TY - JOUR AU - Kramer, Paul J. AB - Article PDF first page preview Close This content is only available as a PDF. © 1947 American Society of Plant Biologists This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) TI - An Automatic Apparatus to Cover and Uncover Plants in Photoperiod Experiments JF - Plant Physiology DO - 10.1104/pp.22.1.88 DA - 1947-01-01 UR - https://www.deepdyve.com/lp/oxford-university-press/an-automatic-apparatus-to-cover-and-uncover-plants-in-photoperiod-8ZrbBNw3zN SP - 88 EP - 90 VL - 22 IS - 1 DP - DeepDyve ER -