1Received for publication Nov. 21, 1981. Research supported by Color-Treme Co., Clyman, Wis., a Division of Beatrice Food Co., and by the College of Agricultural and Life Sciences, University of Wisconsin, Madison. This investigation is a portion of a thesis presented in partial fulfillment of the requirements for the PhD degree.
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2Present address: Dessert Seed Co., P.O. Box 9008, Brooks, OR 97305.