TY - JOUR AV - restricted A1 - Rao, R C N A1 - Singh, Sardar A1 - Sivakumar, M V K A1 - Srivastava, K L A1 - Williams, J H TI - Effect of water deficit at different growth phases of peanut. I. Yield responses UR - http://dx.doi.org/10.2134/agronj1985.00021962007700050026x JF - Agronomy Journal SN - 0002-1962 PB - American Society of Agronomy N2 - Response of groundnut cv. Robut 33-1 to drought stress imposed at (a) emergence to maturity, (b) emergence to peg initiation, (c) from the start of flowering to the start of seed growth, and (d) from the start of seed growth to maturity was studied during the post-rainy seasons of 1980-81 and 1981-82. The amount of water applied during these phases was varied using line-source irrigation, but the crops otherwise were irrigated uniformly at regular intervals. The greatest reduction in seed yield (28-96%) occurred when stress was imposed during (d). Decreased irrigation during (b) increased pod yield relative to the fully irrigated control treatment by 19% in 1980-81 and 13% in 1981-82. The evapotranspiration-yield relationships showed a strong interaction with timing of drought KW - Arachis hypogaea; Growth rate; Plant developmental stages; Crop yield; Water balance; Evapotranspiration Y1 - 1985/// SP - 782 ID - icrisat3647 EP - 786 VL - 77 IS - 5 ER -