title: The influence of composite traits on genotype by environment relations.
abstract: In breeding for multiple trait value functions, the existence of genotype-by-environment interaction effects can vastly complicate the designation of optimum sets of genotype-environment pairings into Target Populations of Environments. In this paper it is shown that even in the absence of any changes in genotypic ranking over environments on a trait-by-trait basis, it is possible to generate changes in genotypic ranking in value in different environments. This is shown to be true even for linear value functions in a case example in pine breeding.
authors.affiliation: Southeastern Forest Experiment Station, Genetics Department, North Carolina State University, Box 714, 27695-7614, Raleigh, NC, USA.
authors.forename: G
authors.initials: G
authors.lastname: Namkoong