MULTILOCATION TEST OF SWEET POTATO CLONES (IPOMOEA BATATAS L.) AT THE SWEET POTATO PRODUCTION CENTER IN EAST JAVA, INDONESIA

Abstract

This study aims to determine the yield potential of sweet potato in production centers such as Blitar, Malang and Mojokerto. In addition, this study also aims to identify clones that have high yield potential for sweet potato in production centers such as Blitar, Malang and Mojokerto. This study also aims to determine stable and adaptive clones in these three regions. The study was conducted from April to July 2020. The planting material used in this study included 3 hybrid sweet potato clones, including BIS-OP-61-OP-37, BIS OP-61-♂-13, Beta 2-♀-29 and 2 control varieties, namely Beta-2 and Sari. The research design used RBD (Randomized Block Design) with 3 sweet potato clones as the main ingredient and 2 varieties as a comparison material. The test used in this study was repeated 3 times, so that 15 plots were obtained at each location and 45 plots at 3 locations. Data analysis used combined analysis of variance as well as stability and adaptability tests. Clone BIS OP-61-♂-13 was a stable and adaptive clone at all locations on the characters of tuber weight, stover weight, tuber yield and stover yield. Clone BIS OP-61-OP-37 clone which was unstable but had the highest average tuber weight and tuber yield at 3 locations. Clone BIS OP-61-♂-13 is a stable and adaptive clone with lower tuber yield BIS OP-61-OP-37.