A study was conducted with three chickpea genotypes (Annigeri-1, JG-11 and JG-14) and five dates of sowing (D1, D2, D3, D4 and D5) to study the effect of temperature regimes on various physiological, biochemical, yield and its components. Delayed sowing at D5 temperature regimes recorded significantly lower SPAD values, lower chl a, chl b, total chl content in leaf, lower chl a/b ratio and lower relative water content (RWC) in leaf than the other dates of sowing except D3 temperature regime, which recorded significantly higher SPAD (59.01) and RWC (75.54). This resulted in significantly higher number of pods and seeds (69.9 and 60.7), seed weight (15.62 g), haulm weight (3.36 g) per plant and seed yield (29.88 q ha-1) under D3 temperature regime. However, the temperature regime, D1 recorded significantly higher chl a, chl b total chl and chl a/b ratio as it received longer cool days during vegetative phase and during the post flowering coincided with higher temperature. Among the genotypes, JG-11 recorded significantly higher yield and yield components than the other genotypes.

Keywords: Chickpea, Chlorophyll, SPAD, Relative water content (RWC), Yield