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Photoperiodism in Plants.
Flowering of plants depends upon the length of the night. This control of flowering is one of the methods of adaptation of species by which an unfavorable season is anticipated. It implies aExpand
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A Reversible Photoreaction Controlling Seed Germination.
* Part of this work was done as a National Research Council Fellow at the University of California, Berkeley. 1 Bonner, J. T., Am. J. Bot., 31, 175 (1944). 2 Skupienski, F. X., Recherches Sur LeExpand
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The Reaction Controlling Floral Initiation.
Reproduction in many plants and animals is controlled by the length of the night and the cycle of day and night. A dark reaction affords the measure of time and this reaction can be quickly stoppedExpand
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Photoperiodic Pereception in Biloxi Soy Beans
1. When whole plants of Biloxi soy beans are subjected to 8 hour photoperiods, initiation occurs if the intensity of light during the photoperiod is above 100 foot candles. Below 100 foot candles noExpand
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Action of Light on Lettuce-Seed Germination
1. The observations of Flint and McAlister that imbibed seed of some lettuce varieties can be promoted in germination by irradiation in the red portion of the spectrum and inhibited in the infraredExpand
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The function of phytochrome in regulation of plant growth.
Many aspects of growth and development of seed plants, ferns, and mosses are affected by the change in form of the blue chromoprotein phytochrome.1 These include flower initiation and development,Expand
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Lettuce seed and its germination
Abstract does not appear. First page follows. Introduction The germination of lettuce seed‡ (Lactuca sativa) is inhibited at certain temperatures, above the optimum. These temperatures may notExpand
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Photocontrol of Lepidium Seed Germination.
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Interaction of Temperature and Light in Germination of Seeds.
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