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Productivity in Plants: Physiological Aspects of Crop Yield . Proceedings of a symposium, Lincoln, Neb., Jan. 1969. Jerry D. Eastin, F. A. Haskins, C. Y. Sullivan, and C. H. M. van Bavel, Eds. American Society of Agronomy and Crop Science Society of America, Madison, Wis., 1969. xx, 396 pp., illus. $10; to members of the societies, $8.
Science, 1971 openaire +1 more source