Phosphorus deficiency decreases stomatal activity and water use of plants
Authors AffiliationsA. Wallace is Professor of Plant Nutrition, University of California, Los Angeles; A. Deutsch is Research Assistant, University of California, Los Angeles (study supported by U.C. Water Resources Center).
Hilgardia 22(8):15-16. DOI:10.3733/ca.v022n08p15. August 1968.
It appears that phosphorus deficiency in plants drastically affects the ability of leaf stomata to open universally in all plant species, but in varying degrees. Failure of the stomata to open results in greatly decreased water use, and in elevated leaf temperatures. These studies indicate that the increased temperature is the cause of at least some phosphorus-deficiency symptoms.
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