Genetic Variability Studies in F2 Generations of Determinate High Yield Dry Bean Lines for Seed Yield and Yield Components

Authors : Nur Banu TEKİN, Ercan CEYHAN

Pages : 320-330

View : 41 | Download : 21

Publication Date : 2022-12-25

Article Type : Research Paper

Abstract :Dry bean is the third most important pulse crop which is widely adapted and can improve soil fertility in Türkiye. The genetic variability and association studies help in selection which would increase the yield potential of dry bean. The F2 generation and parents insert ignore into journalissuearticles values(Kınalı, Alberto, Great, Göynük, Özmen); obtained by diallel hybrid method insert ignore into journalissuearticles values(5 x 5 and 20 combinations were obtained); were sown in the experimental field of Selçuk University Faculty of Agriculture in 2021.In the research, measurement, counting, weighing and analysis of plant height, pod height, number of seeds per plant, number of seeds per pod, seed yield per plant, hundred-seed weight, protein ratio, protein yield in the plant were made. In the F2 generation, the seed yield values in plant of the hybrids are between 23.63 g/plant insert ignore into journalissuearticles values(Kınalı x Özmen); and 97.45 g/plant insert ignore into journalissuearticles values(Alberto x Kinalı);. Heterosis values of seed yield in plant range from -50.72% insert ignore into journalissuearticles values(Kınalı x Özmen); to 93.01% insert ignore into journalissuearticles values(Kınalı x Göynük);, heterobeltiosis values varies from -58.92% insert ignore into journalissuearticles values(Kınalı x Özmen); to 77.26% insert ignore into journalissuearticles values(Göynuk x Özmen);. The protein ratio of the crosses in the F2 generation ranged from 23.05% insert ignore into journalissuearticles values(Alberto x G Northern 59); to 29.12% insert ignore into journalissuearticles values(Özmen x Alberto);. Heterosis values of protein ratio are between -18.33% insert ignore into journalissuearticles values(Alberto x G Northern 59); and 7.23% insert ignore into journalissuearticles values(Özmen x Alberto);, heterobeltiosis values are between -22.27% insert ignore into journalissuearticles values(Alberto x G Northern 59); and 5.82% insert ignore into journalissuearticles values(Özmen x Alberto);. As a result of this research, a sufficient level of genetic variation was determined in the population, considering the agronomic characteristics examined. Determination of suitable parents and hybrids for green bean breeding in terms of sustainability of calcareous soils, agronomic characteristics and inheritance of these parents and hybrids were determined.
Keywords : Diallel analysis, Dry bean, GCA, Heredity, SCA

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