Dissection of selection parameters of various yield and yield attributing traits of bread wheat (Triticum aestivum L.)

A study was undertaken to Dissection of Selection parameters viz., genetic variability, correlation and path coefficient analysis of yield and yield contributing traits in forty wheat genotypes grown at Section of Rabi Cereals, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur during Rabi season of 2020-21. All genotypes were showed wide genetic variations for all the traits under study. High GCV and PCV was observed for productive tillers per plant and spike length, whereas, low GCV and PCV was observed for days to maturity and days to flowering. High heritability with high genetic advance in per cent of mean was expressed by plant height, weight of 1000 grains, number of grains per spike and ear length per plant which reflected involvement of additive gene action for the expression of these character and selection for such trait might be useful. Plant height and chlorophyll content had high positive and significant correlation with grain yield per plant. Days of 50% flowering, productive tillers per plant, plant height, number of spikelets per spike, number of grains per spike, weight of 1000 grains had positive direct effect on grain yield per plant.