Vol. 11, Issue 7 (2022)

Author(s):
Dinesh Patel, Ram Niwas, AS Yadav, Shravan Kumar Maurya, Jitendra Kumar and Avinash Singh

Abstract:
An agronomic investigation to study the response of various wheat varieties to different irrigation scheduling treatments through critical growth stage approach was conducted during Rabi season of year 2020-21 an agricultural Farm at Rama University, Kanpur 209217 (U.P) India. The experiment was laid out in split plot design with three replications. Four irrigation scheduling treatments [viz. I₁- one irrigation at CRI stage, I₂- Two irrigations at CRI & Late jointing stage, I₃- Three irrigations at CRI, Late jointing & Milking stage and I₄- Four irrigations at CRI, Maximum tillering, Late jointing & Milking stage] were allocated to main plots; whereas three wheat varieties (viz. HD-2967, K-1006 and HD-3086) were sown in sub plots. Higher growth attributing characters at different crop stages and yield attributing characters at harvest viz. plant height, number of tillers, leaf area index, plant dry matter, length of spike, number of spike, number of grains per spike and test weight were produced in wheat variety HD-2967 with irrigating the crop for four irrigations at CRI, maximum tillering, late jointing & milking stage. Similarly, higher grain yield, highest harvest index & Protein (%) along with B: C ratio and crop water use efficiency was recorded in variety HD-2967 with four irrigations at CRI, maximum tillering, late jointing & milking stage as compared to all the other treatments. All these plant growth and yield attributing characters and yield along with net monetary income & B: C ratio and lowest water use efficiency was observed in variety K-1006 under the condition of one irrigation at CRIstage applied in wheat.