Studies on Transgressive Segregation for Pod Yield and Yield Attributes in F2 Segregating Populations of four Groundnut Crosses

Author: K. Amarnath* , M. Reddisekhar , K. John, P. Sudhakar4 and K. Viswanth

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Abstract

The present study was carried out to recognize desirable transgressive segregants in four crosses viz., Kadiri-6 × CS-19, Narayani × J-11, ICGV-07262 × TCGS-1862 and ICGV-07262 × TCGS-2149 of groundnut for days to 50% flowering, days to maturity, hundred pod weight, sound mature kernel %, shelling percentage, pod yield per plant and kernel yield per plant. Transgressive segregation was observed for all the characters in all the four crosses under study. The cross ICGV-07262 × TCGS-2149 registered highest number of transgressive segregants for pod yield per plant (107 plants), days to maturity (146 plants), hundred pod weight (103), shelling percentage (76 plants) and kernel yield per plant (101 plants). While the cross ICGV-07262 × TCGS-1862 recorded relatively more number of transgressive segregants for days to 50% flowering (97 plants) and harvest index (122 plants). This indicates that the parents possess divergent alleles governing respective traits from which all desirable a

Keywords

Groundnut, Transgressive segregants, pod yield and yield attributes.

Conclusion

As pod yield and other yield components showed transgressive segregation in all the four crosses it can be inferred that the parents possess divergent alleles for yield and its associated characters from which it could be inferred that there is a lot of scope to bring all desirable alleles into a single genotype through rigorous selection and evaluating the segregants to arrive at a desirable plant type through selection in later generations.

References

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How to cite this article

K. Amarnath, M. Reddisekhar, K. John, P. Sudhakar and K. Viswanth (2022). Studies on Transgressive Segregation for Pod Yield and Yield Attributes in F2 Segregating Populations of Four Groundnut Crosses. Biological Forum – An International Journal, 14(1