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A low cost instrument for measurement of photosynthetically active radiation in field canopies

✍ Scribed by R.C. Muchow; G.L. Kerven

Publisher
Elsevier Science
Year
1977
Weight
417 KB
Volume
18
Category
Article
ISSN
0002-1571

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✦ Synopsis

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 in a probe and a single selenium cell as the reference sensor. The performance of the instrument was evaluated in both the laboratory and field.

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