Indexing

Heterosis Studies for Yield and Yield contributing Components in Sunflower (Helianthus annuus L.)

Author: S.C. Nagrale, S.B. Sakhare, P.V. Yadgirwar, S.S. Nichal and P.V. Jadhav

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Abstract

The present experimental material consist of four CMS lines and nine testers which were crossed in line × tester mating design to estimate the average heterosis, heterobeltosis and standard heterosis over the check LSFH171 for seed yield and Its important yield contributing traits in sunflower. The resulting 36 hybrids and 13 parents along with check viz., LSFH-171 were evaluated in randomized block design with three replications at Agricultural Research Station, Yavatmal. A broad range of heterotic variation observed for all the five yield and yield contributing parameters and it was ranged from -17.94% to 195.69%, 30.51% to 132.42% and -40.61% to 68.90% over the average heterosis, heterobeltiosis and standard heterosis over check LSFH-171 respectively for seed yield per plant. 28, 20 and 10 hybrids displayed positive and significant heterosis over the mid parent, better parents and standard check (LSFH-171) respectively and top three hybrids viz., ARM – 250 A × PKV- 103 R, CMS- 17 A × PKV-106 R and ARM – 250 A × PKV 106 R manifested highest magnitude heterosis over the mid parent, better parents and standard check (LSFH-171) for seed yield and these hybrids also showed significant heterosis for head diameter, 100 seed weight and seed filling percentage. Hence, these identified hybrids could be use for exploitation of heterosis after evaluating and testing with large multilocations trials.

Keywords

Sunflower, heterosis, hybrid, line × tester, yield

Conclusion

In the present study top three hybrids ARM – 250 A × PKV- 103 R, CMS- 17 A × PKV-106 R and ARM – 250 A × PKV 106 R were found to be highest heterotic over the checks LSFH-171 and also showed highest magnitude of average heterosis and heterobeltosis. Hence, these hybrids can be commercially exploited using heterosis breeding after its evaluation in multilocation trials.

References

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How to cite this article

S.C. Nagrale, S.B. Sakhare, P.V. Yadgirwar, S.S. Nichal and P.V. Jadhav (2023). Heterosis Studies for Yield and Yield contributing Components in Sunflower (Helianthus annuus L.). Biological Forum – An International Journal, 15(6): 25-29.