Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 173

Heritability estimates are useful for breeding quantitative traits. The major applications of heritability are:

1 To determine whether a trait would benefit from breeding. If especially the narrow sense heritability for a trait is high, it indicates that the use of plant breeding methods will likely be successful in improving the trait of interest.

2 To determine the most effective selection strategy to use in a breeding program. Breeding methods that use selection based on phenotype are effective when heritability is high for the trait of interest.

3 To predict gain from selection. Response to selection depends on heritability. A high heritability would likely result in high response to selection to advance the population in the desired direction of change.