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Contributor Notes
Received for publication 6 Apr. 1987. Paper no. 87-10-3-50. We acknowledge Paul Cornelius, Professor of Agronomy and Statistics, Kentucky Agricultural Experiment Station, for his statistical assistance. This research was supported in part by the Tennessee Valley Authority. SAS is the registered trademark of SAS Institute, Cary, N.C. Mention of the name of a propriety product is not to be construed as a recommendation of the product as superior to others which may be available. 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.
Extension Professor of Horticulture.
Horticulture Research Specialist.
Associate Extension Professor of Agronomy.
