Combining ability for various parameters in sunflowers as a classical breeding approach for superior hybrid development
Combining ability for various parameters in sunflowers as a classical breeding approach for superior hybrid development
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Authors
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YUKTA SHARMA
Department of Plant Breeding and Genetics, College of Agriculture, Punjab Agricultural University, Ludhiana, Punjab -141004, India
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VINEETA KAILA
Department of Plant Breeding and Genetics, College of Agriculture, Punjab Agricultural University, Ludhiana, Punjab -141004, India
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PANKAJ SHARMA
Department of Plant Breeding and Genetics, College of Agriculture, Punjab Agricultural University, Ludhiana, Punjab -141004, India
Keywords:
Combining ability, GCA, Hybrid production, Sunflower, SCAAbstract
An experiment for estimating the combining ability in sunflower for various agronomic traits and oil content was carried out in 2021-22 at Punjab Agricultural University, Ludhiana, in which 91 hybrids were studied along with their parents, i.e., seven CMS lines and 13 high oleic testers. Significant positive and negative variations were noticed in GCA and SCA for characters like days to flowering initiation, fifty per cent flowering, plant height, head diameter, seed yield per plant and oil content. Dominant gene action was predominant for all these characters and high SCA was observed for high GCA × high GCA for flowering initiation, head diameter, and seed yield per plant and low GCA × high GCA for fifty per cent flowering, plant height and both high GCA × high GCA and low GCA × low GCA for oil content.
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References
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