Study of heritability and genetic advance for yield and its contributing traits in bread wheat (Triticum aestivum L.)

Abstract

Wheat (Triticum aestivum L.) is number one cereal of the world and is grown on the largest area. Field experiment conducted at Crop Research Farm, Nawabganj of CSAUA&T in Kanpur. In this study the high heritability and high genetics advance for the twelve characters were observed in normal conditions. In different genotypes, high heritability (narrow sense) were recorded for days to maturity, one thousand grains weight, grain weight per spike, number of grains per spike, number of tillers per plant and while moderate heritability were found for plant height, harvest index, grain yield per plant, biological yield, spike length (cm) and days to 50% heading whereas number of spikelets per spike showed low heritability. The estimate of genetic advance in percentage over mean ranged from 5.56 (days to maturity) to 43.04 (number of productive tillers per plant) in Fl generation. The high value of genetic advance was recorded for number of tillers per plant. Moderate genetic advance were recorded for days to 50% heading, plant height (cm), spike length (cm), 1000 grain weight (g), grain weight per spike (g), biological yield per plant (g), grain yield per plant and harvest index. Low values of genetic advance were recorded for days to maturity, number of spikelets per spike and number of grain per spike in F1 generation.

Genetic Variability, Heritability and Genetic Advance of Yield and Yield Contributing Characters in Putative M2 Dolichos Bean (Lablab purpureus L.) Accessions

“…Similar results have been reported in other studies by [23] in chick pea mutant accessions in one of the three soya bean genotypes on pod clusters per plant, plant height, number of seeds/pod, 100 seed weight and seed yield/plant [15,24]. There is restricted scope for the improvement of these characters therefore it is a needful to build a broad germplasm base through collection, introductions or adopt suitable breeding methodology to utilize both additive and non-additive gene effects simultaneously [25].…”