To minimize the use of inorganic fertilizers is by giving rice straw compost to the soil. The rice straw compost is a potential organic material for lowland rice plants. This study was aimed to determine the effect of the combination of NPK fertilizer and rice straw compost on the growth and yield of IPB 3S rice variety. This research was carried out on farmers' land in Dowiwi village, Simpang Raya sub-district, Banggai district. The study used a factorial randomized block design with two factors. Factor A (NPK) consisting of four levels namely A1 (62.5 kg / ha), A2 (125 kg / ha), A3 (187.5 kg / ha) and A4 ( 250 kg / ha). Factor B of rice straw compost (B) consisting of four levels, namely B1 (1.25 tons / ha), B2 (2.5 tons / ha), B3 (3.75 tons / ha), and B4 (5 tons / Ha). The results showed that rice straw compost can be increased plant height and 1000 grains weight. The interaction of NPK and rice straw compost (NPK 62.5 kg/ha + 5 tons/ha) was able to minimize the use of NPK fertilizer by 75% in panicle length and 1000 grains weight.</em></p> <p> </p> <p><strong>REFERENCES</strong></p> <p>Amrah ML. (2008). Pengaruh manajemen jerami terhadap pertumbuhan dan hasil padi sawah (<em>Oryza</em> <em>sativa</em> L.). Skripsi. Bogor: Institut Pertanian Bogor.</p> <p>Arafah, Sirappa MP. (2013). Kajian penggunaan jerami dan pupuk N, P, dan K pada lahan sawah irigasi. <em>Jurnal Ilmu Tanah dan Lingkungan</em>. 4(1): 15-24</p> <p>Barus Y. (2012). Application of rice straw compost with different bio activators on the Growth and yield of the rice plants. <em>Journal of Tropical Soils</em>. 17(1): 25-29. Doi: 10.5400/jts.2011.17.1.25</p> <p>Boroomand N, Grouh MSH. (2012). Macroelements nutrition (NPK) of medicinal plants. <em>Journal of Medicinal Plants Research</em> 6(12): 2249-2255</p> <p>Diptaningsari D. (2013). Analisis keragaman karakter agronomis dan stabilitas galur harapan padi gogo turunan padi lokal Pulau Buru hasil kutur antera. Disertasi. Bogor: Institut Pertanian Bogor.</p> <p>Hartatik W, Setyorini D. (2008). Validasi rekomendasi pemupukan NPK dan pupuk organik pada padi sawah. hlm 275-283 Dalam : M. Anda, B. Hendro, Irawan, E. Surmaini, Wahyunto, dan E. Husen (eds). Prosiding Seminar Nasional Dialog Sumberdaya Lahan Pertanian. Bogor: Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian.</p> <p>Hartatik W, Widowati LR. (2015). Pengaruh Pupuk Majemuk NPKS dan NPK terhadap Pertumbuhandan Hasil Padi Sawah pada Inceptisol. <em>Jurnal Penelitian Pertanian Tanaman Pangan</em>. 34(3):175-186.</p> <p>Hosseini SM, Aziz HA. (2013). Evaluation of thermochemical pretreatment and continuous thermophilic condition in rice straw composting process enhancement. <em>Bioresource Technology.</em> 133: 240–247. doi: 10.1016/j.biortech.2013.01.098</p> <p>Idawati, Rosnina, Jabal, Sapareng S, Yasmin, Yasin SM. (2017). Penilaian kualitas kompos jerami padi dan peranan biodekomposer dalam pengomposan. <em>Journal TABARO</em>. 1(2): 127-135</p> <p>Juwita Y. (2014). Teknologi Pengolahan, Manfaat, dan Kendala Penggunaan Kompos Jerami Padi.. hlm 769-775. Dalam: S. Herlinda, Suwandi, F.H. Taqwa, Tanbiyaskur, Eko Handayanto, Sarjan, N. Aini, Rajiman, dan Mardhiana (eds). Prosiding Seminar Nasional Lahan Suboptimal. Palembang: Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) UNSRI.</p> <p>Kaya E, (2013). Pengaruh kompos jerami dan pupuk NPK terhadap N-tersedia tanah, serapan-N, pertumbuhan dan hasil padi sawah (<em>Oryza sativa </em>L<em>.</em>). Prosiding FMIPA Universitas Pattimura<em>. </em>Ambon, Hal. 41-47</p> <p>Ma’sum FQA, Kurniasih B, Ambarwati E. (2016). Pertumbuhan dan hasil padi sawah (<em>Oryza</em> <em>sativa</em> L.) pada beberapa takaran kompos jerami dan zeolite. <em>Jurnal Vegetalika</em>. 5(3): 29-40</p> <p>Noviani PI, Slamet S, Citraresmini A. (2018). Kontribusi kompos jerami-Biochar dalam peningkatan P-tersedia, jumlah populasi BPF dan hasil padi sawah. <em>Jurnal Ilmiah Aplikasi Isotop dan Radiasi</em>. 14(1): 47-57</p> <p>Pranata M, Kurniasih B. (2019). Pengaruh pemberian pupuk kompos jerami padi terhadap pertumbuhan dan hasil padi (<em>Oryza sativa</em> L.) pada kondisi salin. <em>Jurnal Vegetalika</em>. 8(2): 95-107.</p> <p>Sabran I, Soge YP, Wahyudi HI. (2015). Pengaruh pupuk kandang ayam bervariasi dosis terhadap pertumbuhan dan hasil tanaman kacang tanah (<em>Arachis hypogeae</em> L.) pada entisol Sidera. <em>Jurnal Agrotekbis</em>. 3(3) : 297-302</p> <p>Sitepu RB, Anas I, Djuniwati S. (2017). Pemanfaatan jerami sebagai pupuk organik untuk meningkatkan pertumbuhan dan produksi padi (<em>Oryza sativa</em>). <em>Buletin Tanah dan Lahan</em>, 1(1): 100-108</p> <p>Surahman M, Budiman C, Aswidinnoor H, Qadir A, Diaguna R. (2017). Optimization of NPK and silica fertilization for seed production of IPB 3S rice varieties in Pinrang, South Sulawesi. <em>International Journal of Agronomy and Agricultural Research</em>. 11(6): 102-107</p> <p>Susanto U, Daradjat AA, Suprihatno B. (2003). Perkembangan pemuliaan padi sawah di Indonesia.<em> Jurnal Litbang Pertanian</em> 22(3) : 125-131</p> 2020-04-05T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3235 Effect of Chitosan and Biovermi Application on the Growth of Cherry Tomatoes (Lycopersicum esculentum Mill, var. Cerasiforme). 2020-04-12T14:34:11+07:00 Sabrina Tengku tdjunita14@yahoo.com Kemala Sari Lubis kemalasari318@yahoo.com Sri Devika Sari kemalasari318@yahoo.com Benny hidayat bendayat@gmail.com <p>Biovermi adalah pupuk hayati dengan menggunakan vermikompos sebagai bahan pembawa.&nbsp; Penelitian ini bertujuan untuk mengetahui dosis kitosan dan biovermi terbaik untuk meningkatkan pertumbuhan tanaman tomat ceri (<em>Lycopersicum esculentum</em> Mill, var. Cerasiforme). Rancangan yang digunakan pada penelitian yaitu rancangan acak kelompok faktorial yang terdiri dari 2 faktor dengan 3 ulangan. Faktor pertama kitosan yang terdiri dari 3 perlakuan yaitu : control (0 ppm); kitosan cangkang kepiting (250 ppm) dan kitosan jamur <em>Syncephalastrum</em> (250 ppm). &nbsp;Faktor kedua dosis biovermi dengan 4 taraf yaitu : 0; 50; 100 dan 150 g tanaman<sup>-1</sup>. Hasil penelitian menunjukkan bahwa pemberian kitosan tidak memberikan pengaruh yang nyata secara statistik terhadap perubahan tinggi tanaman, jumlah daun, diameter batang, bobot kering tajuk, bobot kering akar, serapan N dan populasi mikroba. Pemberian biovermi dengan dosis 150 g tanaman<sup>-1</sup> berpengaruh nyata meningkatkan tinggi tanaman, jumlah daun, diameter batang, bobot kering tajuk, bobot kering akar, serapan N dan populasi mikroba. Interaksi pemberian kombinasi kitosan dan biovermi tidak memberikan pengaruh yang nyata pada tinggi tanaman, jumlah daun, diameter batang, bobot kering tajuk, bobot kering akar, serapan N dan populasi mikroba.</p> 2020-04-06T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3710 Growth and production response of mung bean (Vigna radiata L) by application of mycorriza and Penicillium sp in paddy lands 2020-04-12T14:35:25+07:00 Lubis Nursiani Nursianilubis@gmail.com Rauf Abdul a.raufismail@gmail.com Sabrina T. tdjunita14@yahoo.com <p><strong>ABSTRACT</strong></p> <p><strong> </strong>This study aimed to evaluate the effect of mycorrhiza and <em>Penicillium</em>sp on the growth and production of mung beans in paddy land. The design of this experimental research was a factorial Randomized Block Design (RBD) with 2 factors and 3 replications. The first factor was the dosage of mycorrhiza consisting of 0 g/plant; 5 g/plant; 10 g/plant; and 15g/plant. The second factor was the type of phosphate solubilizing microbes consisting of without<em>Penicillium</em>sp; <em>Penicillium</em>spfrom Mursala island (20 ml/plant); <em>Penicillium</em>sp collection taken from soil biology laboratory of faculty of agriculture USU (20 ml/plant). The results showed that the dosage of Mycorrhiza and <em>Penicillium</em>sp were not significantly affected the height of mung bean plants, however, it significantly affected the population of Penicillium sp. The application of 15 g Mycorrhiza with <em>Penicillium</em>sp from Mursala was the best treatment for the growth of mungbean plants at 4 weeks after planting (42.98 cm) and the interaction of Mycorrhiza15 g/plant and <em>Penicillium</em>spMursala produced the best seeds/plant of 16.76 g/plant.</p> <p> </p> <p><strong>REFERENCES</strong></p> <p><strong> </strong>Adiningsih, S. 2004. Nutrient dynamics in soil and nutrient uptake mechanisms. Soil Research Center. Ministry of Agriculture. Jakarta.</p> <p>Badan Pusat Statistik. 2016. Production of Cassava and Green Beans by Province in 1993-2015. Jakarta.</p> <p>Budiman, A. 2004. Application of Cashing and Arbuscular Mycorrhizal Fungi on Ultisols and the Effects on the Development of Soil Microorganisms and the Result of Semi Corn (<em>Zea mays</em> L.). Thesis of the Faculty of Agriculture. Andalas University. Padang.</p> <p>De datta, S.K. 1990. Principle and Practice of Rice Production. New York.</p> <p>Dobermann, A. and T. Fairhurst. 2000. Rice, Nutrient disorders and nutrient management. IRRI and Potash and PPI/PPIC. Manila, Philipina.</p> <p>Fitriatin, B. M., A. Yuniarti., O. Mulyani., F. S. Fauziah., dan M. D. Tiara. 2009. Effect of Microbial Solvents on Phosphate and Fertilizer P on Available P, Phosphatase Activity, P on Plants and Upland Rice Results on Ultisol. Agriculture Journal20 (3) : 210 – 215.</p> <p>Harahap, F.S. 2009. Pengujian pengolahan tanah konservasi dan inokulasi mikoriza terhadap sifat fisik dan kimia tanah serta produksi beberapa varietas kacang tanah (Arachis hypogaea. L) <em>Universitas Sumatra Utara Medan. Skripsi</em>.</p> <p>Hasanuddin and Bambang. G. M. 2004. Utilization of phosphate and mycorrhizal microbial solvents to repair available phosphorus, soil phosphorus uptake (ultisol) and maize yields (on ultisol). Journal of agricultural sciences Indonesia, 6 (1): 8 – 13.</p> <p>Husin, E.F. 2000. Fungus Arbuskula Mycorrhiza. Andalas University Faculty of Agriculture. Padang.</p> <p>Illmer, P. and F. Schinner. 1992. Solubilization of inorganic phosphate by microorganisms isolated from forest soils. Journal Soil Biology Biochem, 24 (4): 389 – 395.</p> <p>Sastrahidayat, R. 2011. Science of fungi (Mycology). Universitas Brawijaya Press. Malang.</p> <p>Sembiring and Fauzi. 2017. Bacterial and Fungi Phosphate Solubilization Effect to Increase Nutrient Uptake and Potatoes (Solanum tuberosum L.) Production on Andisol Sinabung Area. Journal of Agronomy 16 (3) : 131 – 137.</p> <p>Sitrianingsih. 2010. The Effect of Arbuscular Vesicular Mycorrhiza Inoculation on the Growth of Pandak Pule Seedlings (<em>Rauvolfia</em> <em>verticillata</em> Lour.) Publication Text. Biology Department Faculty of Mathematics and Natural Sciences Sebelas Maret University Surakarta.</p> <p>Suratmin, D. Wakano, D. Badwi. 2017. The use of compost and phosphorus fertilizer on the growth of green bean plants. Journal of Biology Science &amp; Education, 6 (2): 148 – 158.</p> <p>Susanti, R., Afriani, A., Harahap, F.S., Fadhillah, W., Oesman, R. and Walida, H., 2019. Application Micoriza and Baean Varieties by Conservation Tillage for Biological Soil Properties Improvement. <em>Jurnal</em> <em>Pertanian</em> <em>Tropik</em>, 6 : 34-42.</p> <p>Syawal, F., Rauf, A. dan Rahmawaty. 2017. Upaya rehabilitasi tanah sawah terdegradasi dengan menggunakan kompos sampah kota di Desa Serdang Kecamatan Beringin Kabupaten Deli Serdang. Jurnal Pertanian Tropik 4 3 :183-189.</p> <p>Syawal, F., Rauf, A., Rahmawaty, R. dan Hidayat, B. 2017. Pengaruh Pemberian Kompos Sampah Kota Pada Tanah Terdegrdasi Terhadap Produktivitas Tanaman Padi Sawah Di Desa Serdang Kecamatan Beringin Kabupaten Deli Serdang. Dalam <em>Prosiding SEMDI-UNAYA (Seminar Nasional Multi Disiplin Ilmu UNAYA) </em>(Vol. 1, No. 1, pp. 41-51).</p> <p>Wakelin, S.A, V.V.S.R. Gupta, P.R Harvey, and M.H. Ryder. 2007. Commonwealth Scientific and Industrial Organisation (CSIRO) Land and Water, PMB 2, Glend Osmon, SA 5064, Australia.</p> <p>Whitelaw. 2000. Growth promotion of plants inoculated with phosphate solubilizing fungi. Journal Adv. Agron 69 : 99 – 151.</p> <p> </p> 2020-04-06T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3732 Water use efficiency and nutrient uptake of rice under soil water stress condition 2020-04-12T14:36:42+07:00 Endang Purbajanti endang.purbajanti@live.undip.ac.id Kusmiyati F bendayat@gmail.com Eny Fushkah bendayat@gmail.com <p><em>One obstacle that can limit the growth and production of rice is low water availability. Therefore, a comprehensive study of the response of rice plants to drought is very important. The study was conducted in the greenhouse of the Faculty of Animal Husbandry and Agriculture, Diponegoro University, from April to August 2016. The study used a 3 x 3 factorial design with 3 replications. The first factor is three types of rice (Sidenuk, Way Apo Buru, Pepe) and the second factor is water stress treatment (KA &lt;field capacity = enough water, field capacity (KL), water saturation (JA). The observed parameters are protein content, leaf levels rolling (number of leaves rolled), relative water content (RWC), water use efficiency (WUE), N, P, K uptake, rice protein content decreases with increasing water supply. The relative water content of rice plants decreases with increasing stress water that occurs in the limited water supply for the three types of rice Sidenuk rice has the lowest N seed content (2.1%) compared to Way Apo (3.0%) and Pepe (3.1%). The mineral content of P in both biomass and seeds is not really influenced by water stress, as well as K content of seeds.</em></p> <p> </p> <p><strong>REFERENCES</strong></p> <p>Badan Pusat Statistik. 2018. <a href="https://www.bps.go.id/dynamictable/2019/04/15/1608/luas-panen-produksi-dan-produktivitas-padi-menurut-provinsi-2018.html">https://www.bps.go.id/dynamictable/2019/04/15/1608/luas-panen-produksi-dan-produktivitas-padi-menurut-provinsi-2018.html</a></p> <p>Darwesh, R, S,S. 2013. Improving growth of date palm plantlets grown undersalt stress with yeast and amino acids applications Annals of Agricultural Science (2013) 58(2), 247–256<br /><br /></p> <p>Etienne P.I.D, S. Diquelou , M. Prudent, C. Salon., A. Maillard, and A.Ourry. 2018. Macro and Micronutrient Storage in Plants and Their Remobilization When Facing Scarcity: The Case of Drought. Agriculture 2018, 8, 14; 2-17. doi:10.3390/agriculture8010014</p> <p>Farooq, M., S.M.A.Basra, A. Wahid, Z.A.Cheema, M.A.Cheema, A.Khaliq. 2008. The physiological role of exogenously applied glycine betaine in improving drought tolerance of fine grain aromatic rice (Oryza sativa L.).Journal of Agronomy &amp; Crop Science, 194: 325-333.</p> <p>Fitter, A.H.dan R.K.M. Hay. 1991. Fisiologi lingkungan tanaman. Gadjah Mada University Press, Yogyakarta</p> <p>Gholinezhad, E., A.Ayanaband, A. H. Ghorthapeh, G.Noormohamadi, I.Bernousi.2009. Study of the Effect of Drought Stress on Yield, Yield Components, and Harvest Index of Sunflower Hybrid Iroflor at Different Levels of Nitrogen and Plant Population. Not. Bot. Hort. Agrobot. Cluj 37 (2) 2009, 85-94</p> <p>Kivuva, B.M. , S.M. Githiri, G. C. Yencho, J.Sibiya.2015. Screening sweet potato genotypes for tolerance to drought stress. Field Crops Research 171 (2015) 11–22</p> <p>Jaleel CA, Manivannan P, Wahid A, Farooq M, Al-Juburi H J, Somasundaram R, Panneerselvam R. 2009. Drought stress in plants: A review of morphological characteristics and pigment composition. Int J Agric Biol, 11: 100–105.</p> <p>Nazar, R., S. Umar, N.A. Khan, O. Sareer. 2015. Salicylic acid supplementation improves photosynthesis and growth in mustard through changes in proline accumulation and ethylene formation under drought stress. South African Journal of Botany 98 (2015) 84–94.</p> <p>Nio, S.A. dan A.A. Lenak. 2014. Penggulungan daun pada tanaman monokotil saat kekurangan air. Journal Bio Logos, Agustus 2014, Vol.2, No 4: 48-55.</p> <p>Nuryani, S.H.U., Haji,M., Widya, N. Y., 2010. Serapan hara N,P,K pada tanaman padi dengan lama penggunaan pupuk organic pada vertisol Sragen. Jurnal Ilmu Tanah dan Lingkungan vul 10 No 1 : 1-13</p> <p>Oh, M.W., and S. Komatsu. 2015. Characterization of proteins in soybean roots under flooding and drought stresses. Journal of Proteomics. 114 (2015): 161-181.</p> <p>Pandey, V., and A.Shukla.2015.Acclimation and Tolerance Strategies of Rice under Drought Stress. Rice Science, 2015, 22(4): 147-.161.</p> <p>Penny-packer, B. W., K. T. Leath., W. L. Stout, and R. R. Hill. 1990. Technique for stimulating field drought stress in the greenhouse. Agr. J. 82 (5): 951–957.</p> <p>Purbajanti, E.D., F. Kusmiyati, and E. Fuskhah. 2017. Growth, Yield, and Physiological Characters of Three Types of Indonesian Rice Under Limited Water Supply.</p> <p>Asian J. Plant Sci., 16 (2): 101-108, 2017.</p> <p>Shi, G., S. Xia., J. Ye, Y. Huang, C. Liu, Z. Zhang .2015. PEG-simulated drought stress decreases cadmium accumulation in castor bean by altering root morphology. Environmental and Experimental Botany 111 (2015) 127–134.</p> <p>Shao H B, L.Y.Chu, M.A. Shao, C.A.Jaleel, H.M. Mi. 2008. Higher plant antioxidants and redox signaling under environmental stresses. Comp Rend Biol, 331: 433–441.</p> <p>Steel, R.G.D., and J.H. Torrie, 1960. Principles and Procedures of Statistics. McGraw-Hill, New York, USA.</p> <p>Suryanti, S., D. Indradewa, P. Sudira, J. Widada. 2015. Water Use, Water Use Efficiency, and Drought Tolerance of Soybean Cultivars. AGRITECH, Vol. 35, No. 1, February 2015: 114-120.</p> <p>Wu,X. and W. Bao. 2011. Leaf Growth, Gas Exchange and Chlorophyll Fluorescence<br />Parameters in Response to Different Water Deficits in Wheat Cultivars.<em> Plant Prod. Sci. </em>14(3): 254―259 (2011)</p> <p>Zhang, X., X. Chen, Z. Wu, X. Zhang, C. Huang and M. Cao, 2005. A dwarf wheat mutant is associated with increased drought resistance and altered responses to gravity. Afr. J. Biotechnol., 4: 1054-1057.</p> <p>Zou L., X.Sun, Z. Zhan, P. Li, J. Wu, Tian Cai-juan, Qiu Jin-long, Lu Tie-gang (2011) Leaf rolling controlled by the homeodomain leucine zipper class IV gene Roc5 in rice. Plant Physiology 156:1589– 1602</p> 2020-04-06T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3826 Cellulolytic Bacteria Degradation DNA Isolation from Acid Soil Molecularly 2020-04-13T14:27:48+07:00 Samah Eri Erisamah2808@gmail.com Ernita Milda mildaernita@gmail.com <p style="text-align: justify;"><strong>Abstract</strong>Cellulolytic degradation bacteria are microorganisms that are abundant in nature which can break down raw fibers of organic waste into compost. The purpose of this study was to obtain superior cellulolytic bacteria to degrade organic waste into compost and obtain permanent species and strain. The method used is DNA isolation by culturing bacteria with Luria Bertani (LB) media, quality and quantity analysis using DNA electrophoresis isolation technique visualized by electrophoresis technique followed by testing with Polymerase Chain Reaction (PCR) technique. Isolated DNA was amplified using a primer combination designed from the 16S rRNA gene sequence. The primary combinations used are 27F (5 '-AGAGTTTGATCMTGGCTCAG-3') and 1525R (5 '-AAGGAGGTGWTCC-ARCC-3'). Analysis of sequence data is compared with gene sequences that have been deposited into the public database in silico using the BLAST program conducted online on the NCBI website (National Center of Biotechnology Information). The results obtained by visualization of electrophoresis from isolation of DNA 6 isolates of cellulolytic bacteria M = λ DNA 50 ng / µl; 1 = KM25, 2 = SR75, 3 = JM, 4 = U6,5 = G8,6 = K13. DNA concentrations obtained from 6 isolates were quite high, ranging from 34.4 to 69.9 ng / µL. The results of the 6th PCR amplification were 6 isolates namely KM25, SR75, JM, G-8, KM13, AND U-6. In general, the six selected cellulolytic bacterial isolates belong to the genus Bacillus. Phylogenetic analysis using Boostrap 1000 x. The six selected bacterial isolates analyzed separated and formed two main clusters: the first cluster which included <em>Bacillus thuringensis</em> and Bacillus cereus and the Bacillus Subtilis cluster. The conclusion of the 6 isolates sequencing was KM13 (<em>Bacillus thuringensis</em>), G8 (Bacillus cereus), Sr75 (Bacillus cereus), JM (Bacillus subtilis), KM25 (Bacillus subtilis), U6 (Bacillus subtilis).</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;"><strong>REFERENCES</strong></p> <p>Afriani, A., Heviyanti, M. and syawal Harahap, F., 2019. Effectiveness of gliocladium virens in controlling Fusarium oxysporum F. sp. capsici disease on chili plant. <em>Jurnal Pertanian Tropik (Indonesian Tropical Agriculture Journal) accredited by KEMENRISTEK DIKTI No: 21/E/KPT/2018</em>, <em>6</em>(3, Dec), pp.403-411.</p> <p>Ariwibawa, Nugraha 2004. Erodibilitas Tanah Di Kecamatan Jogorogo Kabupaten Ngawi Propinsi Jawa Timur. Skripsi. Surakarta : Fakultas Geografi UMS</p> <p>Feliatra. 2004. Isolasi dan Identifikasi Bakteri Probiotik dari Ikan Kerapu</p> <p> </p> <p>Macan (Ephinephelus fuscogatus) dalam Upaya Efisiensi Pakan Ikan. Jurnal Natur Indonesia. 6 (2): 74-81.</p> <p>Hazar, M., Salim, M., dan Mardiah, E. 2015. Keberadaan <em>Escherichia Coli </em>Resistan Antibiotik Pada Ikan Balang (<em>Pristolepis Fasciata</em>) Di Sungai Batang Arau Jurusan Kimia, Fakultas MIPA, Universitas Andalas Limau Manis, Padang.</p> <p>Hidayat P, Aidawati N, Hidayat SH, Sartiami D. 2008. Tanaman indikator dan teknik RAPDPCR untuk penentuan biotipe Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). Jurnal Hama dan Penyakit Tumbuhan Tropika 8:1–7.</p> <p>Huda, B.I. 2010. Koleksi dan Identifikasi Bakteri Selulolitik dari Kawah Gunung Merapi Berdasarkan Analisis Sekuens Gen Pengkode 16S-rRNA. Skripsi Fakultas Pertanian Unand. 16 Halaman</p> <p>Jamsari. 2007. Bioteknologi Pemula. Prinsip Dasar dan Aplikasi Analisis Molekuler. Unri Press.Halaman 46-48.</p> <p>Reese, E.T., R.G.H. Siu, and H. S. Levinson. 1972. <em>in</em> : W. M. Fogarty (<em>ed</em>). 1983 Microbial Enzymes and Biotechnology. Ap plied Science Publ., London.soil as a potential candidate of organic waste degradation</p> <p>Samah E. dan Misdawati. 2019. Isolation of Cellulose Degradation Bacteria (CDB) from acid soil. Jurnal Tropika USU. Vol.6.No3. ISSN NO: 2356- 4725/p- ISSN : 2655-757. https://talenta.usu.ac.id/jpt.</p> <p> <a href="https://www.cabdirect.org/cabdirect/search/?q=au%3a%22Sambrook%2c+J.%22">Sambrook, J. </a> <a href="https://www.cabdirect.org/cabdirect/search/?q=au%3a%22Fritsch%2c+E.+F.%22">Fritsch, E. F.</a>; <a href="https://www.cabdirect.org/cabdirect/search/?q=au%3a%22Maniatis%2c+T.%22">Maniatis, T.</a> 1989. <a href="https://www.cabdirect.org/cabdirect/search/?q=do%3a%22Molecular+cloning%3a+a+laboratory+manual.%22">Molecular cloning: a laboratory manual.</a> Tex Book No.Ed. 2 pp.xxxviii + 1546 pp</p> <p>Suryanto, Dwi. 2009. Prospek Keanekaragaman Hayati.</p> <p>Tallei, T.E., Rembet, R.E., Pelealu, J.J., Kolondam, B.J. 2016. Sequence Variation and Phylogenetic Analysis of Sansevieria trifasciata (Asparagaceae). Bioscience Research 13(1): 01-07.</p> <p>Trisnawati E, Andesti D, Saleh A. 2013 Pembuatan Kitosan Dari Limbah Cangkang Kepiting Sebagai Bahan Pengawet Buah Duku Dengan Variasi Lama Pengawetan”, Jurnal Teknik Kimia No. 2, Vol. 19,</p> <p>Walida, H., Harahap, F.S., Hasibuan, M. and Yanti, F.F., 2019. Isolasi dan Identifikasi Bakteri Penghasil IAA dan Pelarut Fosfat dari Rhizosfer Tanaman Kelapa Sawit. <em>BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan)</em>, <em>6</em>(1), pp.1-7.</p> <p>Weisberg, S.P. McCann D, Desai M.Rosenbaum M, Leibel RL, Ferrante AW (2003). Obesity is associated with macrophage accumulation in adipose tissue.<em>J Clin. Invest 112</em>, 1796–1808..\</p> <p>Wowrik B, Kerkhof L, Zylstra GJ, Kukor JJ. 2005. Identification of unique type II Polyketide synthase gene is soil. Appl Environ Microbiol. 71(5):2232-2238. doi: 10.1128/ AEM.71.5.2232-2238.2005.</p> <p>Yusuf, S. 2000. Bakteri serasah yang terdapat di hutan gambut ditinjau dari segi daerah tertutup dan terbuka. Skripsi Sarjana Biologi. FMIPA. Universitas Andalas. Padang</p> 2020-04-07T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3243 The Effect Cytokinin Aplication and Kosarmas Fertilizer on Rice Seed Filling Impari Sembilan in Pintupadang. 2020-04-13T14:29:23+07:00 Jumaria Nasution ros.jumaria@gmail.com Romaya Sitha Silitonga ros.jumaria@gmail.com <p> </p> <p><em>Impari Sembilan is one of the superior varieties used in Pintupadang. This seedling is one of the superior varieties produced from an agricultural hall in Indonesia. Rice productivity efforts can be increased by using superior varieties administration of growth regulators. Cytokines application a role in the formation of grains and root during the initial process of grains development, affect the percentage of seed and will affect the yield. kosarmas fertilizer is an organic fertilizer from cow dung, charcoal, candlenut shell and golden snails as organic fertilizer which improves soil physic. The purpose of the study was to evaluate the effect of cytokynins and KOSARMAS fertilizer on wet weight, dry weight, seed filling of Impari rice plants. This study used a completely randomized design with two factors, namely the cytokinin concentration of 0,10,25,50 ppm and Kosarmas liquid fertilizer concentration of 0,20,30,50 ml. Based on the analysis of error variance of 5%. Cytokinin at a concentration of 50 ppm increased the height of Impari rice stalks while cytokinin applied at a concentration of 25 ppm increased, the amount of fresh weight of 100 rice seed, dry weight of sed. A dose of 30 ml kosarmas fertilizer increases the total amount of panicle grain.</em></p> <p><strong>REFERENCES</strong></p> <p><strong> </strong></p> <p>Daie, J.1985.Carbohydrate partitioning and metabolism in crops.Hort.Review,7: 69-108.</p> <p>Gomez, K. A., And Gomez, A. A. 1976. <em>Statistical Procedure For Agriculture Research With Emphasize On Rice</em>. International Rice Research Institue, Los Banos Philipines</p> <p>Mukarim ,A. K. 2005. Peupukan berimbang pada tanaman pangan khusus padi sawah : Seminar Rutin Pulitbang Tanaman Pangan. Bogor. Ookura, T.Wada, M.Sakakakibara, Y.Jeong,K.H.Maruta, I.Kawamaru,Y and Kasamo,K.1994. Indentifacition and characterization of family of gene for the plasma membrane H<sup>+-</sup>ATP ase <em>Oryza sativa</em> L. Plant cell Physiol.,35:1251-1256.</p> <p>Oparka, K.J, and Gates ,. P.J.1981. Transport Of assimilates in the developing caryopsis of rice. Ultrastructure of the pericarp vascular bundle and its connection with the aleurone layer. Planta,151:561-573.</p> <p>Shah, S.H.2006.The response of nigella Sativa L.to foliar application of gibberellic acid and kinetin.Biol.Plant.In Press.</p> <p>Taize and Zeiger. 2002. <em>Plant Physiology Third Edition</em>. Sinauer Association: USA.</p> 2020-04-07T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3573 Effect of Indol Butyric Acid (IBA) on the Growth of Dragon Fruit Cuttings (Hylocereus costaricensis) 2020-04-13T14:30:48+07:00 Siswa Panjang Hernosa fansaidha fansaidha@gmail.com <p>The difficulty of root formation cuttings dragon fruit plants is influenced by several factors; <em>The first </em>disease that often occurs is a rotten stem. This disease usually strikes in early planting dragon fruit, dragon fruit plants often have decay at the base of the stems, there are brown and white fur. The decay caused by excessive soil moisture so it appears that the fungus that causes rot (<em>Sclerotium rolfsii sacc</em><em>). </em>Both the stem to rot can also be caused when the rod directly planted, the sap is still wet rot can give effect to the dragon fruit cuttings. One attempt to increase the percentage growth of cuttings is using Indol Butyric Acid (IBA), which is a type of plant growth regulator that is used to stimulate root formation. The aim of this study was to investigate the effect of indole butyric acid (IBA) on the growth of stem cuttings of red dragon fruit <em>(Hylocereus costaricensis).</em> This research was conducted at the village Sidorukun, District Pangkatan, Labuhan Batu Regency, with a height of ± 39 m asl, from July to September 2016. The research design used in this study is a randomized block design with 5 treatments the concentrations of the hormone IBA consists of A0: 0 ppm, A1: 4000 ppm, A2: 5000 ppm, A3: 6000 ppm, A4: 7000 ppm and 5 replicates so that there are 25 total plot trials. Parameters observed that the percentage of the emergence of shoots, age appeared shoots, shoot length (cm), fresh weight of shoots (g), dry weight of shoots (g), root length (cm), fresh weight of the root (g), the volume of roots (g), root dry weight (g). Data were analyzed using linear models continued with Duncan test. The results obtained showed that the administration of Indole butyric acid (IBA) significantly affected the percentage of observation parameters appear buds, shoots emerging age, number of shoots, root length, fresh weight of root, root volume, and root dry weight. But it did not affect the parameters of observation shoot length, fresh weight of shoots, and buds dry weight. </p> <p>Keywords: dragon fruit plants <em>(Hylocereus costaricensis)</em>, Indole butyric acid (IBA), cuttings, growth.</p> <p> </p> <p><strong>References</strong></p> <p>Anita, 2008. Kajian Media Tanam dan Konsentrasi BAP <em>(Benzyl Amino Purin)</em> Terhadap Pertumbuhan Setek Tanaman Buah Naga Daging Putih <em>(Hylocereus undatys)</em>.Universitas Sebelas Maret.</p> <p>Febriana, S.2009. Pengaruh konsentrasi ZPT dan Panjang Setek terhadap Pembentukan Akar dan Tunas pada Setek Apokad <em>(Persea Americana Mill)</em>. Skripsi Pertanian Bogor. Bogor</p> <p>Hasanah, F. dan Setiari, N. 2007. Pembentukan Akar Pada Stek Batang Nilam (<em>Pogostemon cablin </em>Benth.) Setelah Direndam Iba (Indol Butyric Acid)Pada Konsentrasi Berbeda. Buletin Anatomi dan Fisiologi Vol. 15. No. 2. Hal. 1-6.</p> <p>Kartina, B., Ashar, T., dan Hasan, W. 2013. Karakteristik Pedagang, Sanitasi Pengolahan dan Analisa Kandungan Rhodamin B pada Bumbu Cabai Giling di Pasar Tradisional Kecamatan Medan Baru Tahun 2012. Lingkungan dan Kesehatan Kerja, 1(2): 1-7.</p> <p>Novitasari, B, Meiriani, Haryati 2015. Pertumbuhan Setek Tanaman Buah Naga (<em>Hylocereus costaricensis</em> (Web.) Britton &amp; Rose) dengan Pemberian Kombinasi Indole Butyric Acid (IBA) dan Naphthalene Acetic Acid (NAA). Jurnal Agroekoteknologi, E-ISSN No. 2337- 6. Vol.4. No.1, Desember 2015. (564) :1735 – 1740.</p> <p>Prastowo, N. H., J, M. Roshetko dan G. E. S Manurung 2006. Tehnik Pembibitan dan Perbanyakan Vegetatif Tanaman Jarak pagar ( Jatropha curcas L.) dengna Setek Batang. Pengaruh Panjang dan Diameter Setek. Buletin Agronomi (36) (3) ;255_262).</p> <p>Purwati, MS. 2013. Pertumbuhan Bibit Buah Naga <em>(Hylocerrus costaricensis)</em> Pada Berbagai Ukuran Setek Dan Pemberian Hormon Tanaman Unggul Multiguna Ekslusive. Jurnal Online Agroekoteknologi. 2(5) 2805-3548.</p> <p>Ramadiana, S. 2008. Respon Perumbuhan Setel <em>Sanseveria trifasciata </em>var. laurentii pada pemberian konsentrasi IBA dan asal bahan tanama (skripsi). Lampung; Jurusan Budidaya Pertanian, Universitas Lampung.</p> <p>Ramadiana S, 2008. Respon Pertumbuhan Stek Lidah Mertua<em> (Sansevieria trifasciata var. Lorentii) </em>pada Pemberian Berbagai Konsentrasi IBA dan Asal Bahan Tanam<em>. </em>www.unila.ac.id. Jurnal vol 6.281</p> <p>Rineksane, I A dan Sukarjan, M, 2015. Regenerasi Anggrek Vanda tricolor Pasca Erupsi Merapi Melalui Kultur In Vitro<em>.</em> Seminar Nasional Universitas PGRI Yogyakarta 2015. ISBN 979-602-73690-3-0.</p> <p>Rugayah, Anggalia, Ginting, 2012. Pengaruh Konsentrasi dan Cara Aplikasi IBA (Indole Butiric Acid) terhadap Pertumbuhan Bibit Nanas (<em>Ananas comosus</em> [L] Merr). Asal Tunas Mahkota. Jurnal Agrotropika 17 (1):3-38)</p> <p>Salisbury, F.B. dan Ross, C.V. 1995. Fisiologi Tumbuhan Jilid 3 Bandung: ITB Press.</p> <p>Suryaningrum, R, dkk, 2016. Analisis Pertumbuhan Beberapa Varietas Kedelai pada Perbedaan Intenssitas Cekaman Kekeringan. Agrosains 18(2); 33-37, 2016; ISSN; 1411-5786.</p> <p>Santoso, U dan F. Nursandi 2001. Kultur Jaringan Tanaman. Universitas Muhammadiyah Malang. Press. Malang.</p> <p>Shofiana, A., Rahayu, Y S, Budipramana, L, S, 2013. Pemberian beberapa konsentrasi IBA (<em>Indole Butiryc Acid)</em> Pada Pembentukan Akar Setek Tanaman Buah Naga. Jurnal Lentera Bio Vol. 2 No.1 Januari 2013;101-105. ISSN : 2252-3979</p> <p>Seran. H. T dan Thiresh. A. 2015. Root and Shoot Growth of Dragon Fruit<em> (Hylocereus undatus) </em>Stem Cutting as Influence by indole Butyric Acid. Agricultural and Biological Sciences Journal Vol, 1 No, 2 2015. American Institue of Science.</p> <p>Yunanda Jhon Murniati, Yoseva Sri. 2015. Pertumbuhan Setek Batang Tanaman Buah Naga <em>(Hylocereus costaricensis)</em> Dengan Pemberian beberapa Konsentrasi Urin Sapi. JOM Faferta Vol 2. No. 1 Februari 2015. UNRI.</p> 2020-04-08T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3790 Study of Ms Media With Addition Of Auxins And Cytokinin on Growth and Development of Arr (Arenga Pinnata (Wurmb) Merr.) Culture. 2020-04-13T14:32:52+07:00 Alqamari Muhammad alqomari484@umsu.ac.id Thalib Bismar bismarthalib@umsu.ac.id Harahap FS fitrasyawalharahap@gmail.com <p><em>Aren has an important role as a biofuel producer, so research is needed for the development of this plant. This research has been carried out in the Tissue Culture Laboratory of the Department of Agrotechnology, Faculty of Agriculture, Muhammadiyah University, North Sumatra, from October 2017 to September 2018. This study aims to obtain a combination of concentrations of growth regulators of curcumin and cytokines which are best for increasing plant population in vitro culture. , as well as to produce large quantities of quality plantlets in a relatively short time. Experiments in the form of a Completely Randomized Design (CRD) were repeated 3 times with 5 samples of each treatment to obtain 105 units of experimentation. The first series experiment was the regeneration stage, shoot tip results were cultured on WPM media with a concentration of 0.25 ppm + 1.0 ppm Kinetin which was used as explants. Furthermore, the shoots were regenerated in the WPM medium with the treatment of concentration of growth regulators of auxin and cytokinin which consisted of 7 treatment levels, namely (E0) 0.00 ppm NAA + 0.00 ppm BAP, (El) 0.00 ppm NAA + 0.25 ppm BAP, (E2) 0.50 ppm NAA + 0.00 ppm BAP, (E3) 0.50 ppm NAA + 0.50 ppm BAP, (E4) 0.00 ppm NAA + 0.75 ppm BAP, (E5) 0.50 ppm NAA + 0.75 ppm BAP, (E6) 1.00 ppm NAA + 1.00 ppm BAP. From the observed variables, the percentage of live explants and percentage of explants forming callus the best results were found in a combination of 1.00 ppm NAA + 1.00 ppm BAP (E6) concentration.</em></p> <p> </p> <p><strong><em>References</em></strong></p> <p>Asikin D, Puspitaningtyas DM. 2000. Studi perkecambahan biji aren (<em>Arenga</em> <em>pinnata </em>(Wurm) Merr.) secara <em>in vitro </em>dan <em>in vivo</em>. Di dalam: <em>Prosiding</em> <em>Seminar Hasil Penelitian dan Pengembangan Bioteknologi </em>III. 2000 Maret 7- 9; Cibinong, Indonesia. Cibinong (ID). hlm 411-419.</p> <p>Doods AH, Roberts LW. 1999. <em>Experiments in Plant Tissue Culture </em>3rd Ed. Cambridge (GB). Cambridge University Press.</p> <p>Harahap, P., Harahap, E.M., Harahap, D.E. and Harahap, F.S., 2018. Eksplorasi dan Identifikasi Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan. <em>Jurnal Pertanian Tropik (Indonesian Tropical Agriculture Journal) accredited by KEMENRISTEK DIKTI No: 21/E/KPT/2018</em>, <em>5</em>(3, Dec), pp.423-427.</p> <p>Harahap, P., Harahap, M.K. and Harahap, F.S., 2019. Identifikasi Karakter Fenotip Daun Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan. <em>Jurnal Pertanian Tropik (Tropical Agriculture Journal) accredited by KEMENRISTEK DIKTI No: 21/E/KPT/2018</em>, <em>6</em>(3, Dec), pp.472-476.</p> <p>George EF, Sherrington PD. 1984. <em>Plant Propagation by Tissue Culture: Handbook</em> <em>and Directory of Commercial Laboratories</em>. England (GB): Exegetic Ltd.</p> <p>Gomez, K.A. and Gomez, A.A., 1995. Prosedur statistik untuk penelitian pertanian. <em>Edisi ke</em>, <em>2</em>.</p> <p>Gunawan LW. 1987. <em>Teknik Kultur Jaringan. </em>Bogor (ID): Pusat Antar Universitas (PAU) IPB.</p> <p>Julianti, Reine Suci Wulandari, dan Herlina Darwati. 2013. Penambahan NAA dan BAP Terhadap Multiplikasi Subkultur Tunas Gaharu <em>(Aquilaria Malaccensis </em>Lamk<em>). </em>Jurrnal Hutan Lestari.</p> <p>Karjadi,AK dan A.Buchori. 2007. Perkecambahan dan Perbanyakan Gaharu secara <em>In Vitro. </em>Jurnal Hort.</p> <p>Rofik A, Murniati E. 2008. Pengaruh perlakuan deoperkulasi benih dan media perkecambahan untuk meningkatkan viabilitas benih aren (<em>Arenga pinnata</em> (Wurmb) Merr.). <em>Bul Agron. </em>36: 33-40.</p> <p>Rozen, Nalwida. 1989. Pengaruh suhu awal perendaman terhadap pemecahan dormansi enau <em>(Arenga pinna/a </em>(Wumrb) Merr) dan pertumbuhan bibit dipersemaian. Tesis. Fakultas Pertanian Universitas Andalas Padang.</p> <p>Rusmin, Devi. 1992. Pengaruh lama pemberian periode gelap terhadap perkecambahan benih enau (<em>Arenga pinnata</em> (Wumrb) Men) dan pertumbuhan bibit di persemaian Tesis. Fakultas Pertanian Universitas Andalas. Padang.</p> <p>Masyudi, M.F. 1992. Pengaruh zat pengatur tumbuh 2,4- D dan BAP pada kultur jaringan biji padi rnasak panen, <em>dalam; </em>Bulettin Pertanian. Jakarta. 12 (1). P: 1 -7.</p> <p>Moore, T.C. 1979. Biochemistry and Physiology of plant hormones. Springer-Verlag, New York. 174 p.</p> <p>Murashige T, Huang LC. 1985. Organogenesis in vitro: structural, physiological, and biochemical aspects.in <em>Biotechnology in International</em> <em>Agricultural Research. International Agricultural Research Center (IARCs)</em> <em>and Biotechnology; </em>1984 April 23-27; Manila (PH): IRRI. p.227-240.</p> <p>Nisak, K., Tutik Nurhidayati, dan Kristanti I.Purwani. (2012). Pengaruh Kombinasi konsentrasi ZPT NAA dan BAP pada Kultur Jaringan Tembakau <em>Nicotiana tabacum </em>var. Prancak 95. Jurnal Sains Dan Seni Pomits</p> <p>Saleh MS, Wardah. 2010. Perkecambahan benih aren dalam kondisi terang dan gelap pada berbagai konsentrasi GA3. <em>J. Agrivigor</em>. 10:18-25.</p> <p>Satria, B. 1995. Perbanyakkan manggis <em>(Garcinia mangostana </em>L.) dengan menggunakan eksplan hipokotil .pada kombinasi dosis arang aktif dengan komposisi konsentrasi BAP dan NAA secara <em>in vitro</em>. Universitas Andalas Padang. 105 hal.</p> <p>Sirait D. 2010. Pengaruh skarifikasi bagian-bagian benih dan konsentrasi asam giberelat (GA3) terhadap perkecambahan benih aren (<em>Arenga pinnata </em>L.<em>)</em> [Skripsi]. Medan (ID): Universitas Sumatera Utara.</p> <p>Usman MA. 2006. Pengaruh tingkat kemasakan dan pematahan dormansi benih aren (<em>Arenga pinnata (</em>Wurmb.) Merr.) pada kondisi media yang berbeda [Skripsi]. Bogor (ID): Instititut Pertanian Bogor’</p> <p>Wattimena GA. 1988. Zat Pengatur Tumbuh Tanaman. Bogor (ID): Pusat Antar Universitas (PAU) IPB.</p> <p>Wattimena GA, Gunawan LW, Mattjik NA, Syamsudin E, Wiendi NMA, Ernawati A. 1992. Bogor (ID): Pusat Antar Universitas (PAU) IPB.</p> <p>Widyawati N, Tohari, Yudono P, Soemardi I. 2009. Permeabilitas dan perkecambahan benih aren (<em>Arenga pinnata </em>(Wurmb.) Merr). <em>J. Agron</em>. <em>Indonesia</em>. 37:152-158.</p> <p> </p> 2020-04-08T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3787 The effect of Giberelin on seed germination of Lokananta Varieties in Vitro 2020-04-13T14:42:22+07:00 Harahap Syahfitri arianisyahfitri@dosen.pancabudi.ac.id <p>Lokananta varieties are one of the best vegetables in Indonesia. The aim of this research is to find out the influence of Giberlin on the formation of red onion buds for superfruit in vitro. The research was carried out in the Laboratory and Garden Experiments of Panca Budi Development University, Medan, which began in March until January 2019. The research was using a non-factorial Complete Design (RAL) non-factorial analysis, which was analyzed using the analysis of the data obtained, with the analysis of the data obtained. germination (%), number of leaves (cm), number of roots (fruit). and root length (cm) have no effect.</p> <p> </p> <p><strong>References</strong></p> <p>Ariani, E., F.Y. Wicaksono, A.W. Irwan, T. Nurmala, and Y. Yuwariah. 2015. Pengaruh berbagai pengaturan jarak tanam dan konsentrasi giberelin (GA3) terhadap pertumbuhan dan hasil tanaman gandum (Triticum aestivum L.) kultivar dewata di dataran medium Jatinangor. Agric. Sci. J., 2(1):31–52.</p> <p>Badan Pusat Statistik. 2014. Produksi Bawang Merah Sumatera Utara. Biro Statistik Sumatera Utara, Medan.</p> <p>Elfianis, R, S. Hartina, I. Permanasari dan J. Handoko. Pengaruh Skarifikasi dan Hormaon Giberelin (GA3) Terhadap Daya Kecambah dan Pertumbuhan Bibit Palem Putri (Veitchia meerilli).</p> <p>Harahap, F. 2011. Kultur Jaringan Tanaman. Penerbit Unimed, Medan. Heddy, S. 1986. Hormon Tumbuhan. CV Rajawali. Jakarta.</p> <p>Iriani Enndang. 2013. Prospek Pengenbangan Inovasi Teknologi Bawang Merah di Lahan Sub Optimal (Lahan Pasir) Dalam Upaya Peningkatan Pendapatan Petani. Balai Pengkajian Teknologi (BPTP) Jawa Tengah.</p> <p>Lakitan, B. 1996. Fisiologi Pertumbuhan dan Perkembangan Tanaman. PT Raja Grafindo Persada. Jakarta.</p> <p>Luta, D.A., Siregar, M., Sabrina, T. and Harahap, F.S., 2020. Peran Aplikasi Pembenah Tanah Terhadap Sifat Kimia Tanah Pada Tanaman Bawang Merah. <em>Jurnal Tanah dan Sumberdaya Lahan</em>, <em>7</em>(1), pp.121-125.</p> <p>Pavlista, A.D., K. Santra, and D.D. Baltensperger. 2013. Bioassay of winter wheat for gibberellic acid sensitivity. Am. J. of Plant Sci., 4:2015-2022.</p> <p>Salisbury, F.B. dan C.W. Ross. 1995. Fisiologi Tumbuhan. Biokimia Tumbuhan, Jilid 2. Penerjemah: Lukman D.R dan Sumaryono. Penerbit ITB. Bandung.</p> <p>Sari, H. P., C. Hanum, dan Charlog. 2014. Daya Kecambah dan Pertumbuhan Mucuna bracteata Melalui Pematahan Dormansi dan Pemberian Zat Pengatur Tumbuh Giberelin (Ga3). Jurnal Online Agroekoteknologi, 2 (2) : 630- 644.</p> <p>Surajudin As’ad., R. Yusuf, dan H. Mas’ud. 2015. Respon Tanaman Bawang Merah (Allium Ascalonicum L.) Varietas Lembah Palu Terhadap Pemberian Jenis Mulsa Dan Pupuk Organik Cair.</p> <p>Wattimena. 1988. Zat Pengatur Tumbuh Tanaman. PAU Bioteknologi IPB. Bogor.</p> <p> </p> <p> </p> 2020-04-08T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3709 Growth response of shallot (Allium ascalonicum L.) varieties on municipal waste compost application 2020-04-13T14:45:09+07:00 Luta Devi Andriani deviluta89@gmail.com Siregar Maimunah MaimunahSiregar@gmail.com Wahyuni Sri Br. PA Wahyuni@gmail.com <p><em>Growth of shallot plants could be increased through good plant cultivation such as using organic materials that can improve physical, chemical and biological properties in the soil and contain macro and micronutrients so that organic matter is needed in the form of municipal waste compost.</em> <em>The research objective was to study the responsiveness of the growth of onion varieties due to the application of municipal waste compost. This research was carried out in the Bandar Senembah village Binjai district Barat in February-March 2019. The study used a randomized block design (RAK) with 2 factors and 3 blocks. The first factor is the variety (V) and the second factor is Municipal waste compost (K). The results showed that that the best varieties are varieties Bima Brebes. Where the variety showed the highest leaf length per sample and highest number of tillers per sample while the application of municipal waste compost does not show a significant effect on parameters of leaf length per sample but for the number of tillers per sample shows a significant effect where the best results in the application of 3 kg/m<sup>2</sup> (plot) municipal waste compost.</em></p> <p> </p> <p><strong>REFERENCES</strong></p> <p><strong> </strong></p> <p>Ahmed, M. E., El-Kader, N. I. A. &amp; Derbala, A.A.E. (2009). Effect of Irrigation Frequency and Potassium Source on the Productivity, Quality, and Storability of Garlic. <em>Australian Journal Of Basic and Applied Sciences</em>, 3(4), 4490–4497.</p> <p>Alfian, D. F., Nelvia &amp; Yetti, H. (2015). The Effect of Potassium Fertilizer and Compost Mixture of Oil Palm Empty Bunches with Boiler Ash on Growth and Yield of Onion (<em>Allium ascalonicum</em> L.). <em>Jurnal Agroekoteknologi</em>, 5(2), 1-6.</p> <p>Amiroh, A. (2017). Pengaplikasian dosis pupuk bokashi dan KNO<sub>3</sub> terhadap pertumbuhan dan hasil tanaman melon (<em>Cucumis melo</em> L.). <em>Jurnal Saintis</em>, 9(1), 25 - 36.</p> <p>Arisha, H. M. E.,. Ibraheim, S. K. A &amp; El-Sarkassy, N. M. (2017). The response of garlic (<em>Allium sativum</em> L.) yield, volatile oil, and nitrate content to foliar and soil application of potassium fertilizer under sandy soil conditions. <em>Middle East Journal of Applied Sciences</em>, 7(1), 44-56.</p> <p>Aslamiah, I. D., dan Sularno. (2017). The response of growth and production of peanut plants of the addition of organic fertilizer concentration and reduction of an organic fertilizer dosage. Prosiding Seminas Nasional Fakultas Pertanian UMJ.</p> <p>BPS. (2018). Statistik Indonesia. Badan Pusat Statistik Republik Indonesia, Jakarta.</p> <p>Gunadi, N. (2009). Kalium sulfat dan kalium klorida sebagai sumber pupuk kalium pada tanaman bawang merah. <em>Jurnal Hortikultura</em>, 19(2),174-185.</p> <p>Hickey, M. (2012). Growing Garlic in NSW Second Edition. Primefact 259. Department of Primary Industries. NSW Government. Australia.</p> <p>Hilal, M.H., Selim, A.M. &amp; El-Neklawy, A.S. (1992). Enhancing and retarding effect of combined sulfur and fertilizer applications on crop production in different soils. In Proceedings Middle East Sulphur Symposium 12-16 February, Cairo, Egypt.</p> <p>Marschner, P.( 2012). Mineral Nutrition of Higher Plants Third Edition. Elsevier Ltd. Oxford.</p> <p>Nainwal, R. C., Sigh, D., Katiyar, R. S., Sharma, I &amp; Tewari, S. K. (2015). The response of garlic to integrated nutrient management practices in a sodic soil of Uttar Pradesh, India. <em>Journal of Spices and Aromatic Crops</em>, 24(1), 33-36.</p> <p>Putra, A. A. G. (2013). Kajian aplikasi dosis pupuk ZA dan kalium pada tanaman bawang putih (<em>Allium sativum</em> L.). <em>Jurnal Ganec Swara</em>, 7(2), 10–18.</p> <p>Setiawati, W., Murtiningsih, R., Sopha, G. A &amp; Handayani, T. (2007). Petunjuk Teknis Budidaya Tanaman Sayuran. Balai Penelitian Tanaman Sayuran.</p> <p>Shafeek, M. R., Nagwa, M. H., Singer, S. M., &amp; El-Greadly, N. H. (2013). Effect of potassium fertilizer and foliar spraying with Ethereal on plant development, yield, and bulb quality of onion plants (Allium cepa L). <em>Journal of Applied Sciences Research</em>, 9(2), 1140-1146.</p> <p>Sholihin, Y., Suminar, E., Rizky, W.H. &amp; Pitaloka, G.G. (2016). Meristem explants growth of garlic (<em>Allium sativum</em> L.) Cv. tawangmangu on various compositions of kinetin and ga3 in vitro. <em>Jurnal Kultivasi</em>, 15(3), 172–179.</p> <p>Sulichantini, E. D. (2016). Effect of plant growth regulator Concentration Against Regeneration Garlic (<em>Allium sativum</em> L) In the Tissue Culture.. <em>Jurnal Agrifor</em>, 15(1), 29–38.</p> <p>Suminarti, N.E. (2010). The Effects of N and K Fertilization on the Growth and Yield of Taro on Dry Land. <em>Akta Agrosia</em>, 13(1), 1–7.</p> <p>Uke, K. H. Y., Barus, H &amp; Madauna, I. W. (2015). Effect of Tuber Sizes and Potassium Dosages on Growth and Production of Shallots var. Lembah Palu. <em>Jurnal Agrotekbis</em>, 3(6), 655 - 661.</p> <p>Utomo, P.S &amp; Suprianto, A. (2019). Respon pertumbuhan dan produksi tanaman bawang merah (<em>Allium ascalonicum</em> L.) varietas thailand terhadap perlakuan dosis pupuk kusuma bioplus dan KNO<sub>3</sub> putih. <em>Jurnal Ilmiah Hijau Cendekia</em>, 4(1), 28–34.</p> <p>Wu, C., Wang, M., Cheng, Z &amp; Meng, H. (2016). The response of garlic (<em>Allium sativum</em> L.) bolting and bulbing to temperature and photoperiod treatments. <em>Biol Open</em>, 5(4), 507-518.</p> 2020-04-11T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3840 Hanpen Fish Cake, Rough Flathead (Grammoplites scaber) Diversification Product 2020-04-11T13:55:08+07:00 Novita Sari Lubis marnyda@gmail.com Ayu Diana marnyda@gmail.com Marnida Yusfiani marnyda@gmail.com <p><strong>ABSTRACT</strong></p> <p>Rough flathead (<em>Grammoplites scaber</em>) is a non-economical and white-fleshed fish. It's suitable for fish-based processing products. <em>Hanpen</em> is one of the Japanese fish cake. Diversification of surimi-based Rough flathead becomes <em>Hanpen</em>. This research studied the consumer acceptance and chemical composition of <em>Hanpen</em> Rough flathead. The experimental methods are used in this research with 3 treatments and Deuteronomy, the addition of surimi Rough flathead A<sub>1</sub> = 100 g, A<sub>2</sub> = 150 g, and A<sub>3</sub> = 200 g. The randomized block data, ANOVA, was performed to analyze the data. The results showed that <em>Hanpen</em> Rough flathead product that can be accepted by panelists is A<sub>2</sub> treatment, which scores 7,28 at like level specification. The addition of surimi Rough flathead had a significant effect (p&lt;0,05) on organoleptic test parameters (appearance, aroma, taste, and texture) and proximate tests (crude protein, crude fat, water content, ash content, and carbohydrate) to <em>Hanpen</em>. The highest value of proximate test for three treatments were crude protein = A<sub>1</sub> (5,36); carbohydrate = A<sub>1</sub> (11,36); crude fat = A<sub>2</sub> (0,39); water content = A<sub>3</sub> (83,67); dan ash content = A<sub>2</sub> (2,84).</p> <p> </p> <p><strong>References</strong></p> <p>Agustin, T. I. (2012). Mutu fisk dan Mikrostruktur Kamaboko Ikan Kurisi ( Nemipterus nematophorus ) dengan Physical and Microstructure Quality of Kamaboko Kurisi Fish. <em>JPHPI, Masyarakat Pengolahan Hasil Perikanan Indonesia</em>, <em>15</em>(1), 18–26.</p> <p>Bozova, B., &amp; Centinkaya, S. (2019). Surimi and surimi products. <em>2nd International Symposium on Limnology and Freshwater Fiheries</em>.</p> <p>BPS. (2019). Produksi Perikanan menurut Asal Tangkapan di Kota Tanjungbalai 2010 - 2017. Retrieved March 23, 2020, from https://tanjungbalaikota.bps.go.id/dynamictable/2017/07/12/110/produksi-perikanan-menurut-asal-tangkapan-di-kota-tanjungbalai-ton-2010-2017.html</p> <p>Damanik, M. R. S., Sriadhi, Habibi, M. R., &amp; Harefa, M. S. (2018). Diversifikasi Pengolahan Ikan sebagai Upaya Peningkatan Ekonomi Masyarakat Nelayan Desa Bagan Serdang Kecamatan Pantai Labu Kabupaten Deli Serdang. <em>Jurnal Pengabdian Kepada Masyarakat</em>, <em>23</em>(4), 455–459.</p> <p>Diana, A., &amp; Lubis, A. F. (2018). Peningkatan Potensi Ikan Baji - Baji ( Grammoplites scaber ) Dan Proporsi Bagian Tubuh Sebagai Sumber Bahan Baku. <em>AGRINTECH: Jurnal Teknologi Pangan Dan Hasil Pertanian</em>, <em>2</em>(1), 14–22.</p> <p>Ilza, M., &amp; Siregar, Y. I. (2015). Sosialisasi penambahan minyak perut ikan jambal siam dan minyak ikan kerapu pada bubur bayi untuk memenuhi standar omega 3 dan omega 6. <em>Jphpi</em>, <em>18</em>, 262–275. https://doi.org/10.17844/jphpi.2015.18.3.262</p> <p>Jia, R., Katano, T., Yoshimoto, Y., Gao, Y., Nakazawa, N., Osako, K., &amp; Okazaki, E. (2020). Effect of small granules in potato starch and wheat starch on quality changes of direct heated surimi gels after freezing. <em>Food Hydrocolloids</em>, <em>104</em>(February), 105732. https://doi.org/10.1016/j.foodhyd.2020.105732</p> <p>Karsa, A. (2004). <em>Kebiasaan Makanan Ikan Baji-baji (Grammoplites scaber (Linnaeus, 1758)) di Perairan Mayangan, Subang, Jawa Barat</em>. Institut Pertanian Bogor.</p> <p>Kim, S. K. (2013). Seafood processing by-products: Trends and applications. <em>Seafood Processing By-Products: Trends and Applications</em>, <em>9781461495</em>(March 2014), 1–597. https://doi.org/10.1007/978-1-4614-9590-1</p> <p>Kobayashi, Y., Huge, J., Imamura, S., &amp; Hamada-Sato, N. (2016). Study of the cross-reactivity of fish allergens based on a questionnaire and blood testing. <em>Allergology International</em>, <em>65</em>(3), 272–279. https://doi.org/10.1016/j.alit.2016.01.002</p> <p>Kwon, Y.-M., &amp; Lee, J.-S. (2013). A Study on the Quality Characteristics of Fish Cakes Containing Rice Flour. <em>Korean Journal of Human Ecology</em>, <em>22</em>(1), 189–200.</p> <p>Laksono, U. T., Suprihatin, S., Nurhayati, T., &amp; Romli, M. (2019). Enhancement of Textural Quality From Daggertooth Pike Conger Fish Surimi with Sodium Tripolyphosphate and Transglutaminase Activator. <em>Jurnal Pengolahan Hasil Perikanan Indonesia</em>, <em>22</em>(2), 198–208. https://doi.org/10.17844/jphpi.v22i2.27373</p> <p>Motamedi, M., Teimori, A., Amiri, V., &amp; Hesni, M. A. (2020). Characterization of age-dependent variability in the flank scales of two scorpaeniformes fishes by applying light and scanning electron microscopy imaging. <em>Micron</em>, <em>128</em>(September 2019), 102778. https://doi.org/10.1016/j.micron.2019.102778</p> <p>Nurhadi, B., &amp; Nurhasanah, S. (2010). <em>Sifat Fisik Bahan Pangan</em>. Bandung: Widya Padjajaran.</p> <p>Radityo, C., Darmanto, Y., &amp; Romadhon, R. (2014). Pengaruh Penambahan Egg White Powder Dengan Konsentrasi 3% Terhadap Kemampuan Pembentukan Gel Surimi Dari Berbagai Jenis Ikan. <em>Jurnal Pengolahan Dan Bioteknologi Hasil Perikanan</em>, <em>3</em>(4), 1–9.</p> <p>Rijal, M. (2017). Diversifikasi Produk Olahan Ikan Bagi Ibu-Ibu Nelayan di Dusun Mamua Kabupaten Maluku Tengah. <em>Jurnal Biology Science &amp; Education</em>, <em>6</em>(2), 159–170.</p> <p>Satam, S. B., Sharangdhar, S. T., Sharangdhar, M. T., Sajid, I. K., &amp; Sonawane, U. D. (2004). Surimi : The " High-Tech " Raw Material from Minced Fish Meat. <em>Fishing Chimes</em>, <em>24</em>(8), 49–55.</p> <p>Silovs, M. (2018). Fish processing by-products exploitation and innovative fish-based food production. <em>Research for Rural Development</em>, <em>2</em>(May), 210–215. https://doi.org/10.22616/rrd.24.2018.074</p> <p>Simanjuntak, C. (2016). <em>Hubungan Konsumsi Ikan dengan Tingkat Kecukupan Protein Anak Balita pada Keluarga Nelayan Kelurahan Pasir Bidang Kecamatan Sarudik Kabupaten Tapanuli Tengah</em>. Retrieved from http://repositori.usu.ac.id/handle/123456789/16639</p> <p>Simanjuntak, C. P. ., &amp; Zahid, A. (2009). Kebiasaan Makanan dan Perubahan Ontogenetik Makanan Ikan Baji-Baji (Grammoplites scaber) di Pantai Mayangan, Jawa Barat. <em>Jurnal Iktiologi Indonesia</em>, <em>9</em>(1), 63–73.</p> <p>Standar-Nasional-Indonesia. (2013). <em>SNI 2694 Surimi</em>. Jakarta: Badan Standarisasi Nasional.</p> <p>Syahputra, I., &amp; Susetya, I. E. (2018). Struktur Komunitas Moluska di Estuari Desa Bagan Asahan Kecamatan Tanjung Balai Kabupaten Asahan. <em>Aquacoastmarine</em>, <em>6</em>(4), 122–131.</p> <p>Vikas, Kumar, R., Ganganand, S. S., &amp; Jaiswar, A. K. (2016). <em>Discrimination of Species of Genera Grammoplites and Cociella ( Family : Discrimination of Species of Genera Grammoplites and Cociella ( Family : Platycephalidae ) Occurring in Indian Waters , Based on Multi-variate Analysis</em>. (March 2017).</p> <p>Vikas, Rao, B. M. S., Jaiswar, A. K., &amp; Lakra, W. S. (2018). <em>Taxonomic evaluation of Grammoplites scaber ( Linnaeus , 1758 ) and G . Suppositus ( Troschel , 1840 ) from Indian waters </em></p> <p>Wardhani, R. M. (2010). Diversifikasi produk olhan ikan ( Abon Tuna , Dendeng Lemuru , Krupuk Rambak Tuna ). <em>Agritek</em>, <em>11</em>(2), 54–64.</p> <p>Winarno, F. G. (2004). <em>Kimia Pangan dan Gizi</em>. Jakarta: PT. Gramedia Pustaka.</p> <p>Yu, X., Li, L., Xue, J., Wang, J., Song, G., Zhang, Y., &amp; Shen, Q. (2020). Effect of air-frying conditions on the quality attributes and lipidomic characteristics of surimi during processing. <em>Innovative Food Science and Emerging Technologies</em>, <em>60</em>(October 2019), 102305. https://doi.org/10.1016/j.ifset.2020.102305</p> <p>Yusfiani, M., Diana, A., &amp; Ansari, A. (2019). Perbandingan Chitosan buatan dari hasil samping industri pembekuan udang dengan Chitosan komersil terhadap pengawetan mutu kesegaran ikan Nila (Oreochromis niltoticus). <em>Jurnal Pertanian Trop</em><em>i</em><em>k</em>, <em>6</em>(3), 262–269. Retrieved from https://talenta.usu.ac.id/jpt/issue/view/279</p> 2020-04-25T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3866 Quality Analysis of Simplicia Red Ginger (Zingiber officinale Var. Rubrum) Rhizome with Different Drying Temperature 2020-04-09T20:19:14+07:00 Rizki Farrel rizkifarrel06@gmail.com Tahrir Aulawi rizkifarrel04@gmail.com Ahmad Darmawi rizkifarrel04@gmail.com <p><em>Red Ginger is ginger that is often used as a basic ingredient of herbal medicine because of its high essential oil content and the spiciest taste</em><em>. Part of the Red Ginger plant that is commonly utilized is a rhizome, to maintain the quality of ginger rhizome so as not to reduce the economic value, the fresh ginger rhizome is processed first before storing or selling, one of the ways is in the form of Simplicia. The purpose of this study was to obtain the best drying temperature for the quality of red ginger simplicia. The treatments given were drying at 90</em><em><sup>o</sup></em><em>C</em><em> (W<sub>1</sub>), 100</em><em><sup>o</sup></em><em>C</em><em> (W<sub>2</sub>), 110</em><em><sup>o</sup></em><em>C</em><em> (W<sub>3</sub>), and 120</em><em><sup>o</sup></em><em>C</em><em> (W<sub>4</sub>). The study design used a nonfactorial Complete Randomized Design (RAL) consisting of 5 replications. Drying using an oven that lasts for 300 minutes. Data were analyzed by analysis of variance and if it had the real effect it was followed by Duncan's test (DMRT). Observations made were water content, ash content, starch levels, oleoresin levels, and vitamin C. The best drying results are at a temperature of 120°C at a moisture content with an average value of 3.70%, a temperature of 90°C produces the best drying at ash content with an average value of 4.79%, the starch content of 55.72%, oleoresin content of 50.79% and vitamin C 7.67%. It can be concluded that drying using a temperature of 120°C results in a better quality of Simplicia red ginger rhizome in the water content. Whereas at Ash content, the starch levels, oleoresin levels, and vitamin C, the best temperature is in the drying treatment at 90°C.</em></p> <p> </p> 2020-06-04T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik https://talenta.usu.ac.id/jpt/article/view/3978 The Level of Land Suitability and Analysis of Lemongrass Farming in Krueng Meueh Sub-Watershed Aceh Province 2020-05-23T14:00:22+07:00 <p><em>Lemongrass is one of the agricultural commodities that produce citronella oil and will be a better product if the cultivation is carried out on the right land in the right way. This study aimed to determine the land suitability classes and farming feasibility for community citronella crops. The research was conducted at the Krueng Meueh Sub-watershed, Aceh from April to June 2019. The research was done in descriptive survey methods of forming a land mapping unit (LMU) of the study area. The LMU was obtained from an overlay of a soil map, slope map, and land use map with software ArcGis version 10.1. The soil characteristic data of each LMU and climate data were used for assessing land suitability classes, and to find out the level of farming feasibility of lemongrass in the study area with calculating values of Benefit-Cost Ratio (B/C), Internal Rate of Return (IRR), Net Present Value (NPV) and Break-Even Point (BEP). The result showed that the study area was considered suitable for lemongrass (S2 and S3). Classes of S2 were found at LMU 7 and 17 with base saturation (BS), soil pH, slope, and erosion hazard (EH) as constraint factors. While the other LMU is S3 class with soil pH, BS, organic-C, and EH as a constraint of lemongrass cultivation. The effort of land improvement for lemongrass in the study area such as liming, organic matter, and water-retaining pit or mounds. The lemongrass farming in the study area is feasible and profitable, based on values of NPV Rp.7,076,030, Net B/C 1.2, IRR 16%, and BEP </em><em>4 years 4.8 months 24 days</em><em>.</em></p> <p><em>Analysis of Land Suitability </em><em>a</em><em>nd Lemongrass Farming In Krueng Meueh Sub-Watershed Aceh Province</em></p> <p> </p> 2020-06-09T00:00:00+07:00 Copyright (c) 2020 Jurnal Pertanian Tropik