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Combining Ability In Sunflower Helianthus annuus L. | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 11, Issue 1, 2011, Pages 43-53 | ||
| Abstract | ||
| To aim of estimation the general and specific combining abilities in sunflower , selected (18) inbred lines (S8) male fertile , which was planting by alternative with three female lines ( male cytoplasmic sterility to produced (54) F1s seed , by using factorial mating design. The experiment was arranged in a Randomized Complete Block Design (R.C.B.D) with three replications. The results showed significant difference among the male lines , female lines and the interaction between male x female for all character . The female (IF-CmsI) and male lines (IF-R6) showed highest positive GCA effect for grain yield (9.42) and (15.29) respectively and yield component for the other traits . The hybrids (IF-R6 X IF-Cms2) , (IF-R9 X IF-Cms2) and (IF-R13 X IF-Cms3) appeared superior significant positive SCA effect for seed yield to reach (19.07 , 21.24 and 20.3) respectively .and the yield component for other character . The largest proportional contribution of male and female lines presented for most of traits which was indicating the predominate role of additive component control for inheritance this characters excepted number of leaf / plant which was male X female interaction exhibited the greatest contribution , suggesting the presence of non-additive genes effect . Key world: GCA, SCA. Sunflower | ||
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