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Contributor Notes
Received for publication 27 Apr. 1987. Names of firms or products are included for the benefit of the reader and do not imply endorsement or preferential treatment by the USDA. We thank K.P. Burnham, Biometrician, ARS/USDA, North Carolina State Univ., Raleigh, N.C., for computerized statistical analyses. 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.
Research Horticulturist.
Abstract
