INHERITANCE OF DEVELOPMENTAL PHASES OF VEGETATION PERIOD DURATION IN INTRASPECIFIC HYBRIDS OF HOPCHATNIK DEPENDING ON THE TYPE OF FRUIT BRANCHES

Babaev Yashin Amanovich; Orazbayeva Gulmira Egambergenovna; Gulyamov Ulugbek Gafurovich

doi:10.5281/zenodo.11079392

Babaev Yashin Amanovich, Orazbayeva Gulmira Egambergenovna, Gulyamov Ulugbek Gafurovich

Abstract. The article presents the results of inheritance of duration of development phases depending on the type of fruit branches. It was found that the studied developmental phases in intraspecific and interspecific F1 hybrids by duration of vegetation periods "sowing-flowering", "flowering-ripening" and "sowing-ripening" have different genetic nature of inheritance, i.e. intermediate inheritance, dominance and overdominance in the direction of soon-ripening and late-ripening parent. In F2 hybrids with marginal and non-marginal branching type, the inheritance of developmental phases is similar to F1 hybrids, although in most cases, late maturity is inherited by dominance and overdominance. The type of fruiting branches is not significant in the inheritance of developmental phases. It should be noted that the studied developmental phases are complex polymeric traits, and their inheritance depends on the combinatory ability of parental forms.

Keywords: variety, line, hybrid combination, early maturity, cotton, flowering, ripening, plant, inheritance.

References:

1. Abrarov A.A., Ibragimov Sh.I., Faizullaev M. Wilt and thickened crops. - Cotton growing, 1976, No. 10, pp. 29-30. 2. Amanturdiev A.B., Kim R.G. Bush structure and its interrelation with morpho-economic traits and wilt resistance of cotton G. hirsutum L. Monograph. Tashkent. "Fan", 2008. 295с. 3. Brezhnev D.D., Shmaraev G.E. Crop production in Australia //- M., Kolos, 1974, 349 p. 4. Dadabaev A.D., Simongulyan N.G. Selection of cotton varieties with compressed bush type. - In book: Issues of breeding, genetics and seed production of cotton. Works, vol. II, - Tashkent, 1966, p. 43-85. 5. Dadabaev A.D., Simongulyan N.G. Selection of cotton varieties with compressed bush type. In V. Voprosy breeding, genetics and seed production of cotton. Issue. 2. Tashkent, 1967, No. 7. p. p. 43-85. 43-85. 6. Maksimenko I.K. Structure of cotton bush and yield. Cotton growing, 1961, No. 5. С. 44-46. 7. Sagdullaev F. Type of branches as the main factor of early maturity of fine-fibre cotton. Cotton growing, 1968, No.12. С. 19. 8. Uzakov Y., Kholiyigitov H. Acceleration and branching type of cotton. Questions of genetics, breeding and seed production of cotton and alfalfa. Tashkent, Uzgiprozem, 1976, p. 57-62.