IQLIMGA CHIDAMLI QISHLOQ XOʻJALIGI STRATEGIYASI SIFATIDA VERTICILLIUM DAHLIAE KLEBHAN'GA CHIDAMLI F1 GʻOʻZA DURAGAYLARINI YARATISH VA BIOKIMYOVIY SKRINING QILISH
Maqola yon paneli
Maqola asosiy qismi
Abstrak
Maqolada biokimyoviy va dala baholash usullaridan foydalangan holda Verticillium dahliae Kleb. patogeniga chidamli gʻoʻza navlari va duragaylarini aniqlashga qaratilgan laboratoriya hamda dala tadqiqotlari tahlili keltirilgan. Tadqiqotda duragaylash uchun boshlangʻich material sifatida G. hirsutum turining turli genetik kelib chiqishga ega SB-6, S-6541, Namangan-34, S-6545 va Namangan-77 navlari ishlatilgan. Ushbu navlar va ularning F1 duragaylari laboratoriya hamda dala sharoitida V. dahliae ga chidamliligi boʻyicha baholandi. Qiyosiy tahlil natijalari ikkala usul — biokimyoviy va dala baholash — amalda bir xil ma’lumot berishini koʻrsatdi, bu esa ularning ishonchliligini tasdiqlaydi va dala baholash natijalarini qayta tekshirishga zarurat yoʻqligini bildiradi. Baholash natijalariga koʻra, V. dahliae ga eng chidamli navlar sifatida Namangan-34, Namangan-77 va S-6541 aniqlandi. Shuningdek, oʻrganilgan F1 duragaylari orasida quyidagi chatishtirish kombinatsiyalari istiqbolli chidamlilik namoyon etdi: Namangan-77 × S-6541, Namangan-34 × SB-6, S-6541 × SB-6, S-6541 × S-6545, S-6545 × S6541 va SB-6 × S-6541. Olingan natijalar biokimyoviy va dala tadqiqotlarini birgalikda qoʻllash chidamli genotiplarni aniqlashning ishonchli yondashuvi ekanligini, aniqlangan chidamli nav va duragaylar esa V. dahliae ga chidamliligi yuqori gʻoʻza yaratishda qimmatli seleksiya materiali boʻlib xizmat qilishini koʻrsatadi.
Maqola tafsilotlari
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