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Research on 16 sources of pollen fertility restoration revealed that this character was controlled in eight cases by one single dominant gene, in three cases by two complementary genes, in four cases by three complementary genes and in one case by the cumulative action of two nonallelic dominant genes. The presence of minor genes for restoration in the(More)
A low frequency of pollen fertility restorers for cytoplasmic male sterility was found within a large number of sunflower inbred lines of varied genetic and geographic backgrounds. The only source of cultivated sunflowers carrying a single dominant gene for pollen fertility restoration was the inbred line MZ-1398, selected through eight generations of(More)
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