Productivity of several lines of soybean in Majalengka, West Java, Indonesia

Abstract

Soybean (Glycine max L. Merr) is a very important crop in Indonesia. The creation of new elite varieties is one approach to increase the national production of soybean. We have developed several potential lines of soybean to be released as a new varieties. Before releasing as new varieties, the productivity of these lines has to be evaluated in several locations. Therefore the objective of this research was to evaluate the productivity of six lines of soybean resulted from the cross between Slamet and Nokonsawon varieties, i.e. KH8, KH9, KH31, KH38, KH55, and KH71 in Majalengka, West Java, Indonesia. Four national elite varieties i.e. Anjasmoro, Slamet, Tanggamus and Wilis were used as standard. The experiment was conducted in two seasons by using randomized block design, with three blocks as replication. The result showed that based on the seed production per plant in two seasons, all six lines have higher productivity than Anjasmoro variety. The seeds of these six lines are bigger than that of standard varieties. Analysis of production stability in two seasons showed that KH71 is the most stable genotype in Majalengka. By comparing to Anjasmoro variety in two seasons, all six lines have a potential to be released as new varieties with high productivity and big seed.