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Cuvette Temperatures and Transpiration Rates
Author(s) -
Ritchie Gary A.
Publication year - 1969
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1936257
Subject(s) - cuvette , transpiration , environmental science , atmospheric sciences , ecology , chemistry , botany , biology , photosynthesis , geology , physics , optics
A cuvette which automatically opens between sampling periods and thus reduces internal temperature buildups was developed for use in measuring transpiration rates of intact plants in the field. In a closed cuvette air—temperature buildups of 5°—7°C and needle—temperature buildups of 17°C above ambient air temperatures are not uncommon, and these temperature alterations are reflected in the transpiration of the enclosed foliage. The open—closed cuvette reduced the buildups by 50% or more.