1996
DOI: 10.1071/pp9960561
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Dependency of cI/ca and Leaf Transpiration Efficiency on the Vapour Pressure Deficit

Abstract: The leaf transpiration efficiency (A/E, where A is the assimilation rate and E the transpiration rate) is widely used to evaluate plant responses to the environment, yet little attention has been paid to its relationship with vapour pressure deficit (D), the driving force for E. The proposed model is based on the increasingly recognised linear relationship between the ratio of intercellular to ambient CO2 partial pressures (cI/ca) and D. Unlike previous models for A/E, the proposed model does not assume that t… Show more

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Cited by 31 publications
(13 citation statements)
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“…While many measurements do appear to show that k c is quite conservative within a crop, it is clear that because g s usually declines with increasing De (e.g. Morison & Gifford 1983;Zhang & Nobel 1996;Xu & Hsiao 2004), k c increases. As a recent analysis of barley crop TE shows (Kemanian et al 2005), this response acts to slightly reduce the advantage of more humid environments in improving the BWR.…”
Section: Water Use In Plant Growth and 'Water Use Efficiency'mentioning
confidence: 99%
“…While many measurements do appear to show that k c is quite conservative within a crop, it is clear that because g s usually declines with increasing De (e.g. Morison & Gifford 1983;Zhang & Nobel 1996;Xu & Hsiao 2004), k c increases. As a recent analysis of barley crop TE shows (Kemanian et al 2005), this response acts to slightly reduce the advantage of more humid environments in improving the BWR.…”
Section: Water Use In Plant Growth and 'Water Use Efficiency'mentioning
confidence: 99%
“…Under sufficient high levels of solar radiation, it appears that the ratio of the internal and external concentration is only a function of the water vapor deficit (Goudriaan et al 1985;Jacobs 1994;Zhang and Nobel 1996) and can be expressed by (Jacobs 1994):…”
Section: Model Descriptionmentioning
confidence: 99%
“…When sufficient amounts of solar radiation density are available, it appears that the ratio of the internal and external concentration is only a function of the water vapour deficit (Goudriaan et al, 1985;Jacobs, 1994;Zhang and Nobel, 1996) and can be expressed by (Jacobs, 1994) …”
Section: Theorymentioning
confidence: 99%