AMMI based simultaneous selection for yield and stability of chickpea genotypes in south zone of India

DOI: 10.18805/LR-4026    | Article Id: LR-4026 | Page : 742-745
Citation :- AMMI based simultaneous selection for yield and stability of chickpea genotypes in south zone of India.Legume Research-An International Journal.2020.(43):742-745
Hemant Kumar, G.P. Dixit, A.K. Srivastava and N.P. Singh bhu.avinash@gmail.com
Address : ICAR-Indian Institute of Pulses Research, Kanpur-208 024, Uttar Pradesh, India.
Submitted Date : 11-04-2018
Accepted Date : 17-08-2018

Abstract

Multi-environmental trials have generally significant genotype main effects and genotype x environment interaction (GEI) effect and, therefore different univariate and multivariate stability methods have been used to study the GEI.  Among the multivariate methods, the additive main effects and multiplicative interaction (AMMI) analysis is widely used for GEI investigation. This method has been effective because it captures a large portion of the GEI sum of squares; it clearly separates main and interaction effects and often provides meaningful interpretation of data to support a breeding program such as genotypic stability. Based on the AMMI model, a stability index has been used to rank the genotypes. This index is the weightage of stability and yield component and higher the index value better is the genotypes. The index of 40 promising chickpea genotypes were calculated with two different weight of yield (50% and 75%) and stability component (50% and 25%). These genotypes were evaluated at seven locations viz. Hiriyur, Nandyal, Coimbtore, Dharwad, Lam, Bijapur and Gulbarga representing the south zone of All India Coordinated Research Project on Chickpea program during 2015-16. Ranking of genotypes are done based on two different weight of stability and yield component.

Keywords

AMMI Chickpea Selection indices Stability.

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