Inheritance of leaf angle and plant height in sunflower (Helianthus annuus L.)
2003
Hladni, N.(Naucni institut za ratarstvo i povrtarstvo, Novi Sad (Serbia)) | Skoric, D.(Naucni institut za ratarstvo i povrtarstvo, Novi Sad (Serbia).) | Kraljevic-Balalic, M.(Poljoprivredni fakultet, Novi Sad (Serbia))
Mode of inheritance and effect of genes for leaf petiole angle and plant height have been analyzed in the F1 and F2 generations of a 6x6 partial diallel cross. The tested genotypes differed significantly in mean value of the analyzed characteristics. The expected regression line intersected the Wr axis above the origin indicating preponderance of partial dominance in the inheritance of leaf petiole angle and plant height in both generations. Among the tested inbred lines, NS-204B contained the largest number of dominant genes, NS-22B had equal number of dominant and recessive genes and NS-BD contained the largest number of recessive genes for the two characteristics. Results of this study may find application in developing models of hybrids with modified architecture, suitable for high stand densities that may bring direct increases in seed yield and oil content.
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