Abstract
The transpirational flux of water from soil to atmosphere is perhaps not in itself of direct physiological importance to the plant, but the water deficits which are a necessary concomitant of the transpirational flux have a profound effect on growth and metabolism. It was for this reason that when, some years ago, I was faced with a study of the water relations of the commercial cotton crop in E. Africa, I concentrated on water deficits rather than transpiration rates. A technique was developed for estimating the average water deficit in the leaves of a group (plot) of plants growing in the field. This consisted of punching leaf disks and expressing their water content as a percentage of their water content when fully turgid (relative turgidity). The disks were rendered turgid by floating on water (Weatherley 1950 Barrs 1962 and Weatherley 1962).
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References
Barrs, H. D., Weatherley, P. E.: A reexamination of the relative turgidity technique for estimating water deficits in leaves. — Austr. J. biol. Sci. 15: 413-428, 1962.
Brewig, A.: Die Regulationserseheinungen bei der Wasseraufnahme und die Wasserleitge-sohwindigkeit in Vicia faba Wurzeln. — J. wies. Bot. 82: 803—828, 1936.
Brouwer, A.: The regulathig influence of transpiration and suction tension on the water and salt uptake by the roots of intact Vicia faba plants. — Acta bot. neerl. 3: 264—312, 1954.
Honert, H. van den: Water transport in plants as a catenary process. — Discuss, of the Faraday Soc. 3:146—163, 1948.
Köhnlein, E.: Untersuchungen über die Höhe des Wurielwiderstandes und die Bedeutung aktiver Wurieltatigkeit für die Wasserversorgung der Pflanzen. — Planta 10: 381—423, 1930.
Macklon, A. E. S.: The soil: plant: atmosphere system; a study of plant water relations. — Ph. D. Thesis, Univ. of Aberdeen, 1962.
Macklon, A. E. S, Weatherley, P. E.: In preparation.
Mees, G. C, Weatherley, P. E.: The mechanism of water absorption by roots. II. The role of hydrostatic pressure gradients across the cortex. — Proc. Roy. Soc. B, 147: 381—391, 1957.
Weatherley, P. E.: Studies in the water relations of the cotton plant. I. The field measurement of water deficits in leaves. — New Phytol. 49: 81—97, 1960.
Weatherley, P. E.: Studies in the water relations of the cotton plant. II. Diurnal and seasonal variations in relative turgidity and environmental actors. — Hew Phytol. 50 : 36—51, 1951.
Weatherley, P. E, Barrs, H. D.: A olimatologioal wind tunnel. — Nature 183:94—96, 1959.
Weatherley, P. E, Slatyer, B. O.: Relationship between relative turgidity and diffusion pressure deficit in leaves. — Nature 179: 1086—1086, 1957.
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© 1965 Springer Science+Business Media Dordrecht
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Weatherley, P.E. (1965). Some Investigations on Water Deficit and Transpiration Under Controlled Conditions. In: SlavÃk, B. (eds) Water Stress in Plants. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3593-4_5
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DOI: https://doi.org/10.1007/978-94-010-3593-4_5
Publisher Name: Springer, Dordrecht
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