Plant Physiol. EPICENTRE Biotechnologies
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Plant Physiology 53:47-51 (1974)
© 1974 American Society of Plant Biologists

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A Digital Diffusion Porometer Circuit 1

Edwin L. Fiscus

a Department of Botany, Duke University, Durham, North Carolina 27706

An automatic digital diffusion porometer circuit is described. The circuit is highly stable with respect to temperature and supply voltage. The device is capable of high timing accuracy over very short measurement intervals, so that measurements may be made rapidly without the danger of stomatal changes occurring during the measurement period.

1 This work was supported by National Science Foundation Grant GB-30367X.






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Copyright © 1974 by the American Society of Plant Biologists