Abstract
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Contributor Notes
Received for publication May 9, 1981.
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.
Present Address: Dept. of Agr. Economics, University of Maryland, College Park, MD, 20742.
Professor, Dept. of Horticulture, University of Maryland, College Park, MD 20742.
Plant Physiologist, Fruit Laboratory, SEA, U. S. Department of Agriculture, Beltsville, MD 20705.
Mention of a trademark name or a proprietary product does not constitute a guarantee or warranty of the product by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may be suitable.
Abstract
