Physiology and Yield of Chickpea (Cicer arietinum L.) Genotypes in Response to Different Sowing Dates in Semi Arid Regions of North India.

Background: Climate change causes variation in global temperature in last two decades which causes detrimental effects on agricultural crops being grown in arid and semi-arid regions. Chickpea crop sensitive to variation in temperature as the late-sown crop is exposed to high temperatures (>35°C) at its reproductive stage in the months of February and March and early sown crops is exposed to low temperature (<5°C) at its vegetative stage in December and January so optimum sowing time plays a vital role for overall growth and development of the plants. Methods: The experiment comprising of three sowing dates that is 15^th October (early sown condition in Haryana), 15^th November (Normal sown condition in Haryana) and 15^th December (late sown condition in Haryana) with ten chickpea (Cicer arietinum L.) genotypes namely ICCV 88503, ICCV 92944, HC-1, HC-3, HC-5, H12-64, H13-01, H13-02, H14-01 and H14-04 in randomized block design during Rabi season of 2017-18 and 2018-19 at Pulses Section, Chaudhary Charan Singh Haryana Agricultural University, Hisar. Result: Statistically no significant differences in seed yield was recorded between 15^th October and 15^th November sowing, however, further delay in sowing to 15^th December showed significant reduction in seed yield while maximum values for recorded physiological parameters in chickpea genotypes were found in 15^th November sowing and minimum in 15^th December sowing. Among genotypes maximum physiological parameters and seed yield were observed in H12-64 and H13-01 while minimum were found in H14-04. [ABSTRACT FROM AUTHOR]

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