This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Web of Science (42) Citing Articles via Google Scholar Google Scholar Articles by Kasperbauer, M. J. Articles by Peaslee, D. E. Search for Related Content PubMed PubMed Citation Articles by Kasperbauer, M. J. Articles by Peaslee, D. E. Agricola Articles by Kasperbauer, M. J. Articles by Peaslee, D. E.

Articles

Morphology and Photosynthetic Efficiency of Tobacco Leaves That Received End-of-Day Red and Far Red Light during Development ¹

^a Agricultural Research Service, United States Department of Agriculture, and Department of Agronomy, University of Kentucky, Lexington, Kentucky 40506

Shaded leaves in plant canopies receive a higher proportion of far red relative to red light than is received by unshaded leaves. Brief end-of-day irradiations with red or far red light, acting through the phytochrome system, reversibly control morphological development of tobacco plants. Leaves that received far red light for 5 minutes at the end of each day during development were longer and narrower than those that received end-of-day red light. The far red treated leaves weighed less, had fewer stomata, and had less chlorophyll per unit area of leaf. Net CO₂ assimilation rates did not differ significantly between red- and far red-treated leaves on an area basis; however, the far red-treated leaves assimilated significantly more CO₂ on a leaf weight basis.

This article has been cited by other articles:

				E. Frak, X. Le Roux, P. Millard, B. Adam, E. Dreyer, C. Escuit, H. Sinoquet, M. Vandame, and C. Varlet-Grancher Spatial distribution of leaf nitrogen and photosynthetic capacity within the foliage of individual trees: disentangling the effects of local light quality, leaf irradiance, and transpiration J. Exp. Bot., November 1, 2002; 53(378): 2207 - 2216. [Abstract] [Full Text] [PDF]

				G. F. Antonious and M. J. Kasperbauer Color of Light Reflected to Leaves Modifies Nutrient Content of Carrot Roots Crop Sci., July 1, 2002; 42(4): 1211 - 1216. [Abstract] [Full Text] [PDF]