PENGARUH CEKAMAN KEKERINGAN TERHADAP PERTUMBUHAN DAN HASIL DUA VARIETAS KEDELAI (Glycine max (L.) Merril) PADA TANAH ULTISOL

Abstract

This study aims to determine the interaction between drought stress and varieties on the growth and yield of two soybean varieties. This study used a randomized block design (RBD) in a factorial pattern consisting of (two) factors, namely: The first factor two soybean varieties with the notation (V) consisting of two types, namely: Anjasmoro variety (V1) and Detap-1 variety (V2). second factor is level of drought stress with the notation (K) consisting of three levels: control water supply 100% field capacity (K0), 25% field capacity (K1), 50% field capacity (K2) and 75% field capacity (K3). Each treatment was repeated three times so there were 72 experimental units. The observed variables were plant height, total leaf area, stem diameter, number pods, number filled pods, number root nodules, number effective root nodules, not effective, dry weight of plants, dry weight seeds and harvest index. The results of this study indicate the varietal treatment had no significant effect on all observed variables except for the variable plant height, number of leaves and total leaf area, the drought stress treatment had significant effect all observed variables except for the variable number leaves and harvest index. The best growth was obtained in the Detap-1 variety treatment and the drought stress treatment, namely control or water supply of 100% field capacity.