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Proceedings Paper

Relationship between leaf temperature and photosynthetic ratio of cherry tree
Author(s): Atsushi Nakashima; Yasushi Ogura; Motoharu Fujigaki; Hiroki Tanikawa; Masafumi Miwa
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Paper Abstract

We investigated the relations between leaf-air temperature and photosynthetic ratio of cherry trees in order to obtain the fundamental data for applying the biological information to the remote sensing system. Some branches of Prunus jamasakura were cut and put into the water pot prompt once per month from May to October 2001. We measured the surface temperature of ten leaves and photosynthetic ratio every five second for ten minutes every measurement air temperature condition at 20, 25, 30 and 35°C with 1000 PAR light intensity. Result as, there was recognized the small significantly relation between leaf temperature and photosynthetic ratio because leaf temperature is usually changed with air temperature. Although, there was recognized large significantly correlations between the difference of the leaf temperature and air temperature and photosynthetic ratio. It is thought that transpiring in healthy plants are active for absorption of water and it cause to drop the leaf temperature. This research showed that the health of cherry trees could be diagnosed for measurement of the difference of leaf and air temperature.

Paper Details

Date Published: 17 March 2003
PDF: 8 pages
Proc. SPIE 4879, Remote Sensing for Agriculture, Ecosystems, and Hydrology IV, (17 March 2003); doi: 10.1117/12.462406
Show Author Affiliations
Atsushi Nakashima, Wakayama Univ. (Japan)
Yasushi Ogura, Wakayama Univ. (Japan)
Motoharu Fujigaki, Wakayama Univ. (Japan)
Hiroki Tanikawa, Wakayama Univ. (Japan)
Masafumi Miwa, Wakayama Univ. (Japan)

Published in SPIE Proceedings Vol. 4879:
Remote Sensing for Agriculture, Ecosystems, and Hydrology IV
Manfred Owe; Guido D'Urso; Leonidas Toulios, Editor(s)

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