Abstract
Mazkur maqolada kungaboqar genofondining geografik xilma-xilligiga asoslangan holda boshlang‘ich namunalarning duragaylash imkoniyatlari o‘rganildi. Tadqiqotning dolzarbligi yuqori hosildor va adaptiv duragaylarni yaratishda genetik resurslardan samarali foydalanish zarurati bilan belgilanadi. Ishda Fransiya, Turkiya, Avstraliya, Rossiya, AQSH va O‘zbekiston kolleksiyalariga mansub genotiplar ishtirokida F0 duragaylar shakllantirildi. Tadqiqot metodologiyasi dala tajribasi, qo‘lda changlatish, kombinatsion tahlil va statistik ishlov asosida amalga oshirildi. Olingan natijalar ayrim genotiplarning yuqori kombinatsion faollikka ega ekanligini ko‘rsatdi. Xorijiy va mahalliy shakllarning chatishtirilishi seleksion jihatdan istiqbolli kombinatsiyalarni hosil qildi. Tadqiqot natijalari kungaboqar seleksiyasida geografik jihatdan uzoq genotiplarni jalb etish samarali strategiya ekanligini tasdiqlaydi. Muallif tomonidan genetik xilma-xillikka asoslangan duragaylash modeli taklif etildi hamda F0 bosqichida istiqbolli ota-onaviy shakllarni aniqlashning ilmiy asoslari ishlab chiqildi
References
1. Pustovoit VS. Podsolnechnik. Moskva: Kolos; 1975.
2. Skoric D, Jocic S, Lecic N, Sakac Z. Genetic possibilities for altering sunflower oil quality to obtain novel oils. Can J Physiol Pharmacol. 2008;86(4):215–221.
3. Miller JF, Fick GN. The genetics of sunflower. In: Schneiter AA, editor. Sunflower Technology and Production. Madison: ASA-CSSA-SSSA; 1997. p. 441–495.
4. Shull GH. The composition of a field of maize. J Hered. 1908;4:296–301.
5. Seiler GJ, Jan CC. Basic information. In: Seiler GJ, editor. Sunflower: Genetics, Breeding and Genomics. Boca Raton: CRC Press; 2014. p. 1–50.
6. Kaya Y, Evci G. Combining ability and heterosis in sunflower. Helia. 2009;32(50):23–36.
7. Atakisi IK, Kaya Y. Correlation and path coefficient analysis in sunflower hybrids. Turk J Agric For. 2012;36:573–581.
8. Skoric D. Sunflower breeding for resistance to abiotic stresses. Helia. 2012;35(56):1–16.
9. Jocic S, Miladinovic D, Kaya Y. Oil content and fatty acid composition in sunflower hybrids.
Euphytica. 2011;180:49–55.
10. Kaya Y, Atakisi IK. Combining ability analysis of some yield characters in sunflower. Helia.
2004;27(41):75–84.
11. Griffing B. Concept of general and specific combining ability in relation to diallel crossing systems. Aust J Biol Sci. 1956;9:463–493.
12. Singh RK, Chaudhary BD. Biometrical Methods in Quantitative Genetic Analysis. New Delhi: Kalyani Publishers; 1985.
13. Gvozdenovic S, Jocic S, Prodanovic S. Genotype × environment interaction for seed yield per plant in sunflower. Helia. 2013;36(59):55–66.
14. Perez-Vich B, Velasco L, Jan CC. Molecular genetics and genomics of sunflower. In: Seiler GJ, editor. Sunflower: Genetics, Breeding and Genomics. Boca Raton: CRC Press; 2014. p. 75–108.
15. Melchinger AE. Genetic diversity and heterosis. In: Coors JG, Pandey S, editors. The Genetics and Exploitation of Heterosis in Crops. Madison: ASA; 1999. p. 99–118.
16. Hallauer AR, Carena MJ, Miranda Filho JB. Quantitative Genetics in Maize Breeding. New York: Springer; 2010.
17. Sprague GF, Tatum LA. General vs specific combining ability in single crosses of corn. J Am Soc Agron. 1942;34:923–932.
18. Allard RW. Principles of Plant Breeding. 2nd ed. New York: Wiley; 1999.
19. Reif JC, Melchinger AE, Frisch M. Genetical and mathematical properties of similarity and dissimilarity coefficients applied in plant breeding. Crop Sci. 2005;45:1–7.
20. Skoric D. Sunflower breeding: past, present and future. Helia. 2016;39(64):1–18
This work is licensed under a Creative Commons Attribution 4.0 International License.