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Showing 12 results

A continuous flow porometer.

Published online: 01 Jan 1973

Authors: Parkinson, K. J. & Legg, B. J.

Content type: Journal article

Journal title: Journal of Applied Ecology

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 ...

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A null-balance diffusion porometer suitable for use with leaves of many shapes.

Published online: 01 Jan 1973

Authors: Beardsell, M. F. & Jarvis, P. G. & Davidson, B.

Content type: Journal article

Journal title: Journal of Applied Ecology

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...

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A diffusive resistance porometer for field use. 1. Construction.

Published online: 11 Jan 1971

Authors: Stiles, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

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

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A diffusive resistance porometer for field use. 2. Theory, calibration and performance.

Published online: 11 Jan 1971

Authors: Monteith, J. L. & Bull, T. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

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A diffusive resistance porometer for field use. 1. Construction.

Published online: 21 Dec 1971

Authors: Stiles, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

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

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Stomatal resistance in different gases.

Published online: 01 Jan 1978

Authors: Day, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

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

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Temperature corrections to measurements made with continuous flow porometers.

Published online: 01 Jan 1980

Authors: Parkinson, K. J. & Day, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

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 ...

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The measurement and control of stomatal resistance in the field.

Published online: 31 Dec 1966

Authors: Monteith, J. L. & Szeicz, G. & Waggoner, P. E.

Content type: Journal article

Journal title: Journal of Applied Ecology

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

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Construction, calibration and field use of a rapid-reading viscous flow porometer.

Published online: 01 Jan 1973

Authors: Downey, L. A. & Anlezark, R. N. & Muirhead, W. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

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...

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A diffuse resistance porometer for field use. 2. Theory, callbration and performance.

Published online: 21 Dec 1971

Authors: Monteith, J. L. & Bull, T. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

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...

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