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Relationship Between Transpiration and the Internal Water Relations of Plants 1
Author(s) -
Ehlig C. F.,
Gardner W. R.
Publication year - 1964
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1964.00021962005600020001x
Subject(s) - transpiration , turgor pressure , chemistry , agronomy , horticulture , environmental science , biology , photosynthesis , biochemistry
Synopsis Below a characteristic diffusion pressure deficit value for each plant, the transpiration rate was proportional to the potential transpiration. Above this value, the transpiration rate tended to decrease, rapidly at first and then more slowly, with increasing DPD. The relative rate of water loss from initially turgid detached leaves decreased very markedly with decreasing water content at a water content of about 90% of that at full turgor and corresponding to a DPD of about 10 to 15 bars.