Evaluation of yield stability of 28 bread wheat genotypes in tropical regions of Iran by using two models, AMMI and GGE

Subject Areas : Agroecology Journal

mehran khakhi ¹ , Mahdi Changizi ² , Mohsen Esmaeilzadeh Mogadam ³ , Shahab Khaghani ⁴ , Masoud Gomariyan ⁵

1 - Department of Plant Breeding
2 - Department of Plant Breeding, Faculty of Agriculture, Islamic Azad University, Arak Branch, Iran.  [e-mail]
3 - Agriculture and Natural Resources Research and Education Center, Karaj, Iran
4 - Department of Plant Breeding, Faculty of Agriculture, Islamic Azad University, Arak Branch, Iran
5 - Department of Plant Breeding, Faculty of Agriculture, Islamic Azad University, Arak Branch, Iran

Received: 2022-11-22 Accepted : 2022-11-22 Published : 2021-07-23

Keywords:  analyze,  graphic analysis,  multivariate,  plant breeding,

Abstract :

Interaction of genotype and environment is one of the most important topics and challenges of plant breeding for researchers. This research was performed on twenty-eight bread wheat (Triticum aestivum) genotypes in six different environments in two consecutive years for investigation of performance stability in 2015-2016 and 2016-2017. The experiment was conducted as a randomized complete block design with four replications. Performance and stability analysis has performed by using multivariate parametric methods (AMMI and GGE biplot). The main effect of genotype and environment on the results of AMMI analysis was significant at the 1% level. The main components of PC1 and PC2 have used for biplot. Based on parameters of AMMI model stability analysis, genotypes 25, 16, 6 and 27 were selected as stable genotypes. Based on the results of graphical analysis of genotype interactions × environment using GGE-biplot, genotypes 18, 17, 14, 15 and 20 was selected as stable genotypes, where the location of Zabul has been shown to be different from the other sites.