Response of wheat (Triticum aestivum L.) varieties to different levels of nitrogen under rain fed condition

Abstract

An experiment on response of wheat (Triticum aestivum L.) varieties to different levels of nitrogen under rain fed condition was conducted at ITM University Gwalior (M.P.) to find at the optimum levels of nitrogen and suitable wheat varieties to grid region of Madhya Pradesh. Three levels of nitrogen (40, 60 and 80 Kg ha-1) in main plot and four Varieties (PBW613, C-306, PBW644 and PBW660) in sub plots were tested in split plot design with four replications. Number of plants per meter length, plant height, dry matter, and days to maturity; number of ear heads m-1 row length, spike length, number of spike lets per spike, grains per spike and grain weight per spike, and grain, straw and biological yield increased significantly with increase in nitrogen level from 40 to 60 Kg ha-1. Among varieties maximum shoot length, dry weight accumulation, number of grain spike-1, weight of grain spike,-1 length of spike and grain and straw yield and biomass was observed in variety C306 as compared to all other varieties. For the grid region of northen Madya Pradesh, growing of wheat variety C306 with 60 Kg N ha-1 under rain fed condition found promising.