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This article in AJ

  1. Vol. 61 No. 4, p. 644-647
    Received: Nov 4, 1968

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Leaf Sampler for Relative Water Content Measurements: Design and Application1

  1. Ray W. Brown2



A leaf sampler capable of holding eight samples has been designed and used for measuring the relative water content of plant tissues. The precision-made leaf cutter and sample chambers permit the collection of leaf tissue disks from leaves still attached to the plant. After excision, tissue samples can be sealed immediately in small vials within the sample chambers to prevent evaporative water loss. Relative water content values of orchardgrass leaf samples obtained with the leaf sampler were higher, without exception, than were the values of similar samples obtained with a cork borer. However, these differences were not significant until permanent wilting was approached.

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