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Selection index for identifying high‐yielding groundnut genotypes in irrigated and rainfed environments
Author(s) -
CHANDRA S,
NIGAM S N,
CRUICKSHANK A W,
BANDYOPADHYAYA A,
HARDCRISHNA S
Publication year - 2003
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2003.tb00298.x
Subject(s) - biology , selection (genetic algorithm) , index (typography) , quartile , genotype , index selection , statistics , microbiology and biotechnology , agronomy , mathematics , genetics , computer science , confidence interval , artificial intelligence , world wide web , gene
Summary Selection of high yielding genotypes to be carried over to subsequent selection cycles in a breeding programme can sometimes be accomplished using a suitable index of secondary traits that may be relatively less sensitive to genotype‐by‐environment interactions than yield. We used the concept of correlated response to selection to measure the relative efficiency of nine selection indices. The results showed that the selection index, based on median and semi inter‐quartile range, which was actually used in identifying high yielding genotypes, had an efficiency that is comparable to the best index, the latter being a modification of the Elston index.