Vernalization and photoperiodism Murneek, Andrew Edward, 1888- contributor text book Waltham, Mass Chronica Botanica Co 1948 1948
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ENG Photoperiodism Vernalization QK745 .V47 581.1341 Lotsya, a biological miscellany, v. 1 https://www.biodiversitylibrary.org/bibliography/5974 806722 48010411 10.5962/bhl.title.5974