VARIABILITY OF THE MAIN VALUE-ECONOMIC TRAITS OF F2-F4 COTTON HYBRIDS IN DIFFERENT SOIL-CLIMATE REGIONS OF UZBEKISTAN
DOI:
https://doi.org/10.17605/Keywords:
Cotton, hybrid combinations, variability, growing season, yield, fiber yield, soil-climatic conditions, selection.Abstract
The article studies the variability of valuable economic traits in various hybrid combinations of cotton (F2–F4) in Tashkent, Fergana and Kashkadarya regions. During the research, such traits as the duration of the growing season, cotton weight in one boll, fiber yield and fiber length were analyzed, and the degree of their differentiation depending on soil and climatic conditions was determined. The regional characteristics of trait variability were assessed using statistical analysis methods and graphical indicators. According to the results, the highest yield and fiber yield were observed in some hybrid combinations, which indicated their promising potential in the selection process. The influence of genotype and environment on trait variability was determined, and the insignificance of genotype-environment interaction was noted. The results of the study serve as an important scientific basis for creating high-yielding and adaptable varieties in cotton breeding.
References
1. Dospekhov VA Methodology of field experiment. - M.: Kolos, 1979. - 416 p.
2. Egamberdieva SA, Zhuraev ST Study of the length of the growing season in lines of different genetic origin in the conditions of the Tashkent, Fergana and Kashkadarya regions // Gene pool and plant breeding. V - international conference Novosibirsk, November 11-13, 2020. - P.193-196.
3. Juraev ST Qualitative indicators of cotton hybrid fiber grown in various regions of Uzbekistan // Uzbek State University of Agriculture, Tashkent. No. 3/2/1., 2021. - P. 45-48.
