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Avtonomov, Viktor, Ravshanov, Azam, Rashidova, Dilbar, Mamedov, Normuxammad, Yakubov, Muzaffar, Sharipov, Shuhrat, Jabborov, Jamoliddin, Karimov, Sharofiddin, Jalolov, Xurshid. (1404). Evaluation and development of F1 hybrids tolerant to Verticillium dahliae Klebhan. فیزیولوژی و بیوتکنولوژی آبزیان, (), 1-11. doi: 10.22124/cjes.2025.9075
Viktor Avtonomov; Azam Ravshanov; Dilbar Rashidova; Normuxammad Mamedov; Muzaffar Yakubov; Shuhrat Sharipov; Jamoliddin Jabborov; Sharofiddin Karimov; Xurshid Jalolov. "Evaluation and development of F1 hybrids tolerant to Verticillium dahliae Klebhan". فیزیولوژی و بیوتکنولوژی آبزیان, , , 1404, 1-11. doi: 10.22124/cjes.2025.9075
Avtonomov, Viktor, Ravshanov, Azam, Rashidova, Dilbar, Mamedov, Normuxammad, Yakubov, Muzaffar, Sharipov, Shuhrat, Jabborov, Jamoliddin, Karimov, Sharofiddin, Jalolov, Xurshid. (1404). 'Evaluation and development of F1 hybrids tolerant to Verticillium dahliae Klebhan', فیزیولوژی و بیوتکنولوژی آبزیان, (), pp. 1-11. doi: 10.22124/cjes.2025.9075
Avtonomov, Viktor, Ravshanov, Azam, Rashidova, Dilbar, Mamedov, Normuxammad, Yakubov, Muzaffar, Sharipov, Shuhrat, Jabborov, Jamoliddin, Karimov, Sharofiddin, Jalolov, Xurshid. Evaluation and development of F1 hybrids tolerant to Verticillium dahliae Klebhan. فیزیولوژی و بیوتکنولوژی آبزیان, 1404; (): 1-11. doi: 10.22124/cjes.2025.9075

Evaluation and development of F1 hybrids tolerant to Verticillium dahliae Klebhan

Caspian Journal of Environmental Sciences
مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از تاریخ 02 مهر 1404
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22124/cjes.2025.9075
نویسندگان
Viktor Avtonomov* 1؛ Azam Ravshanov1؛ Dilbar Rashidova1؛ Normuxammad Mamedov2؛ Muzaffar Yakubov3؛ Shuhrat Sharipov3؛ Jamoliddin Jabborov4؛ Sharofiddin Karimov5؛ Xurshid Jalolov6
1DSc., Laboratory at Cotton Breeding, Seed Production and Agrotechnologies Research Institute, Tashkent, Uzbekistan
2PhD, Student at the Cotton Breeding, Seed Production, and Agrotechnologies Research Institute, Tashkent, Uzbekistan
3PhD, Researcher at Cotton Breeding, Seed Production and Agrotechnologies Research Institute, Tashkent, Uzbekistan
4Researcher at a Cotton Breeding, Seed Production and Agrotechnologies Research Institute, Tashkent, Uzbekistan
5PhD, Cotton Breeding, Seed Production and Agrotechnologies Research Institute, Tashkent, Uzbekistan
6DSc, Researcher at Cotton Breeding, Seed Production and Agrotechnologies Research Institute, Tashkent, Uzbekistan
چکیده
The present study focuses on evaluating cotton, Gossypium hirsutum L. varieties and their hybrids for resistance to Verticillium dahliae Kleb., one of the major pathogens causing wilt disease. Five varieties of different genetic origins—SB-6, C-6541, Namangan-34, C-6545, and Namangan-77—were used as initial material for hybridization and further analyzed along with their F1 and F2 generations. Resistance was assessed by two complementary approaches: an enzyme-linked immunosorbent assay (ELISA) test system and a six-point field assessment method. Both methods provided consistent and comparable results, confirming their reliability for evaluating resistance to V. dahliae. The most resistant parental varieties were Namangan-34, Namangan-77, and C-6541. Among F1 hybrids, high levels of resistance were observed in the combinations Namangan-77 × C-6541, Namangan-34 × SB-6, C-6541 × SB-6, C-6541 × C-6545, C-6545 × C-6541, and SB-6 × C-6541. Analysis of the dominance index (hp) indicated adverse effects of both complete and incomplete dominance for susceptibility traits in several hybrid combinations, suggesting their potential use in breeding programs for developing resistant varieties. In the F2 generation, combinations such as Namangan-34 × C-6545, Namangan-34 × SB-6, C-6541 × Namangan-77, and SB-6 × Namangan-77 exhibited lower mean susceptibility to V. dahliae. Variation series analysis also revealed individual plants with significantly greater resistance than either parent. Heritability coefficient (h²) analysis demonstrated genotypic variability ranging from weak to strong expression across hybrids. These findings highlight promising hybrid combinations and confirm the effectiveness of combined biochemical and field assessments for breeding cotton resistant to V. dahliae.
 
کلیدواژه‌ها
Cotton؛ Medium-fiber؛ Variety؛ Hybrid؛ Resistance؛ Verticillium dahliae Kleb
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تعداد مشاهده مقاله: 14


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