[Dependence of the combining ability of mutant sugar beet plants on their phenotype].

Abstract excerpt

Repetitive gametic selection for a higher frequency of the Adh1-S semilethal mutant allele of the alcohol dehydrogenase (ADH) gene yielded viable homozygotes Adh1-SS. The plants varied in phenotype from weak mutant to nearly normal (restored). Phenotypically different plants were individually tested for combining ability. This parameter was high in plants with the mutant phenotype and tended to decrease, rather...

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