USE OF THE INFRARED TOTAL ABSORPTION METHOD FOR ESTIMATING THE TIME COURSE OF PHOTOSYNTHESIS AND TRANSPIRATION
- 31 January 1948
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Research
- Vol. 26c (1) , 94-107
- https://doi.org/10.1139/cjr48c-010
Abstract
The type of apparatus designed by Dingle and Pryce for determining the concentration of carbon dioxide in air by non-spectroscopic measurement of its absorption of infrared has been modified so as to increase its accuracy greatly. Less than one part by volume of carbon dioxide in a million of air can now be measured at speeds ranging from 10-min.-interval to continuous readings. Water vapor can also be measured accurately and continuously.Examples are given of the use of the technique in following the time course of photosynthesis and transpiration, including a correlation of the courses of these processes with leaf temperature and stomatal movement during rapid wilting of a detached leaf of Pelargonium.This publication has 1 reference indexed in Scilit:
- The estimation of small quantities of carbon dioxide in air by the absorption of infra-red radiationProceedings of the Royal Society of London. B. Biological Sciences, 1940