Selection index for identifying high-yielding groundnut genotypes in irrigated and rainfed environments uri icon

abstract

  • 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 of selection to measure the relative efficiency of 9 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

publication date

  • 2003
  • 2003