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Title: Growth of hybrid poplars, white spruce, and jack pine under various artificial lights.
Author: Roberts, Pamela S.; Zavitkovski, J.;
Source: Research Paper NC-206. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: Research Paper (RP)
Description: Describes the energy consumption and biological effects of fluorescent, incandescent, and high pressure sodium lighting on the growth of poplars, white spruce, and jack pine in a greenhouse. At similar light levels the biological effects of all three light sources were similar. The incandescent lamps consumed several times more energy than the other two light sources.
Keywords: photosynthetically active radiation (PAR), height growth, dry matter production, plastic greenhouse
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Roberts, Pamela S.; Zavitkovski, J. 1981. Growth of hybrid poplars, white spruce, and jack pine under various artificial lights. Research Paper NC-206. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
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