A low cost instrument for measurement of
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R.C. Muchow; G.L. Kerven
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Article
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1977
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Elsevier Science
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A robust, relatively low cost (parts $300 Aust., 1976) instrument suitable for field studies was constructed to give rapid estimates of photosynthetically active radiation, both absolute and as percentage transmission, within plant canopies. The instrument consists of 9 selenium photocells mounted i