Leaf and Boll Temperatures in the Face Experiment

Bruce A. Kimball and Paul J. Pinter, Jr.


Increasing the CO2 concentration around plant leaves is known to cause partial stomatal closure, which can reduce transpirational cooling and raise leaf temperatures. To determine the degree of this effect with cotton under free-air CO2 enrichment (FACE) conditions, measurements of foliage temperature were made with an infrared thermometer on cotton in the large cooperative FACE experiment conducted at the University of Arizona Maricopa Agricultural Center during the 1989 growing season.

Reprinted from 1990 Proceedings: Beltwide Cotton Production Research Conferences pg. 720
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998