Abstract
SummaryFertility restoring factors have been reported to influence plant morphology in a number of genotypes when in Texas sterile cytoplasm. Results from the present study indicate an influence only in specific genotypes when the restoring source in a normal cytoplasm is used as the male for normal and cytoplasmic male sterile females.Cytoplasmic male sterile and restored (in Texas sterile cytoplasm) lines and crosses differed in morphological traits, yield, and grain moisture from the normal counterpart. The counterparts differed least for average ear height and grain moisture. Yields of lines and hybrids in “T” cytoplasm were reduced by yellow leaf blight, Phyllosticta sp. A “multiplasm” approach for the production of hybrid seed by the male sterile‐restorer method is suggested for pests specific to a cytoplasm.
Published Version
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