Performance of wheat ( Triticum aestivum L.) varieties under cold stress condition

The present investigation was conducted during the Rabi season of 2020-2021 at Agricultural Research Farm of SGRR University, Dehradun, India to study the performance of wheat varieties under cold stress condition. The experiment was laid out in factorial randomize block design with three replications. The treatments comprises five sowing dates viz. 5^th November, 15^th November, 25^th November, 5 December and 15^th December and two varieties i.e. Unnat PBW 343 and PBW 502. The variety Unnat PBW 343 performs better than variety PBW 502 in yield and yield contributing traits. The plant height (101.44 cm), number of tiller per plant (10.71), spike length (14.49 cm), number of grains per spike (74.30), test weight (39.72 g) and grain yield (43.34 q/ha) was recorded maximum with 15^th November sowing. The interaction of variety Unnat PBW 343 and 15^th November sowing gave maximum yield (42.67 q/ha) as compared to all other treatments combinations. It can be concluded that under prevalent climatic conditions of Dehradun region, the variety Unnat PBW 343 and 15^th November sowing time is best for higher yield of wheat crop as compared to all other treatments.