Search

The equipment described makes use of a continuous measured flow (v) of dry N2O into a porometer cup attached to a known leaf area (a). The gas within ...

Describes the theory, construction and calibration of a new type of diffusion porometer in which the leaf is placed inside the porometer chamber; it i...

Details are given of the construction of a diffusion porometer for measuring stomatal resistances of leaf surfaces, based on principles described in H...

Details are given of the construction of a diffusion porometer for measuring stomatal resistances of leaf surfaces, based on principles described in F...

Modern porometers measure the rate at which water vapour diffuses out of leaves. The stomatal resistance can be deduced directly from this measurement...

For a continuous flow porometer, stomatal resistance can be calculated from a measurement of the relative humidity of the chamber air if the leaf and ...

The rate of evaporation from a crop is expressed in terms of weather parameters and a quantity r_S derived from profiles of temperature, humidity, and ...

Comparisons made over a wide range of soil matric potentials showed minimum resistance of 0.5 s/cm for cotton and 1.0 s/cm for maize. Readings made in...

Graphs and histograms are given showing changes in the stomatal resistance of Vicia faba leaves during the day as related to leaf insertion and date o...