Abstract
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Contributor Notes
Received for publication August 9, 1979. Mention of a trademark or proprietary product does not constitute or imply an endorsement by the U.S. Department of Agriculture to the exclusion of other suitable products.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper must therefore be hereby marked advertisement solely to indicate this fact.
Research Plant Anatomist, Fruit Laboratory, Horticultural Science Institute. The author gratefully acknowledges the cooperation of Mr. Harry Black, Catoctin Mountain Orchard, Thurmont, MD and Dr. Arthur H. Thompson, Department of Horticulture, University of Maryland, College Park, MD.
Abstract
