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Transpiration Rate Reduction in Plants with Atrazine
Science, 1962When treated with atrazine, a herbicide that acts as an inhibitor of photosynthesis, both tolerant and susceptible plants showed a reduction in transpiration rate. This occurred within 1 to 3 hours of application and usually reduced transpiration by 50 percent or more after about 6 hours.
D, Smith, K P, Buchholtz
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Transpiration rates of urban trees, Aesculus chinensis
Journal of Environmental Sciences, 2012Transpiration patterns of Aesculus chinensis in relation to explanatory variables in the microclimatic, air quality, and biological phenomena categories were measured in Beijing, China using the thermal dissipation method. The highest transpiration rate measured as the sap flux density of the trees took place from 10:00 am to 13:00 pm in the summer and
Hua, Wang +6 more
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A Comparison of Transpiration Rates in Chaparral
Ecology, 1932The scrub vegetation called chaparral has undergone such change from repeated fires, especially on the lower foothills of southern California, as to be termed " fire type" chaparral. This continued fire effect makes pertinent various questions of future management of this chief vegetative cover, questions whose importance is measured by the great ...
A. A. Shapiro, H. deForest
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Relative Transpiration Rates in Citrus Leaves
Botanical Gazette, 19321. A study was made of the comparative transpiration rates of leaves of rooted Eureka lemon, Marsh grapefruit, and Valencia orange cuttings. The rate was highest for the lemon, less for the grapefruit, and least for the orange. 2. It was found that 2 to 3.5 times as much water was transpired through the under as through the upper leaf surface.
A. R. C. Haas, F. F. Halma
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Transpiration Rates in the Luquillo Mountains of Puerto Rico
Biotropica, 1973Transpiration in elfin woodland on a peak at 1000 m and in montane rain forest at 550 m was found to be extremely low when compared to most other rates reported in the literature, regardless of habitat. Apparently, transpiration differences between the two habitats which we studied depended upon weather conditions. The extremely low saturation deficits
Peter L. Weaver +2 more
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Cuvette Temperatures and Transpiration Rates
Ecology, 1969A cuvette which automatically opens between sampling periods and thus reduces internal temperature buildups was developed for use in measuring transpiration rates of intact plants in the field. In a closed cuvette air—temperature buildups of 5°—7°C and needle—temperature buildups of 17°C above ambient air temperatures are not uncommon, and these ...
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Olive Tree's Transpiration Rates in Southern Portugal
2006 Portland, Oregon, July 9-12, 2006, 2006The research was done during 2005 at the Herdade dos Lameiroes, in the region of Moura, Southern Portugal (Lat.38° 05' N; Long. 07o 16' W; alt. 75m), in both mature and young tree stands (Olea Europaea). On both layouts measurements of sap flow were obtained at 30 minute intervals and for a period of 4 months using the heat pulse velocity (HPV ...
null Francisco L. Santos +4 more
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Calculations of the transpiration rate and temperature of a leaf
Archiv für Meteorologie, Geophysik und Bioklimatologie Serie B, 1964Sample calculations of the water-loss rate and the temperature of a leaf have been made in terms of three climatic factors (i. e. net radiation intensity, ambient temperature and ambient vapour pressure) and two diffusion resistances, respectively within and outside the leaf tissue.
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Simple Indirect Estimation of Ventilation and Crop Transpiration Rates in a Greenhouse
Biosystems Engineering, 2004Abstract A simple linear model has been developed, based on the greenhouse crop heat and mass balances allowing for the calculation of inside air temperature and humidity together with crop temperature. This model is valid for a mature non-stressed crop with low-temperature difference between inside and outside.
Fatnassi, Hicham +2 more
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THE RELATION BETWEEN RATE OF TRANSPIRATION AND RATE OF ABSORPTION OF WATER IN PLANTS
American Journal of Botany, 1937THE MOST FIUNDAMENTAL phase of plant water relations in respect to effect on growth is the internal water balance or degree of saturation of the tissues. This is determined by the relative rates of absorption and transpiration. The ratio of absorption to transpiration is therefore more important than the absolute rate of either process.
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