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Glossary
Sections:
Introduction
Principles of inheritance
Genotypic variation
Other forms of heritable variation
Quantitative variation and heritability
Quantitative variation
Quantitative variation, contd.
Additive genes
Dominant gene action
Epistasis
Heritability
Genotype x environment (GxE) interaction
Heterosis
Inbreeding depression
Novel sources of genetic variation
The practice of plant breeding
Breeding methods
Plant Breeders' rights
New technologies for plant breeding
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Heterosis

Heterosis is an important concept for hybrid breeding. The level of superiority of the heterozygous hybrid between two inbred lines can be 20% or greater.