Generation Mean Analysis for Fruit Yield and Component Traits in Tomato (Solanum lycopersicum L.)

Author: Pragati J. Prajapati, J.N. Patel, Parthik Patel and N.A. Patel

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Abstract

Information of gene action governing the yield and its components is very crucial for formulating sound breeding programmes. In order to generate this information for tomato lines, the present investigation was carried out at Main Vegetable Research Station, Anand Agricultural University (AAU), Anand during kharif-rabi 2022-23. The experimental material comprised of six families developed from ten diverse lines. Each family is composed of six generations viz., P1, P2, F1, F2, B1& B2 evaluated with three replications in compact family block p;design (CFBD) to perform generation mean analysis. Results of simple scaling tests and joint scaling tests revealed adequacy of three parameter model in one out of eighty-four possible cases and adequacy of six parameter model in eighty two out of eighty-four possible cases.

Keywords

Tomato, Generation mean analysis, Scaling test, Gene action, Gene interaction

Conclusion

The present investigation revealed that main effects viz., additive and dominance along with additive × additive (i), additive × dominance (j) and dominance × dominance (l) were present at more or less extent indicating the importance of these interactions for the inheritance of the various traits. The result of epistatic gene effects for fruit yield and its related traits in different cross combinations revealed that recurrent selection and bi-parental mating between desirable segregants followed by selection would be profitable for development of desirable hybrids/lines/varieties.

References

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How to cite this article

Pragati J. Prajapati, J.N. Patel, Parthik Patel, and N.A. Patel (2023). Generation Mean Analysis for Fruit Yield and Component Traits in Tomato (Solanum lycopersicum L.). Biological Forum – An International Journal, 15(5): 230-237.