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Differences in the behavior of adaxial and abaxial stomata of amphistomatous sunflower leaves inherent or environmental

, : Differences in the behavior of adaxial and abaxial stomata of amphistomatous sunflower leaves inherent or environmental. Australian Journal of Plant Physiology 5(2): 211-218

Experiments were conducted on sunflower, Helianthus annuus L., to determine whether differences in behavior between the abaxial and adaxial stomata of amphistomatous plants are inherent or due to leaf orientation. A single leaf enclosed in a cuvette was observed in normal and reverse orientation and the conductance of each surface was followed as light and humidity changed and the stem was severed. The differences in behavior were found to be the result of leaf orientation rather than the result of inherent differences between adaxial and abaxial stomata.

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