INHERITANCE AND VARIABILITY OF THE «FIBER QUALITY» IN HYBRIDS F1 AND F2 OF COTTON VARIETIES OF THE SPECIES G.HIRSUTUM L.
DOI:
https://doi.org/10.52754/16948696_2023_4_5Keywords:
cotton, fiber quality, inheritance, variability, trait, transgression, type, variety, combination, fiber index, hybridAbstract
The article carries out a hybridological analysis of the inheritance of fiber quality traits in F1 hybrids of medium-fiber cotton varieties and variability in F2 hybrids and analyzes the inheritance and variability of the upper average length, short fiber index and elongation at break. The studied cotton varieties and their F1 hybrids do not differ statistically in terms of upper average fiber length; in F2 hybrids, left-sided negative transgression in this trait is not observed in some combinations (reciprocal hybrids of Namangan-77 and Dekhkanbob varieties, combination S-6524 x AN-Bayaut -2) directional positive transgressive variability occurs and plants with type III fiber are distinguished. It was revealed that the studied cotton varieties differ in the short fiber index, the range of variability of the trait in F2 hybrids is wide compared to the parent varieties, and mainly right-sided transgression occurs (except for the combination AN-130 x Namangan-77).
References
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