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This article in AJ

  1. Vol. 61 No. 3, p. 405-411
    Received: Sept 23, 1968

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Photosynthesis Under Field Conditions. XA. Assessing Sources and Sinks of Carbon Dioxide in a Corn (Zea mays L.) Crop Using a Momentum Balance Approach1

  1. E. R. Lemon and
  2. J. L. Wright2



In a previous communication we described a meteorological method of assessing the vertical distribution of photosynthesis and respiration activity in a corn crop. The method, however, is tedious. Here we describe a much simpler method. Results indicate that all the leaves of a corn crop appear to follow the same near-linear light response curve, at least above the compensation point. Below the compensation point, all leaves evidently respire very little.

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