Results 221 to 230 of about 68,537 (262)

Analysis of leaf CO2 assimilation

1994
Canopy photosynthesis can be calculated by integrating individual leaf photosynthesis over the entire leaf canopy. The value of leaf photosynthesis at each point in time and each point in the leaf canopy is a function of the local environmental conditions, operating on the leaf response curve. Here, some characteristics of the leaf response curve shall
J. Goudriaan, H. H. Van Laar
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13C discrimination during CO2 assimilation by the terrestrial biosphere

Oecologia, 1994
Estimates of the extent of the discrimination against13CO2 during photosynthesis (ΔA) on a global basis were made using gridded data sets of temperature, precipitation, elevation, humidity and vegetation type. Stomatal responses to leaf-to-air vapour mole fraction difference (D, leaf-to-air vapour pressure difference divided by atmospheric pressure ...
Jon, Lloyd, Graham D, Farquhar
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CO2 assimilation in a thermophilic cyanobacterium

Energy Conversion and Management, 1995
A thermophilic cyanobacterium, Synechococcus elongatus, grew in the mineral medium supplied with gas containing CO2 of concentration from 0.04 to 60%. Mechanism of growth repression by high CO2 was discussed. Lipid and fatty acid compositions of the cytoplasmic and thylakoid membranes from this cyanobacterium were analyzed as products from CO2 ...
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Seasonal changes in CO2 assimilation of cranberry leaves

Scientia Horticulturae, 1995
Abstract CO2 assimilation rates of current season and 1-year-old leaves were measured under field conditions in 1991 and 1992 on cranberry (Vaccinium macrocarpon Ait. cultivars ‘Stevens’ (high yielding) and ‘Searles’ (low yielding)) uprights. One-year-old cranberry leaf CO2 assimilation rates increased from May to early June to a peak of about 22 ...
Marianna Hagidimitriou, Teryl R. Roper
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CO2 Net Assimilation of Leaves

2016
Dependencies of CO2 net assimilation rates of leaves on the variables [CO2], light (photosynthetic photon flux density), air temperature, and nitrogen are quantified by means of examples. Factors that enhance the effects of increasing [CO2] are compiled.
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Effect of Elevated Air CO2 Concentration on the CO2 Assimilation of Winter Wheat

1998
Increasing number of experiments have been carried out since the seventies to analyse the effect of elevated air CO2 concentration on wheat (1, 2, 3). It was found that the photosynthetic rate of plants grown at higher CO2 concentrations was more intense, while the transpiration rate decreased compared to plants grown in our present day CO2 level ...
N. Harnos, K. Szente, Z. Tuba
openaire   +1 more source

Living hybrid materials capable of energy conversion and CO2 assimilation

Chemical Communications, 2010
This paper reviews our work on the fabrication of photobiochemical hybrid materials via immobilisation of photosynthetically active entities within silica materials, summarising the viability and productivity of these active entities post encapsulation and evaluating their efficiency as the principal component of a photobioreactor.
Meunier, C. F., Rooke, J. C., Léonard, Alexandre, Xie, H., Su, B.-L.   +4 more
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Thermodynamik der CO2-Assimilation

1933
Der wichtigste Umwandlungsprozes strahlender Energie in der Pflanze ist die CO2-Assimilation, die photochemische Reduktion der CO2 auf die Reduktionsstufe der Kohlehydrate. Ihre Bedeutung fur die grune Pflanze ist stofflicher und energetischer Natur.
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Computational analysis of the oscillatory dynamics in the processes of CO2 assimilation and photorespiration

Biosystems, 2011
The computational analysis of the model system consisting of the processes of CO2 assimilation and photorespiration shows the appearance of sustained oscillations in the system which might reflect their presence in photosynthesizing cells. Concentrations of CO2 and O2 oscillate in opposite phases causing Rubisco switching continuously between the ...
Andrey Yu. Dubinsky, Alexander A. Ivlev
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Effect on Net Carbon Assimilation and Allocation of Assimilates under Elevated CO2 in Mungbean

1990
Leaves in present atmosphere are not able to produce maximum rates of photosynthesis due to limiting ambient CO2 levels. With increase in CO2 concentration, photosynthesis increases until some other factor, such as light becomes limiting (1). Linear increase in photosynthesis has been shown in many crop species when concentrations is increased in the ...
U. K. Sengupta, Aruna Sharma
openaire   +1 more source