Effects of ammonium nutrition on water stress, water uptake, and root pressure in Lycopersicon esculentum Mill

Ammonium (NH4 +) nutrition inhibits water uptake and root exudation and decreases leaf water potential of tomato plants grown in solution culture. This inhibition is readily reversible by NO3 - for short term exposures to NH4 +; however, recovery is delayed following long term exposures.

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1973-12, Vol.52 (6), p.677-679
Main Authors: Quebedeaux, B, Ozbun, J.L
Format: Article
Language:English
Subjects:
Dehydration
Exudation
Nutrient solutions
Nutrition
Plant roots
Plants
Quaternary ammonium compounds
Root pressure
Short Communications
Sugar beets
tomatoes
Water uptake
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Description
Summary:Ammonium (NH4 +) nutrition inhibits water uptake and root exudation and decreases leaf water potential of tomato plants grown in solution culture. This inhibition is readily reversible by NO3 - for short term exposures to NH4 +; however, recovery is delayed following long term exposures.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.52.6.677