Vol. 11, Issue 3 (2022)

Author(s):
Ekta Kamboj, Bhagat Singh and Anil Kumar Dhaka

Abstract:
The present investigation was carried out during the Rabi season of 2016-17 at the research farm of Wheat & Barley Section, Chaudhary Charan Singh Haryana Agricultural University, Hisar. The experiment was laid out in a split plot design with four sowing times (5^th November, 15^th November, 25^th November, 5^th December) in main plots and four wheat varieties (WH 1105, HD 2967, HD 3086, DBW 88) in subplots with three replications. Crop sown on 5^th November took the maximum number of days to attain days to 50% heading and days to maturity and thus, accumulated significantly higher growing degree days and helio-thermal units as compared to crop sown on 5^th December. Sowing of wheat on 5^th November resulted in a 27.4 per cent higher grain yield as compared to 5^th December sowing. Wheat variety HD 2967 took the maximum number of days to 50% heading while DBW 88 took the maximum number of days for maturity, resulting in higher growing degree days and helio-thermal units in wheat variety DBW 88. However, the maximum grain yield (5822 kg/ha) and the maximum heat use efficiency was recorded in wheat variety HD 3086.