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This article in AJ

  1. Vol. 57 No. 4, p. 399-404
    Received: Dec 14, 1964

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Effects of Repeated Drought Periods on Photosynthesis and Survival of Cereal Seedlings1

  1. Glenn W. Todd and
  2. Daniel L. Webster2



There were no significant differences in photosynthetic rate among wheat varieties differing in drought hardiness although slightly higher rates were obtained at lower turgor for nearly all cereal varieties after they had been subjected to a single drought period. Photosynthetic rates paralleled moisture stress during successive drought periods. A method of screening for relative drought hardiness among wheat varieties was devised and tested and this correlated well with known field hardiness.

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