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Carbon Isotope Discrimination and Photosynthesis
We discuss the physical and enzymatic bases of carbone isotope discrimination during photosynthesis, noting how knowledge of discrimination can be used to provide additional insight into…
A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species
Various aspects of the biochemistry of photosynthetic carbon assimilation in C3 plants are integrated into a form compatible with studies of gas exchange in leaves. These aspects include the kinetic…
Isotopic Composition of Plant Carbon Correlates With Water-Use Efficiency of Wheat Genotypes
It is suggested that carbon-isotope analysis may be a useful tool in selection for improved water-use efficiency in breeding programmes for C3 species.
On the Relationship Between Carbon Isotope Discrimination and the Intercellular Carbon Dioxide Concentration in Leaves
It is shown how diffusion of gaseous COz can significantly affect carbon isotopic discrimination and a simple relationship between discrimination and the ratio of the intercellular and atmospheric partial pressures of COZ is developed.
The Carbon Cycle and Atmospheric Carbon Dioxide
Contributing Authors D.R.A. Archer, M.M.P. Keeling, D.D.F. Weirig, T. Whorf, A.C. Sitch, R.J. Rayner, S.Q. Tans, H. Yool.
Stomatal conductance and photosynthesis
Under optimal conditions, the most outstanding genotype was ICS-1, both in plant height, number of leaves, and stomatal conductance, this being proof that this genotype develops excellently and stands out if it has the right conditions and water availability.
Some relationships between the biochemistry of photosynthesis and the gas exchange of leaves
It was found that the response of the rate of CO2 Assimilation to irradiance, partial pressure of O2, p(O2), and temperature was different at low and high intercellular p(CO2), suggesting that CO2 assimilation rate is governed by different processes at lowand high inter cellular p (CO2).
Simple scaling of photosynthesis from leaves to canopies without the errors of big‐leaf models
By separately integrating the sunlit and shaded leaf fractions of the canopy, a single layered sun/shade model is obtained, which is as accurate and simpler as a scaled version of a leaf model as distinct from an integrative approach.
Breeding for high water-use efficiency.
- A. Condon, R. Richards, G. Rebetzke, G. Farquhar
- Medicine, BiologyJournal of experimental botany
- 1 November 2004
Progress in breeding for improved water-use efficiency of rain-fed wheat is reviewed and results of such simulations indicate that greater progress may be achieved by pyramiding traits so that potential negative effects of individual traits are neutralized.
Fitting photosynthetic carbon dioxide response curves for C(3) leaves.
- T. Sharkey, C. Bernacchi, G. Farquhar, E. Singsaas
- Environmental SciencePlant, cell & environment
- 1 September 2007
Fitting this model is a way of exploring leaf level photosynthesis in terms of underlying biochemistry and biophysics is subject to assumptions that hold to a greater or lesser degree.