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Effect of Past an Prevailing Temperatures on the Carbon Dioxide Exchange Capacities of Some Woody Desert Perennials
Author(s) -
Strain B. R.,
Chase Valerie C.
Publication year - 1966
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1935653
Subject(s) - perennial plant , larrea , carbon dioxide , photosynthesis , ecology , respiration , cutting , environmental science , desert climate , botany , biology , shrub , arid
The effect of temperature preconditioning on the net photosynthesis and dark respiration of four woody desert perennials (Larrea divaricata, Hymenoclea salsola, Encelia farinosa, and Chilopsis linearis) was analyzed. After the establishment of stem cuttings or field transplants in a greenhouse, the plants were preconditioned at daytime temperatures of 15°, 30°, or 40°C in a growth chamber for 7—17 days. Carbon dioxide exchange capacities wer then determined at various temperatures. There were distinct species differences in response to the preconditioning treatments which could be correlated with differences in distribution and ecology.