Diallel Analysis of the Bread Wheat (Triticum aestivum L.) in the Southern Regions of the Republic of Uzbekistan

Diallel analysis assumes that the genetic interactions contributing to trait variation can be adequately captured by GCA and SCA effects. However, in reality, more complex, involving higher-order epistatic interactions, pleiotropy, other factors are not accounted for traditional diallel analysis, this purpose, studies were conducted study combinatorial ability of wheat varieties widely planted Uzbekistan.
 The mode inheritance 1000- kernel weight, vegetation period, plant height, vitreousity, grain yield, mass ear productive accumulation 4x4 full crosses was estimated F1 generation. results indicated significant differences between parents Generаl Combining Ability cross Specific Ability, reciprocal effect accumulation. variance combining capable yield Reciprocal effects highly importance while Ability. Highly variances showed predominance additive, dominant genes controlling character.
 In process hybridization, application original biped gene is important, its appearance generation, it necessary choose a positive line General way, will possible pre-estimate characteristics future.
 A negative heterozygosity parent found studied trait, which increased diversity parents.