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氟化氢熏蒸对大豆植株水分平衡的影响。

Influence of hydrogen fluoride fumigation on the water economy of soybean plants.

作者信息

Poovaiah B W, Wiebe H H

机构信息

Department of Botany, Utah State University, Logan, Utah 84321.

出版信息

Plant Physiol. 1973 Feb;51(2):396-9. doi: 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.

摘要

采用大豆(Glycine max [L] Merr.)研究了氟化氢熏蒸对水分平衡的影响。熏蒸1小时后导致部分气孔关闭,4小时内几乎完全关闭。熏蒸使蒸腾速率大幅降低,同时叶片温度升高。1天后水势升高,但发生坏死时水势急剧下降。白天中断熏蒸的影响在各方面都比连续熏蒸的影响稍轻;夜间熏蒸仅产生轻微影响。夜间的氟化物吸收量也比白天熏蒸时少得多。

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