pure breeding line

pure breeding line

or

true breeding line

a strain of individuals that are all homozygous for the genes being considered, so that their progeny show no variation in those genes. see BREEDING TRUE.
References in periodicals archive ?
4:6] generation with the advanced pure breeding line GA 962533.
Researchers have traditionally had two methods to produce a pure breeding line.
Having pure breeding lines is essential for producing new disease-resistant varieties of oats, because it means progeny will also be pure.