Combining Ability in a 7 × 7 Half-Diallel Cross for Plant Height, Yield and Yield Components in Bread Wheat (Triticum aestivum L.)

Authors : Mustafa YILDIRIM, Hasan GEZGINC, Ali PAKSOY

Pages : 312-321

View : 17 | Download : 6

Publication Date : 2014-11-10

Article Type : Research Paper

Abstract :The main objective of this study was to estimate general insert ignore into journalissuearticles values(GCA); and specific combining ability insert ignore into journalissuearticles values(SCA); for the plant height insert ignore into journalissuearticles values(PH);, grain yield insert ignore into journalissuearticles values(GY); and yield component in wheat. A 7 × 7 half-diallel cross among bread wheat genotypes insert ignore into journalissuearticles values(Adana, Ceyhan, Dariel, Genç, Golia, Pehlivan and Seyhan); was analyzed. Yield components include spike length insert ignore into journalissuearticles values(SL);, spikelets spike-1 insert ignore into journalissuearticles values(SS);, grains spike-1 insert ignore into journalissuearticles values(GS);, fertile tillers plant-1 insert ignore into journalissuearticles values(FT); and thousand kernel weight insert ignore into journalissuearticles values(TW);. The effects of GCA and SCA were found highly significant. The GCA / SCA ratios indicated that all traits are under additive gene effect. However, according to gene effects of correlations insert ignore into journalissuearticles values(GEr);, non-additive gene effect was found for the TW, while the other traits were similar to GCA / SCA. According to inter-trait correlation data, negative relationship at 0.01 level was found between PH and GS, positive relationship at 0.01 level was found between SS and GS; and SS and SL; and GS and GY, positive relationship at 0.05 level was found between PH and TW; SS and SL; FT and SS; and FT and GY. According to GCA effects, Golia and Pehlivan were observed to be the best combiner parents. The results of this study may be beneficial for plant breeders aiming to develop new genotypes.
Keywords : Yağmurlama sulama, Enerji tüketimi, Sulama pompaları, Konya Ovası