Study on Genetic Effect of Yield and Related Traits through Generation Mean Analysis in Wheat (Triticum aestivum L.)

Abstract

The objective this study was to effect of gene effects for some agronomical traits (plant height, number of effective tillers per plant, number of spikelet per spike, number of seeds per plant, seed yield and biological yield) of Cross I CG1608 (HI 1544 x GW 2013 and Cross II CG 1639 (RAJ 4270 x GW 366) The experimental material comprising of six generations ( P 1 , P 2 , F 1 , F 2 , BC 1 and BC 2 ) of wheat crosses was planted during rabi 2018-19 in randomized block design of two replication under irrigated condition at All India Co-ordinated Wheat and Barley Improvement Project at B.T.

Breeding Enrichment of Genetic Variation of Grain Yield and Its Attributes in Bread Wheat under Drought Stress and Well Irrigation

“…The contribution of (d) in the inheritance of DH and DM was also stated by Raza et al [41], Attri et al [42] and Saleem et al [44] for proline content. Moreover, Sultan et al [37], Patel et al [43] and Sharma et al [20] reported additive genes were controlled traits of yield components in the various wheat crosses.…”

“…Therefore, heterosis breeding could be possible to the improvement of these traits over hybridization (recombination breeding) followed by selection at later generations to obtain better lines under both good irrigation and drought stress environments and it is suggesting for exploiting dominance gene action (h) and these methods must be followed in the next future study. The various studies exhibited also the complex genetic inheritance of grain yield/plant and its components [20,29,46].…”

“…In addition, the GMA is a simple and useful model to estimate additive (d) and dominance (h) and digenic interactions (d × d, d × h, and h × h). Thus, the GMA method helps plant breeders to select the best relative breeding strategy to improve plant characters [18,20].…”