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Contributor Notes
Received for publication August 25, 1976. Contribution from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel. 1976 Series, No. 204-E.
Most of the study was carried out in the Department of Agricultural Botany, Faculty of Agriculture, The Hebrew University of Jerusalem, and I wish to thank Prof. D. Roller for granting the facilities and permission to work. My sincere thanks are extended to Dr. A. Hadas for his advice and fruitful discussions, and to Mrs. Rahel Shaked for her able assistance. I am particularly grateful to Prof. M. Negbi for his interest and helpful comments.
Abstract
