Studies on character association and path analysis in ajwain (Trachyspermum ammi L.)

Abstract

The present investigation was conducted during December, 2017 to May, 2018 at Main Experimental Station of Vegetable Science, Acharya Narendra Deva University of Agriculture & Technology, Kumarganj, Ayodhya (U.P.). The field experiment was laid out in Agumented Block Design with 60 genotypes along with four checks to estimate correlation and path coefficient for ten yield contributing traits and identification of superior recombinants for their utilization in crop improvement programme. Most important traits yield per plant had exhibited highly significant and positive correlation exerted by germination% (0.50373) followed by days to maturity (0.40709), weight of grain per umbel (0.2797). However, negative direct effect was found in days to 50% flowering (-0.2151) and plant height (-0.0313) on fruit yield per plant. Direct contribution of these traits indicates the scope of improvements through selection for number of umbels per plant and yield per plant in the available germplasm.