A Comparison of Genie Male-Sterile and Cytoplasmic Male-Sterile Four-Way Sugarbeet Hybrids1
- J. C. Theurer,
- G. K. Ryser and
- Myron Stout2
In 1966 and 1967 comparison was made of 12 four-way sugarbeet (Beta vulgaris L.) hybrids having a cytoplasmic male sterile X pollen restorer male parent, and an equivalent number of hybrids of the same parental lines having a genie male sterile X pollen restorer parent. The genie male sterile X pollinator crosses had a higher sugar percentage and a lower impurity index than cytoplasmic male sterile X pollinator hybrids. Yield of gross sugar and tonnage were similar for the two males averaged over all crosses. The performance of specific male and female parents indicated that good combining ability between cytoplasmic male sterile X restorer pollinators may not necessarily show how equivalent genie male sterile X pollinator crosses will behave.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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