Vol. 11, Issue 9 (2022)

Author(s):
Yumkhaibam Nargis Sultana and KH Anush Sheikh

Abstract:
A field experiment to investigate the effect of different nitrogen levels on yield and yield components of late wheat varieties was conducted at the Student’s Demonstration and Research Field Department of Agriculture, Baba Farid College, Baba Farid Group of Institutions, Bathinda during rabi season 2018-19. The treatments consisted of three varieties (HP 3086, PBW 950 and PBW 658) and four nitrogen levels (0, 60, 120 and 180 kg N ha^-1). The experiment was laid out in split plot design with nitrogen levels as first factor in main plot and varieties as second factor in sub-plot with three replications. Different levels of nitrogen significantly increased the yield and yield components of wheat varieties. Yield attributing characters i.e., effective tillers m^-2, number of grains per ear and 1000-grain weight were maximum with 180 kg N ha^-1. Effective tillers m^-2 and 1000 grain weight recorded maximum with variety PBW 590 and number of grain ear^-1 was recorded maximum with PBW 658. Grain and straw yield were recorded maximum with nitrogen levels 180 kg N ha^-1. Among the varieties, maximum grain yield was recorded with PBW 590 and maximum straw yield was recorded with PBW 658. Biological yield and harvest index were recorded maximum with nitrogen levels 180 kg N ha^-1. Among the varieties, maximum biological yield was recorded with HD 308 and maximum harvest index was recorded with PBW 590.