Transpiration rate measurement using miniature temperature/humidity sensors.
A novel method for the evaluating the transpiration rate (TR) has been proposed. Miniature temperature/humidity loggers were attached onto the leaf surface of a mangrove plant, Bruguiera gymnorrhiza, via a spacer. TR values were calculated using the mass-balance equation; the results showed good agreement with those measured using a conventional porometer when the plant root was surrounded by water. In a saline environment, on the other hand, the correlation became poor. The method was shown to require not only minimal invasion, but also a very short time for attaching leaves.
Sasaki
Satoshi
S
School of Bionics, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan. sasaki@bs.teu.ac.jp
Amano
Tatsuya
T
D002623:Chemistry Techniques, Analytical / Q000295:instrumentation* / Q000379:methods*; D006813:Humidity; D007700:Kinetics; D018515:Plant Leaves / Q000502:physiology; D018526:Plant Transpiration; D043982:Rhizophoraceae / Q000502:physiology; D013499:Surface Properties; D013696:Temperature; D014867:Water / Q000032:analysis
D014867:Water