Photosynthesis and transpiration

Collatz, G. Ball, J. T., Grivet, C. and Berry, J. A. (1991). Physiological and environmental regulation of stomatal conductance, photosynthesis, and transpiration a model that includes a laminar boundary layer, Agric. For. Meteorol. 54,107-136. 

Sellers, P. J., Berry, J. A., Collatz, G. ]., Field, C. B. and Hall, F. G. (1992). Canopy reflectance, photosynthesis, and transpiration. III. A reanalysis using improved leaf models and a new canopy integration scheme. Remote Sens. Environ. 42,187-216. 

Takeda, T., Sugimoto, H. Agata, W. (1978). Water and crop production. I. The relationship between photosynthesis and transpiration in corn leaf. Japanese Journal of Crop Science, 47, 82-9. 

Blum, A. (1985). Photosynthesis and transpiration in leaves and ears of wheat and barley varieties. Journal of Experimental Botany, 36, 432-40. 

The effect of zearalenone on crop development may be connected to its influence on the status and functioning of the photosynthetic apparatus (Koscielniak et al. 2008). The after-effects of zearalenone on the growth of soybean and wheat plants, net photosynthesis and transpiration rates, stomatal conductance, photochemical efficiency of photosystem 2 and on final seeds yield were determined. Modifications in leaf area were more pronounced in soybean than in wheat, and this tendency increases in successive developmental phases. The net photosynthesis was stimulated during the juvenile phase and during that of the final one by about 13.6% (average) in soybean plants. Stimulation of transpiration was also observed after... 

Ku, S. B., Edwards, G. E., Tanner, C. B. (1977). Effects of light, carbon dioxide, and temperature on photosynthesis, oxygen inhibition of photosynthesis, and transpiration in Solanum tuberosum. Plant Physiol, 59, 868-872. 

Gale J (1973) Experimental evidence for die effect of barometric pressure on photosynthesis and transpiration. Plant response to climatic factors. Proc of die Uppsala symposium, UNESCO, Ecology and Conservation... 

Effect of Leaf Position on the Rate of Photosynthesis and Transpiration... 

The tops of Jerusalem artichoke can also be cut off at 1.5 m to reduce the likelihood of wind damage (Wood, 1979), which in this instance prevented the plants from flowering. Wind also affects leaf temperature and the rates of photosynthesis and transpiration, with resulting but minor effects on growth rate (Meyer et al., 1973). 

Diffusion of gases in the air surrounding and within leaves is necessary for both photosynthesis and transpiration. For instance, water vapor evaporating from the cell walls of mesophyll cells diffuses across the intercellular air spaces (Fig. 1-2) to reach the stomata and from there diffuses across an air boundary layer into the atmosphere (considered in detail in Chapter 8,... 

Figure 9-23. Environmental factors in global climate change that affect photosynthesis and transpiration plus some resulting plant and ecosystem changes.

Kirschbaum, M.U.F. 2004. Direct and indirect climate change effects on photosynthesis and transpiration. Plant Biol. 6 242—253. 

Tlizet, A., Perrier, A., and Leuning, R. 2003. A coupled model of stomatal conductance, photosynthesis and transpiration. Plant Cell Environ 26 1097-1116. 

Forests are efficient filters of dust. Dust influences photosynthesis and transpiration, and in part it also corrodes the plant surface. An accumulation of dust takes place near the emittent as well as in forests of higher altitudes after transport. 

Carlson RW, Bazzaz FA and Rolfe GL (1975) The effect of heavy metals on plants. II. Net photosynthesis and transpiration of whole com and sunflower plants treated with Pb, Cd, Ni, and Tl. Environ Res 10 113-120. 

Sellers, P.J., 1985. Canopy reflectance, photosynthesis and transpiration. Int. J. Remote Sens. 6, 1335-1372. 

Leaves show considerable variation in size, shape, arrangement of veins, type of attachment to the stem, and texture. They may be simple or divided into leaflets, i,e, compound (see illustration), Types of leaf include cotyledons (seed leaves) scale leaves, which lack chlorophyll and develop on rhizomes or protect the inner leaves of a bud foliage leaves, which are the main organs for photosynthesis and transpiration and bracts and floral leaves, such as sepals, petals, stamens, and carpels, which are specialized for reproduction. 

TABLE 1. Photosynthesis and transpiration rates. Mean values (=SE) of 6 to 14 replicates. S= Statistical significance according to the Analysis of the Variance. Values without a common subindex are significantly different at 0,95 level according to the Duncan Multiple Range Test. 

EFFECTS OF FIRE ON PHOTOSYNTHESIS AND TRANSPIRATION IN A MEDITERRANEAN ECOSYSTEM... 

This study was undertaken to determine the relationships between the rapid growth of vegetation after fire and the seasonal variations of some physiological factors in resprouts compared with unburnt material. Seasonal photosynthesis and transpiration measurements as well as leaf nitrogen content were conducted during the first post-fire year. 

Methods Photosynthesis and transpiration rates were measured with a portable A.D.C. Irga- po-rometer. The number of replicates was at least ten per plant and treatment. Nitrogen content of lyophyllized material was determined with a Carlo Erba Elemental Analyzer. 

Photosynthesis and transpiration rates as well as stomatal conductance and CO2 mesophyll concentration were measured using an IRGA Licor 6200 on attached fully developed leaves in field conditions. 

Effects of Fire on Photosynthesis and Transpiration in a Mediterranean Ecosystem 695... 

No obvious deleterious effects on the growth of clover, oats or lettuces have been observed on adding soluble lead up to a level of 400 ppm soil. This is a heavy addition, since uncontaminated soils normally contain around 1 ppm available lead. This element, therefore, does not appear to be phytotoxic, even at levels in the soil characteristic of heavy contamination. However, there is some evidence [307] based on experimental work with maize and soybeans, that both photosynthesis and transpiration are inhibited by the presence of high lead levels in plants. 

In their study of corn and soybeans, Bazzaz et al. [3] found a decrease in net photosynthesis and transpiration with increasing lead treatment levels from PbCl2. At lower lead concentrations corn, a C4 plant, was more sensitive. At higher lead concentrations soybeans, a C3 plant, was more sensitive, and was found to have lower photosynthesis and transpiration rates. The rate changes of the two processes are related to changes in the leaf stomatal resistance to CO2, and water vapor diffusion [3]. It is believed that the difference in storage areas of photosynthesis products in C3 and C4 plants causes this difference. 

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