Combining ability and performance of maize hybrids under low nitrogen and drought stress
Abstract
97 words
The main objective of this study was to develop maize genotypes
that perform well under drought and low-nitrogen stresses.
Twelve parents were crossed in a half-diallel mating design.
The resultant F1 hybrids were evaluated in four environments;
optimum N and low N, well-watered and drought-stressed
environments. Also, the 12 parents and their resultant single
cross hybrids were crossed with two elite testers, and the test
crosses were evaluated under optimum and low N. The
experimental design was an alpha-lattice with two replications.
Across-site/environment analysis revealed variation among
hybrids and environments, with both GCA and SCA effects
significant.
Subjects
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