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THE FUNCTION OF PHYTOCHROME IN THE NATURAL ENVIRONMENT—II. THE INFLUENCE OF VEGETATION CANOPIES ON THE SPECTRAL ENERGY DISTRIBUTION OF NATURAL DAYLIGHT
Abstract
Abstract— Qualitative changes in the spectral energy distribution (SED) of natural daylight within the 400–800 nm wavelength band have been followed within a wheat canopy. Selective attenuation of radiation by the canopy caused large decreases in the blue and red wavebands and, to a lesser extent, the green; far‐red was largely transmitted. This resulted in a decrease in the red:far‐red ratio from the values observed in natural daylight. The spectral energy distribution below the canopy was found to be partially dependent on solar elevation and sky condition; it was also dependent on the age, height, leaf area index and chlorophyll content of the crop. The possible ecological significance of the wide variety of spectral energy distributions which have been observed are discussed in relation to phytochrome function.
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Cited by
Franklin, K. A. (2008) · New Phytologist · doi:10.1111/j.1469-8137.2008.02507.x · Cited by 801
The shade avoidance syndrome: multiple responses mediated by multiple phytochromes
SMITH, H., & WHITELAM, G. C. (1997) · Plant, Cell & Environment · doi:10.1046/j.1365-3040.1997.d01-104.x · Cited by 722
Self-citationBALLARÉ, C. L., SÁNCHEZ, R. A., SCOPEL, A. L., CASAL, J. J., & GHERSA, C. M. (1987) · Plant, Cell & Environment · doi:10.1111/1365-3040.ep11604091 · Cited by 438
Casal, J. J., Sanchez, R. A., & Deregibus, V. A. (1986) · Environmental and Experimental Botany · doi:10.1016/0098-8472(86)90024-9 · Cited by 191
Beall, F. D., Yeung, E. C., & Pharis, R. P. (1996) · Canadian Journal of Botany · doi:10.1139/b96-093 · Cited by 78
Metadata
- Authors
- Holmes, M. G., & Smith, H.
- Venue
- Photochemistry and Photobiology
- Publisher
- Wiley
- Published
- 1977-06
- Volume
- 25
- Issue
- 6
- Pages
- 539-545
- ISSN
- 0031-8655 (ISSN-L)
- 1751-1097
- OpenAlex
- W2014634412
- Cited by
- 293
- References
- 0
- FWCI
- 9.48
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: THE FUNCTION OF PHYTOCHROME IN THE NATURAL ENVIRONMENT—II. THE INFLUENCE OF VEGETATION CANOPIES ON THE SPECTRAL ENERGY DISTRIBUTION OF NATURAL DAYLIGHT. https://app.cochat.ai/papers/10.1111/j.1751-1097.1977.tb09125.x
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- Holmes, M. G., & Smith, H. (1977). THE FUNCTION OF PHYTOCHROME IN THE NATURAL ENVIRONMENT—II. THE INFLUENCE OF VEGETATION CANOPIES ON THE SPECTRAL ENERGY DISTRIBUTION OF NATURAL DAYLIGHT. Photochemistry and Photobiology. https://doi.org/10.1111/j.1751-1097.1977.tb09125.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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