Photosynthesis, transpiration and leaf diffusive conductance of Cassava in response to water stress

Jairo Palta

doi:10.1139/b83-043

Photosynthesis, transpiration and leaf diffusive conductance of Cassava in response to water stress

Jairo Palta

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

The effects of short periods of water shortage on the CO2 and water vapour exchange of attached cassava (Manihot esculenta Crantz 'M Col 72') leaves were measured. Gas-exchange and leaf water potential measurements were made in outdoor grown plants previously subjected to varying periods without water. Leaf water potentials fell to between −0.61 and −1.06 MPa and net photosynthesis and transpiration rates declined as leaf water potential decreased. Estimations of the leaf internal CO2 conductance indicated that the linear relationship established between leaf water potential and net photosynthesis is dominated by, but not completely explained by, stomatal closure.

Original language	English
Pages (from-to)	373-376
Journal	Canadian Journal of Botany
Volume	61
Issue number	1
DOIs	https://doi.org/10.1139/b83-043
Publication status	Published - 1983
Externally published	Yes

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Palta, J. (1983). Photosynthesis, transpiration and leaf diffusive conductance of Cassava in response to water stress. Canadian Journal of Botany , 61(1), 373-376. https://doi.org/10.1139/b83-043

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abstract = "The effects of short periods of water shortage on the CO2 and water vapour exchange of attached cassava (Manihot esculenta Crantz 'M Col 72') leaves were measured. Gas-exchange and leaf water potential measurements were made in outdoor grown plants previously subjected to varying periods without water. Leaf water potentials fell to between −0.61 and −1.06 MPa and net photosynthesis and transpiration rates declined as leaf water potential decreased. Estimations of the leaf internal CO2 conductance indicated that the linear relationship established between leaf water potential and net photosynthesis is dominated by, but not completely explained by, stomatal closure.",

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AB - The effects of short periods of water shortage on the CO2 and water vapour exchange of attached cassava (Manihot esculenta Crantz 'M Col 72') leaves were measured. Gas-exchange and leaf water potential measurements were made in outdoor grown plants previously subjected to varying periods without water. Leaf water potentials fell to between −0.61 and −1.06 MPa and net photosynthesis and transpiration rates declined as leaf water potential decreased. Estimations of the leaf internal CO2 conductance indicated that the linear relationship established between leaf water potential and net photosynthesis is dominated by, but not completely explained by, stomatal closure.

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