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Genetic analysis of seed yield, oil content and their components in safflower (Carthamus tinctorius L.)


, : Genetic analysis of seed yield, oil content and their components in safflower (Carthamus tinctorius L.). Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 60(3): 191-195

The genetic architecture of seed yield, oil content and their components was studied in a diallel cross of F1 and F2; 11 parents, representing an adequate diversity for all considered characters in safflower were used. Combining ability analysis revealed the predominance of gca [general combining ability] variance for plant height, total capitula, seed weight, seed number and seed yield in F1 and F2 and for days-to-flowering and oilcontent in F1. The analysis of components of variance indicated that the non-additive factor was the major influence on total capitula and seed yield in F1 and F2 and on plant height, seed weight and seed number in the F2 alone. The heterogeneity of the dominance component over generations was attributed to coupling phase linkage. All 4 Indian parents, namely S 144, A 1, MS 49 and 6 spl, together with G 1157 and US 104 in the exotic group, were the best combiners for seed yield and/or for one of its components while the remainder of the exotic parents were characterized by high gca effects for oil content. VFstp 1 and 'Frio' were the only parents approximating both properties of oil content and seed yield. Breeding methods, such as biparental mating followed by reciprocal recurrent selection, are suggested for the simultaneous improvement of seed yield and oil content.

US$19.90

PMID: 24276693

DOI: 10.1007/BF00264529


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