Effects of Ammonium Nutrition on Water Stress, Water Uptake, and Root Pressure in Lycopersicon esculentum Mill |
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| Authors: | Quebedeaux B Ozbun J L |
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| Affiliation: | Department of Vegetable Crops, Cornell University, Ithaca, New York 14850. |
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| Abstract: | 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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