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In page Hillel Oppenheimer:

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In 1931, he commenced working as a physiologist in the Department of Botany at the Hebrew University of Jerusalem. He helped found the Faculties of Natural Science and Agriculture at the university, and was their first lecturer on the subjects of anatomy and physiology of the plant. From 1933 to 1941, Oppenheimer headed the Department of Physiology and Genetics of the Agricultural Research Station in Rehovot. From 1941 to 1953, he was head of the department for the growth of citrus tree and agricultural botany, being appointed as a professor in 1949. Oppenheimer was dean of Faculty of Agriculture at the Hebrew University from 1953 to 1954.