Performance of Several Sweet Potatoes Genotypes from Simalungun and Dairi Highlands

Abstract

Sweet potato (Ipomoea batatas L.) is one of the food crops that can be used to diversify menus to maintain rice self-sufficiency. This research aim was to analyze the morphological character and production of several sweet potato genotypes in the highlands. This research was carried out in the experimental garden area of Balitsa, Tongkoh village, Berastagi Subdistrict, Karo District - Sumatera Utara, at an altitude of ± 1440 masl. This research was conducted from May to October 2018. This research used a randomized block design (RBD) method with one factorial, namely sweet potato genotype, which consists of the Seribu Dolok Genotype, Kampung Kesemak Genotype, Batang Beruh Genotype, Tanah Seribu Genotype, and the Beta-1 Variety. The observation variables being observed were morphological characters, tendrils length, tuber number per sample, tuber weight per sample, tuber weight per plot, and organoleptic test. The results showed that there were significant differences in the morphological characteristics of sweet potato genotypes, namely the increasing parameters of tendrils length, number of tubers per sample, tuber weight per sample, and tuber weight per plot.