Korunga (Onobrychis sativa Lam.) Mutasyon Islahında Kullanılabilecek Uygun Gama (60Co) Dozunun Belirlenmesi
Anahtar Kelimeler:Sainfoin, Gamma Ray Dose, Mutation Breeding, Emergence Rate, Seeding Growth
This study was counducted to determine the proper dose of gamma irradiation for the mutation breeding program of Sainfoin (Onobrychissativa Lam.) in Ankara the ecological condition in 2009.In the research, some characteristics which is emmergence rate (%), shoot length (cm), root length (cm), shoot fresh weight (mg/plant) and shoot dry weight (mg/plant) of M1 plants of Sainfoin obtained from Cobalt-60 (60Co) by irradiation of the seeds with different doses of gamma rays(0, 200, 300, 400, 500, 600, 700, 800 Gy) were studied. Experiment arranged in the split plot design with three replications.Results revealed that the investigated varieties showed different responses to gamma doses. The results of the study showed that germination rate of the seeds was influenced by the application of gamma irradition. In the research, some characteristics emmergence rate (%), shoot length (cm), root length (cm), shoot fresh weight (mg/plant) and shoot dry weight (mg/plant) were negatively influenced by 700 and 800 Gy doses of gamma rays.From the result of this study, it can be concluded that gamma radiation doses should be determined for each cultivar in Sainfoin to get the generation of new variation sources for breeding programs, but the gamma radiation doses between 400 and 600 Gy may be used without any changes in viability.