Abstract
This article presents the results of an analysis of studies on the variability of the trait of plant productivity and its components in cotton F1 hybrids, obtained on the basis of complete diallel crossing of dwarf, low-growing lines with tall cotton varieties of the species G. hirsutum L. It was revealed that in F1hybrids according to the harvest of raw cotton and its constituent elements, it varies differently depending on the genotypes of the parent components and combinations of crosses. Moreover, in F1 hybrids, a sign of the productivity of plants and its components shows dominance and overdomination of the signs of better and worse parents, aswell as an intermediate type of inheritance. It has been established that the indicator of the number of bolls and the yield of raw cotton per plant in tall varieties is controlled mainly by dominant genes, and the raw mass of one box of these varieties is controlled mainly by recessive genes
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