Effect of misting on transpiration and conductances of a greenhouse rose canopy

Factors Affecting the Performance of Greenhouse Cucumber Cultivation-A Review

“…Montero et al, (2001) observed no significant reduction of crop stomatal conduction when air vapour pressure deficit increased from 1.4 kPa to 3.4 kPa. However, use of fog cooling increased crop stomatal conductance and indicated maximum crop stomatal conductance when solar radiation exceeded 300 W m -2 in Mediterranean greenhouses (Baille et al, 1994a;Katsoulas et al, 2001). According to Bakker (1991), under high light intensity and at ambient CO 2 concentration (350 μmol mol -1 ), cucumber has been found to have a stomatal resistance of 50 s m -1 .…”

“…For short periods, when the air vapour pressure deficit increases, stomata begin to shut down gradually to reduce water stress (Choudhury and Monteith, 1986). Kittas et al, (2001) observed that increasing greenhouse air exchange rate by means of forced ventilation resulted in an increase of canopy to air VPD with a decrease of crop stomatal conductance by 20% compared to natural ventilation.…”

Relationships of photosynthetic photon flux density, air temperature and humidity with tomato leaf diffusive conductance and temperature

“…It is interesting to remark that leaf conductance in the lower plant layers was more responsive to high VPD values (Fig. 1) (Boulard et al 1991b;Katsoulas et al 2001;Furlan et al 2001;Streck et al 2002). The gs values at the adaxial surface of the leaves were lower than at the abaxial surface (Fig.…”

Irrigation water consumption modelling of a soilless cucumber crop under specific greenhouse conditions in a humid tropical climate

“…Another simplified combined method widely accepted for the estimation of the hourly transpiration rate under greenhouse climatic conditions is the one proposed by BAILLE et al (1994a). This method has been successfully applied to rose (KATSOULAS et al, 2001) and ornamentals (BAILLE et al, 1994b).…”