Influence of Hydrogen Fluoride Fumigation on the Water Economy of Soybean Plants
- 1 February 1973
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 51 (2) , 396-399
- https://doi.org/10.1104/pp.51.2.396
Abstract
The influence of hydrogen fluoride fumigation on water economy was studied using soybean (Glycine max [L] Merr.). Fumigation caused partial stomatal closure in 1 hour and practically complete closure within 4 hours. The transpiration rate was greatly reduced by fumigation, while the leaf temperature was increased. Water potential increased after 1 day but fell drastically when necrosis occurred. Effects of interrupted fumigation during the day were somewhat less severe in all respects than those of continuous fumigation; nighttime fumigation caused only minor effects. Fluoride uptake was also much less from nighttime than from daytime fumigations.Keywords
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