Effect of antitranspirant treatment on the water balance of pine seedlings, under different climatic and soil moisture conditions

J. Gale*, A. Poljakoff-Mayber, I. Nir, I. Kahane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Antitranspirant treatment with 'Tag' - a polyethylene based emulsion-reduced transpiration and increased height of potted pine seedlings under simulated hot and dry conditions when soil was moist. Under cool, humid conditions reduction of transpiration was very much less and growth was slightly reduced. Application of antitranspirants to pine seedling transplants, under hot dry field conditions, failed to improve, their water balance or to reduce mortality. Physiological tests made during the field trial and experiments with potted seedlings showed that when the soil is dry xeromorphic plants efficiently reduce their water loss and under such conditions anti-transpirants are of no benefit. It is calculated that antitranspirants would only be advantageous under moist soil and high evaporative demand conditions.

Original languageEnglish
Pages (from-to)81-89
Number of pages9
JournalPlant and Soil
Volume24
Issue number1
DOIs
StatePublished - Feb 1966

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