Use of Ecologically Remote Hybridization in the Creation of High Yield Cotton Hybrid Material G.Barbadense l.

Abstract

The article presents the results of the analysis of the formation of the trait "fiber yield" in ecologically remote linear-varietal hybrids F1-F2 of fine-staple cotton, created on the basis of lines of their own selection, as well as varieties of Turkmen and Tajik breeding. Based on the results of the studies carried out on the basis of "fiber output", the following conclusions are drawn: - the sign "fiber output" against the background of artificially infected X.malvaceanum: - differentiates in its value, both among the original forms and F1-F2 hybrids, that is, high-yielding hybrids suitable for further use in breeding have been created; - the value of the dominance index (hp) indicates the presence of dominance effects in two F1 hybrids, namely, negative incomplete dominance of the worst parent and positive incomplete dominance of the best parent; - from the analysis of variational series and by the value of the heritability coefficient (h2), it was found that the trait "fiber output" is inherited at an average and high level, and a significant number of plants with a high value of the analyzed trait were identified.