S. D. TanksleyDepartment of Vegetable Crops, University of California, Davis, CA 95616
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R. A. Jones
R. A. JonesDepartment of Vegetable Crops, University of California, Davis, CA 95616
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Contributor Notes
Received for publication September 26, 1980.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.