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Ecological Significance of Red Light Sensitivity in Germination of Tobacco Seed |
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| Authors: | Wells P V |
| Abstract: | The light transmission of different soil materials was measured in a Beckman spectrophotometer. The relative energy transmission was greatest at the red end of the spectrum. A seed sensitive to red light will have the capacity to germinate at nearly the maximum depth of penetration by visible light, where the risk of early desiccation is diminished. |
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