Genotype × Environment Interaction and Fruit Yield Stability in Tomato Hybrids under Kashmir Valley conditions using Additive Main Effects and Multiplicative Interaction (AMMI) Model

Author: Ummyiah, H.M., Zeenat Fayaz, Baseerat A., Shehnaz M., M. Mudasir Magray and Gazala N.

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Abstract

Tomato is the second most important vegetable crop in the world due to its significant nutritive value. The yield and quality of the fruits are highly influenced by the environment due to a phenomenon known as genotype by environment (G × E) interaction which confounds selection efficiency. Hence, plant breeding requires a multi-environment study to analyze the response of genotypes to different conditions. At three locations in Kashmir valley viz., Experimental fields of the Division of Vegetable Science, Sher-e- Kashmir University of Agricultural Sciences & Technology of Kashmir, Krishi Vigyan Kendra (KVK), Malangpora, and Regional Research Station & Faculty of Agriculture (RRS & FOA), Wadura over two years, seventeen tomato hybrids (Solanum lycopersicum Mill.) were examined with the goal of comparing yield performance and assessing adaptation using Additive Main Effects and Multiplicative Interaction model (AMMI). The three locations are designated as E1, E2 and E3 respect

Keywords

Biplot, Tomato, Stability, AMMI analysis, PCA

Conclusion

The AMMI analysis model for tomato fruit yield found significant variation for main and interaction factors, showing that there is a lot of variation between hybrids, locations, years, and their interactions. For the plant breeder, the presence of strong G×E interaction in hybrids can be both an opportunity and a challenge. Using 54 degrees of freedom, three significant IPCAs were recovered from the interaction component in this investigation, which accounted for 98.139 percent of the total GEI SS. H3 and 7 (Shalimar tomato hybrid-1, PS- 255) were the most stable and provide the highest yields, whereas H4 and H12 (Shalimar tomato hybrid-2, Bhaskar Improved) were less stable but provide the highest yields. Among the hybrids, H9 and 17 (Ajeet and Swaraj-1516) were the best suited hybrids to most environments, with IPCA values near to zero, showing their stability across all environments. Further, these hybrids can be evaluated in more environments to assess their perfo

References

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How to cite this article

Ummyiah, H.M., Zeenat Fayaz, Baseerat A., Shehnaz M., M. Mudasir Magray and Gazala, N. (2021). Genotype x Environment Interaction and Fruit Yield Stability in Tomato Hybrids under Kashmir Valley conditions using Additive Main Effects and Multiplicative