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Global patterns of genotype-environment interactions for seed yield in chickpea

OAR@ICRISAT

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Relation http://oar.icrisat.org/1554/
 
Title Global patterns of genotype-environment interactions for seed yield in chickpea
 
Creator Kumar, J
Chandra, S
Rao, B V
Miranda, J H
Vani, N
 
Subject Chickpea
 
Description Seed yield data from 16 genotypes (G) of chickpea (Cicer arietinum), tested in 49 transcontinental locations (L), were analysed using residual maximum likelihood procedure and pattern analysis methods of classification and ordination to gain an understanding of the structure of genotype × environment interactions. The genotypes included the two major types of chickpea, desi and kabuli, drawn from two main areas for chickpea adaptation, the Indian subcontinent and the Mediterranean region. Using hierarchical classification, the 16×49 GL mean data matrix was reduced to 8×9 (G-group × L-group) matrix capturing 50% of GL interaction sums of squares. The genotypes fell into three discernible groups according to their geographic proximity. The location grouping suggested the presence of two mega-environments. Subgrouping of locations showed that generally the tropical (
 
Date 2002
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/1554/1/LegRes25_2_71-84_2002.pdf
Kumar, J and Chandra, S and Rao, B V and Miranda, J H and Vani, N (2002) Global patterns of genotype-environment interactions for seed yield in chickpea. Legume Research, 25 (2). pp. 71-84.