Author(s):

Sumit Kumar Gupta, Rajan Chaudhari, SR Mishra and Sarvesh Baranwal

Abstract: Mustard is a major oilseed crop grown during rabi season. Weather variability causes substantial fluctuations in any crop production a field experiment was conducted during Rabi season of 2015-16 on the topic entitled “Effect of variable weather condition on growth and yield of mustard cultivars” in sandy loam soil of N.D. University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.). The experimental comprised of three growing environments viz., 15^th, October, 30^th, October, 14^th, November and three cultivars viz., NDR-8501, Varuna and Vardan. Results revealed that Highest Accumulation heat unit efficiency was recorded when sowing was done 15^th, October growing environment, followed by 30^th, October. Vardan variety was found more conducive for growth development, grain yield and Accumulated heat unit. Accumulated heat unit (1447.4.0⁰days), solar radiation interception (529.2MJm^-2), from sowing to maturity produced the high yield of Indian mustard.

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