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The development and loss of cold resistance in timothy (Phleum pratense L.) and associated changes in carbohydrates and nitrogen as influenced by nitrogen and potassium fertilizationGrotelueschen, Ralph Dick, January 1967 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.
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