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Radin JW, Kimball BA, Hendrix DL, et al. Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field. Photosynth Res. 1987;12(3):191-203doi: 10.1007/BF00055120.
Radin, J. W., Kimball, B. A., Hendrix, D. L., & Mauney, J. R. (1987). Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field. Photosynthesis research, 12(3), 191-203. https://doi.org/10.1007/BF00055120
Radin, J W, et al. "Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field." Photosynthesis research vol. 12,3 (1987): 191-203. doi: https://doi.org/10.1007/BF00055120
Radin JW, Kimball BA, Hendrix DL, Mauney JR. Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field. Photosynth Res. 1987 Jan;12(3):191-203. doi: 10.1007/BF00055120. PMID: 24435687.
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Photosynth Res. 1987 Jan;12(3):191-203. doi: 10.1007/BF00055120.

Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field.

Photosynthesis research

J W Radin, B A Kimball, D L Hendrix, J R Mauney

Affiliations

  1. Agricultural Research Service, Western Cotton Research Laboratory, United States Department of Agriculture, 85040, Phoenix, AZ, USA.

PMID: 24435687 DOI: 10.1007/BF00055120

Abstract

The cotton (Gossypium hirsutum L.) plant responds to a doubling of atmospheric CO2 with almost doubled yield. Gas exchange of leaves was monitored to discover the photosynthetic basis of this large response. Plants were grown in the field in open-top chambers with ambient (nominally 350 μl/l) or enriched (nominally either 500 or 650 μl/l) concentrations of atmospheric CO2. During most of the season, in fully-irrigated plants the relationship between assimilation (A) and intercellular CO2 concentration (ci) was almost linear over an extremely wide range of ci. CO2 enrichment did not alter this relationship or diminish photosynthetic capacity (despite accumulation of starch to very high levels) until very late in the season, when temperature was somewhat lower than at midseason. Stomatal conductance at midseason was very high and insensitive to CO2, leading to estimates of ci above 85% of atmospheric CO2 concentration in both ambient and enriched chambers. Water stress caused A to show a saturation response with respect to ci, and it increased stomatal closure in response to CO2 enrichment. In fully-irrigated plants CO2 enrichment to 650 μl/l increased A more than 70%, but in water-stressed plants enrichment increased A only about 52%. The non-saturating response of A to ci, the failure of CO2 enrichment to decrease photosynthetic capacity for most of the season, and the ability of the leaves to maintain very high ci, form in part the basis for the very large response to CO2 enrichment.

References

  1. Oecologia. 1979 Dec;44(1):68-74 - PubMed
  2. Photosynth Res. 1985 Jan;7(2):175-84 - PubMed
  3. Plant Physiol. 1981 Jan;67(1):115-9 - PubMed
  4. Plant Physiol. 1985 May;78(1):71-5 - PubMed
  5. Plant Physiol. 1983 Nov;73(3):658-61 - PubMed
  6. Plant Physiol. 1985 Jul;78(3):619-22 - PubMed
  7. Plant Physiol. 1983 Nov;73(3):681-6 - PubMed
  8. Plant Physiol. 1977 May;59(5):986-90 - PubMed
  9. Plant Physiol. 1983 Nov;73(3):662-5 - PubMed
  10. Plant Physiol. 1974 Nov;54(5):678-85 - PubMed

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