Estimation of G x E interaction by AMMI model in some elite pigeonpea [Cajanus cajan (L.) Millspaugh] genotypes

  • Amit Kumar Gaur Department of Genetics and Plant Breeding, GBPUAandT, Pantnagar, Uttarakhand 263 145
  • S. K. Verma Department of Genetics and Plant Breeding, GBPUAandT, Pantnagar, Uttarakhand 263 145
  • R. K. Panwar Department of Genetics and Plant Breeding, GBPUAandT, Pantnagar, Uttarakhand 263 145
  • R. K. Sharma Department of Genetics and Plant Breeding, GBPUAandT, Pantnagar, Uttarakhand 263 145
Keywords: AMMI, G x E interaction, pigeonpea, stability

Abstract

The G x E interaction was studied in pigeonpea genotypes using AMMI model. The results indicated that main effects as well as G x E interaction effects were significant for most of the traits. Major portion of the G x E was contributed by the genotypes. AMMI model having two principle components axis was found as the best predictive model in this study. AMMI biplots, ASV and YSV indicated PA 620 to be the most stable genotype for seed yield and number of secondary branches per plant during all the three years of testing.
Published
2020-05-25
Issue
Vol 80 No 02 (2020): Indian Journal of Genetics and Plant Breeding
Section
Research Article

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