J Integr Plant Biol. ›› 1996, Vol. 38 ›› Issue (8): -.

• Research Articles •    

Variation in Transpiration Rate of Plant Cuttings

Guo Ke, Dong Xue-jun, Zhao Yu-xing and Liu Zhi-mao   

Abstract: Porometric analysis of transpiration variance of plant cuttings of 8 species in Maowusu Sandland, Inner Mongolia was carried out. Transpiration rate of a plant part changed immediately after cutting. Quantitation and prediction of such a change were different as the nature of the change was relevant to the leaf-water status of the plant which, in turn, was species, habitat and cutting time specific. Therefore, average transpiration rate of a plant cutting measured in a certain time interval was not a representive transpiration rate of the plant without any correction. Based on the present result, the author's suggest that porometry is applicable when a correction is made by a coefficient expressing the difference in transpiration rate between before and after cutting, which can be used to estimate the transpiration rate of the plant.

Key words: Transpiration rate, Measuring method, Plant cuttings

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