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Journal of Applied Sciences
Year: 2002  |  Volume: 2  |  Issue: 12  |  Page No.: 1102 - 1107

The use of Induced Micro-Mutations for Quantitative Characters after EMS and Gamma Ray Treatment in Durum Wheat Breeding

Mehmet Ali Sakin    

Abstract: Genetic variability resulted from micro-mutations allows breeding of quantitative characters and remains through next generations. The aim of the study was to : (i) determine induced variability of yield and the other quantitative characters such as plant height, number of fertile tiller, spike length, after selection in single plant grain yield and (ii) evaluate the applicability of micro-mutations in durum wheat breeding. Test populations were M2 and M3 generations of durum wheat variety called “Sofu” resulting from EMS (Ethyl Methane Sulphonate) for 8 hours at 24 °C without presoaking or gamma ray treatments. Base populations were constructed by selecting normal appearing single plants from the M2 generations, plants, selected based on the micro-mutation procedures, were grown as M3 generate. The experiments were designed in the randomized complete blocds with 3 replications. Each micro-mutant population was grown separately from each other. Estimated variation of segregating generations increased depending on the character investigated and the mutagen used. The high heritability estimates in response to selection demonstrated that the part of the induced variability remains in generations. As a result of expected genetic advances in the M3 generation that obtaining plants with higher yield by selection is possible. Micro-mutations related to yield and quantitative characters can potentially be used in plant breeding.

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