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Contributor Notes
Received for publication December 29, 1979. Contribution from project 64 of the Dept. of Agronomy, Wisconsin Agr. Expt. Sta., Madison, WI 53706. Research supported by the College of Agricultural and Life Sciences, University of Wisconsin-Madison. Part of a thesis submitted by the senior author in partial fulfillment of the requirements for the MS degree.
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.
Former graduate research assistant (presently Assistant Professor of Horticulture, North Carolina State University, Raleigh, NC 27650), and Professor of Agronomy.
The authors thank Professor B. Esther Struckmeyer for her assistance in the anatomical study.
Abstract
