Relationship between class A pan evaporation and water vapour pressure deficit under plastic house conditions

Eissa, M.M.; Abou Hadid, A.F.; E.B.ltagy, A.S.; Omara, A.A., 1991: Relationship between class A pan evaporation and water vapour pressure deficit under plastic house conditions. Egyptian Journal of Horticulture 18(2): 131-139

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Belko, N.; Zaman-Allah, M.; Diop, N.N.; Cisse, N.; Zombre, G.; Ehlers, J.D.; Vadez, V., 2013: Restriction of transpiration rate under high vapour pressure deficit and non-limiting water conditions is important for terminal drought tolerance in cowpea. Drought stress is a major constraint on cowpea productivity, since the crop is grown under warm conditions on sandy soils having low water-holding capacity. For enhanced performance of crops facing terminal drought stress, like cowpea, water-savin...

Bergamaschi, H.; Vieira, H.J.; Libardi, P.L.; Ometto, J.C.; Angelocci, L.R., 1989: Water deficit in common beans iii. maximum crop evapotranspiration and its relationship with evapotranspiration by the penman method and class a pan evaporation. Maximum evapotranspiration (ETm) of common beans Phaseolus vulgaris L.) and its relationship with evapotranspiration calculated by the Penman method (Kc1 = ETm/ETo) and noncorrected "class A" pan evaporation (Kc2 = ETm/Eo) were quantifie...

Bergamaschi, H.; Vieira, H.J.; Libardi, P.L.; Ometto, J.C.; Angelocci, L.R., 1989: Water deficit in beans. III. Maximum crop evapotranspiration and its relationship with evapotranspiration calculated by the Penman method and class A pan evaporation. In field trials at Piracicaba, Brazil in 1983, Phaseolus vulgaris cv. Aroana 80 was sown on 7 July, 22 July or 4 Aug. Maximum evapotranspiration (ETm) was determined by the soil water balance method and the crop coefficients determined by the rela...

Perez-Martin, A.; Flexas, J.; Ribas-Carbó, M.; Bota, J.; Tomás, M.; Infante, J.M.; Diaz-Espejo, A., 2009: Interactive effects of soil water deficit and air vapour pressure deficit on mesophyll conductance to CO2 in Vitis vinifera and Olea europaea. The present work aims to study the interactive effect of drought stress and high vapour pressure deficit (VPD) on leaf gas exchange, and especially on mesophyll conductance to CO(2) (g(m)), in two woody species of great agronomical importance in t...

Johansson, W., 1970: Calculation of potential evaporation by means of measured or estimated values of global solar radiation, wind velocity and vapour pressure deficit. An equation having different constants for summer and winter conditions was used to calculate monthly potential evaporation using meteorological data for 1963-9; results were compared with those from the Penman, Thornthwaite, Blaney & Criddle and...

Boulard, T.; Baille, A.; Lagier, J.; Mermier, M.; Vanderschmitt, E., 1989: Water vapour transfer in a plastic house equipped with a dehumidification heat pump. Improvement of greenhouse insulation, for example through using a double inflated wall or thermal screens, leads to changes in microclimate of the protected cultivation. The low air exchange rates induces an increase in the inside air humidity and...

Bunce, J.A., 1987: In-phase cycling of photosynthesis and conductance at saturating carbon dioxide pressure induced by increases in water vapour pressure deficit. The leaf to air water vapour deficit was increased suddenly from about 1.0 to 2.5 kPa for single leaves of soybean (Glycine max L. Merr.) plants held at 30.degree. C, 2.0 mmol m-2 s-1 photosynthetic photon flux density (PPFD), and carbon dioxide p...

Machin, J., 1970: The study of evaporation from small surfaces by the direct measurement of water vapour pressure gradients. J. exp. Biol.: 53: 753-762

Machin, J., 1964: The evaporation of water from Helix aspersa. I. The nature of the evaporating surface. II. Measurement of air flow and the diffusion of water vapour. III. The application of evaporation formulae. Journal of Experimental Biology, 41: 759-769

Guckel, W.K.stel, R.L.werenz, J.S.nnatschke, G., 1982: A method for determining the volatility of active ingredients used in plant protection. III. The temperature relationship between vapour pressure and evaporation rate. Pesticide science 13(2): 161-168