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| Publication Type:
| Refereed |
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| Author(s): | Woolley, Joseph T.;
Stoller, Edward W. |
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| Author Affiliation: | United States Department of Agriculture, Agricultural Research Service, Agronomy Department, University of Illinois |
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| Title: | Light penetration and light-induced seed germination in soil |
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| Source: | Plant Physiology. Vol. 61, No. 4, April 1978, p. 597-600. |
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| Publishing Information: | Lancaster, PA: American Society of Plant Physiologists |
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| Keywords: | TIC Keywords: Light; Clay; Sand; Germination; Spectrophotometry
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| Abstract/Contents: | Light penetration through a Drummer silty clay loam and a Broomfield sand was measured spectrophotometrically and biologically. The spectrophotometric measurements showed that less than 1% of the incident light penetrated 2.2 millimeters at any wavelength between 350 and 780 nanometers for ped sizes up to 1 millimeter. Biological measurements with light-sensitive lettuce (Lactuca sativa) seeds in soil showed that an exposure to light equivalent to about 1 sunny day induced some germination of seeds which were 2 millimeters below the surface, but did not affect seeds 6 millimeters below the surface. |
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| Language: | English |
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| Note: | Figures, tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Woolley, J. T., and E. W. Stoller. 1978. Light penetration and light-induced seed germination in soil. Plant Physiol. 61(4):p. 597-600. |
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MSU catalog number: QK 1 .P68 |
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