This chapter describes the interaction of environment with genetics to generate phenotype in horses and highlights the methods for determining heritability and breeding values among horses.

This chapter presents an overview of barley genetic improvement through the induction of single gene mutations and multiple gene mutations, and through phenotypic screening and selection. Photographs of various barley mutant phenotypes (caryopsis, germination, first leaf, seedling, tillering, leaf, ...

This chapter addresses the issues that arise during the selection process made in first generation tree improvement programmes in which trees are selected solely by their superior phenotypic appearance. These include: (1) the traits and number of traits to select; (2) the relative emphasis that...

This paper discusses the freezing tolerance of lucerne, the molecular bases of cold tolerance of lucerne, the genetic improvement of cold hardiness in lucerne, field selection of genotypes that survived the winter, phenotypic selection under environmentally controlled conditions, marker-assisted...