Indexing

Evaluation of Heterotic Potential of Bread Wheat Hybrids under Very Late Sown Conditions

Author: Anita Burdak and Ved Prakash

PDF Download PDF

Abstract

The objective of the current study was to determine heterotic potential of various yield and other contributing traits in a 10 × 10 diallel set of different bread wheat genotypes. The experiment was conducted in randomized block design with three replications during Rabi 2021-22. Results of this research revealed that significant differences observed among the genotypes, parents and generation for all studied traits. Some crosses such as Raj 3765 × PBW 343, Raj 3077 × Raj 3765 and PBW 343 × WH 1021 showed maximum heterosis and PBW 343 × HD 2967, Raj 4079 × UP 2425 and PBW 343 × UP 2425 revealed maximum heterobeltiosis for grain yield and most of other contributing traits. These crosses recognized as desirable which may produce the maximum level of transgressive segregants and can be used for yield potential in bread wheat.

Keywords

Heterosis, diallel crossing, yield potential, bread wheat

Conclusion

The significant differences observed among the genotypes, parents and generation for all studied traits, revealed that characters displayed the presence of sufficient genetic diversity among the selected parents and these parents have worth to be evaluated for further wheat breeding programs. Highest inbreeding depression for grain yield were observed in DBW 17 × HD 2967, HD 3059 × WH 1021 and HD 2967 × UP 2425, indicating F2 plants produced more grain yield as compared to F1 hybrids of bread wheat. For grain yield/plant the promising crosses identified on the basis of heterosis and heterobeltiosis (heterosis over better parent) were PBW 343 × HD 2967, Raj 4079 × UP 2425, PBW 343 × UP 2425, Raj 3765 × PBW 343, Raj 3077 × Raj 3765 and PBW 343 × WH 1021. These crosses have been proposed to be advantageous for wheat genotypes improvement that can produce the maximum level of transgressive segregants and may be used in hybrid development of wheat for yield potential.

References

-

How to cite this article

Anita Burdak and Ved Prakash (2023). Evaluation of Heterotic Potential of Bread Wheat Hybrids under Very Late Sown Conditions. Biological Forum – An International Journal, 15(9): 698-706.