Author(s):

Sumant Prasad, AN Mishra, AK Singh and Manoj Kumar

Abstract: A field experiment was conducted during the Rabi season of 2015-16 to access the “Effect of sowing temperature on growth and yield of Indian Mustard (Brassica juncea L.)” in silty loam soil at Agro-meteorological Research Farm, N.D. University of Agriculture & Technology, Kumarganj, Faizabad. The experiment was conducted with nine treatment combinations consisted of three dates of sowing viz. D₁ (7^th November), D₂ (17^th November) and D₃ (27^th November) and three cultivars viz. V₁ (Varuna), V₂ (NDR-8501) and V₃ (NDR-4).Results revealed that 7^th November sown mustard crop produced significantly higher growth and yield due to fulfilment of optimum thermal requirement and solar light requirement for various processes of plant. Among the different cultivars of mustard, NDR-8501 was found more conducive for growth, development and thermal use efficiency as compared to Varuna and NDR-4. Higher seed yield (19.14q/ha) was recorded under 7^th November sowing date having average temperature 24.4 ⁰C as compared to 17^th November (21.5 ⁰C) sown mustard crop and 27^th November (18.7 ⁰C). Thermal unit (1796 ⁰C days) and Photo-thermal index (84.06) from sowing to maturity produced the high yield of Indian mustard.

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