INTRASPECIFIC DIVERSITY OF POLYMORPHIC SPECIES OF GOSSYPIUM L. GENUS AS A SOURCE OF NEW PROSPECTIVE COTTON CULTIVARS DEVELOPMENT

The article presents the results of the studies to identify genetic and breeding possibilities with the use of comparative morphology, intra and interspecific hybridization and practical genetics methods. The studies revealed morphological features and agronomic character of the wild, ruderal and cultivated tropical forms of G.herbaceum L. and G.arboreum L., along with new intra- and interspecific hybrids. The degree of compatibility of the intraspecific forms and their specific features at intra- and interspecific hybridization have been determined. The peculiarities of inheritance and the degree of heritability of some morphological features and agronomic character in the F1 and F2 intra- and interspecific hybrids have been identified.