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This article in AJ

  1. Vol. 63 No. 1, p. 78-81
    Received: May 22, 1970

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An Evaluation of Two Methods for Obtaining Leaf Transmissivity from Leaf Reflectivity Measurements1

  1. Richard E. Carlson and
  2. Douglas N. Yarger2



Two methods for calculating values of leaf transmissivity from leaf reflectivity measurements are evaluated. These methods gave nearly identical results for the spectral range 500-2,600 mμ. Two species with dissimilar leaf structures, cota, and soybeans, were tested. The results indicate that values of leaf transmissivity can be calculated within a relative error of 5% of the measured values. The method proposed by the authors is based upon a quadratic equation, which is simpler to apply than the cubic equation form of the other method which was tested.

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