Yield performance of several peanut genotypes under two different soil moisture availabilities during plant growth

Abstract

Peanut is relatively tolerant to drought stress but the pod yield is influenced by soil moisture availability especially during its critical phases. The experiment was objected to study yield response of genotypes and their tolerance to drought stress during generative growth stage. The experiment was conducted at Muneng Research Station, East Java with D3 climate type. The experiment was undertaken during dry season to avoid interference from rains to the treatment. The split-plot design with three replications was applied. The main plot was watering treatment i.e. water available during the growing season and water available during vegetative growth (up to 50 DAS). The subplots were 20 peanut genotypes. Weeding, pest and disease controls were intensively undertaken. The results indicated that the average dry pod yield of 20 genotypes under well watered and drought stress treatments were 2.345 t and 1.585 t/ha. Based on MP, GMP, STI, RED, TOL, and SSI it can be concluded that G1 and G12 were genotypes with high yield and drought tolerant but huge yield reduction under water-stressed condition. G8 was drought tolerant genotype with little yield reduction under stress condition. G11 was susceptible to drought with low productivity and low yield reduction under stress condition.