ҒЎЗАНИНГ МАҲАЛЛИЙ НАВЛАР ВА ЭКОЛО-ГЕОГРАФИК УЗОҚ НАМУНАСИ ИШТИРОКИДАГИ ДУРАГАЙЛАРДА ТЕЗПИШАРЛИК БЕЛГИСИ ТАҲЛИЛЛАРИ

According to the results of the study, significant differences were observed in the duration of the vegetation period between local cotton varieties and the F₂ hybrid progenies obtained with the participation of the ecologically and geographically distant species Gossypium stocksii M.. In particular, the combinations F₂ (C-8284 × Barkhayot), F₂ (C-2612 × Barkhayot), F₂ (C-8284 × C-2612), and especially F₂ (C-2609 × G. stocksii M.) demonstrated a stronger expression of earliness compared to their parental forms. A considerable number of plants with early-maturing characteristics were identified in these hybrids. Hence, the research provides an important scientific and practical basis for enriching the genetic pool of local cotton varieties, optimizing the vegetation period, and developing early-maturing cotton cultivars better adapted to local environmental conditions.