T. W. Tibbitts's Controlled Environment Guidelines for Plant Research PDF

By T. W. Tibbitts

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Extra info for Controlled Environment Guidelines for Plant Research

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Phytochrome and Photomorphogenesis" London. , p. 151. CONTROLLED ENVIRONMENT GUIDELINES FOR PLANT RESEARCH RADIATION: Robert CRITIQUE I J . D ow ns Phytotron North Carolina State University R a l e i g h , North Carolina One of the objectives of a as possible with the principal discussant is to disagree as often speaker in order to stimulate animated discussion from the floor. Since McCree discussed physical principles and their application to plant growth, little disagreement is practicable. It is possible however to expand upon some of McCree's comments, especially from the point of view of plant growth and development.

The blending of the radiant output of lamps probably is becoming increasingly complicated with the combinations currently used. It is hoped that suitable optical systems are being used or designed to adequately blend the irradiation from lamps so that there is good uniformity of spectral radiance in the plant growing area. Combinations of high intensity discharge HID and incandescent lamps are common today. include metal halide and tungsten halogen (HID) lamps, or Some combinations (incandescent), and metal halide and high pressure sodium lamps.

S. (1978). Photometers for p h y t o t r o n s . Phytotronic Newsletter 17, 47-50. Lowry, W. P. (1969). " Academic Press, New York. McCree, K, J. (1973). A rational approach to light measurements in plant ecology. C u r r . Adv. Plant Sei. 5, 39-43. McKenzie, J. , Weiser, C. J . , and Burke, M. J. (1974). Effects of red and far red light on the initiation of cold acclimation in Cornus s t o l o n i f e r a . Plant Physiol. Parker, M. W. and Borthwick, H. A. 53, 783-789. (1949). Growth and composition of Biloxi soybean grown in a controlled environment with radiation from different carbon arc sources.

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