Heritability and Genetic Variance Components in Sunflower Single Cross Hybrids

Document Type : Research Paper

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Abstract

 In order to estimate genetic parameters in 16 Sunflower single cross hybrids obtained from crossing of 4 cytoplasmic male sterile and 4 fertility restorer lines, a North Carolina Design II was conducted using RCBD design with 3 replications at Khoy Agriculture Research Station. The result of this experiment indicated that gene action for plant height, seed number per head, first leaf area, grain yield,  harvest index of head and seed weight per head was over dominant (a>1), and in other  traits was partial dominant (a<1). Regarding to the more importance of dominant variance in controlling of these traits, selection process among inbred lines followed by crossing between the superiors is recommended for improving of them.

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References

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