THE ENANTIOMERATION OF GINNING PERCENTAGE AT ADVANCED GENERATION OF COTTON HYBRIDS DEVELOPED BY METHODS OF ECOLOGIC- LONG GEOGRAPHICAL HYBRIDIZATION

Abstract

Despite the greater achievements in the cotton breeding, in this article the issue of developing of initial materials was presented which hasn’t been almost studied yet for the breeding of the varieties with high (+)-gossypol traits through some breeding aspects including determination of the accessions with low total gossypol or nontoxic (+)- gossypol enantiomer among the world cotton germpool accessions, and involving them to breeding process. It has been emphasized that the researches on this concern are the prior tasks corresponding to the requirements of today and the future also the efficiency of of these varieties with positive traits in national economy, livestock husbandry and food industry. As research results it was noted that, there was possibility to select sustainable cotton progenies with high complex of agronomic valuable traits and high lint percentage among the F8-F9 developed by the method of ecologico- geographical long hybridization. Furthermore, it was concluded that the results of hybridization of the USA accessions with a high level of (+)-gossypol in seeds and local varieties were successful for both as developing of breeding material with high level of nontoxic (+)-gossypol in seeds and high lint percentage. KEYWORDS: cotton progenies, ecologico-geographical long hybridization, gossypol enantiomers, lint percentage.