Isoda, A. and Aboague, L.M. and Nojima, H. and Takasaki, Y. (1996) Effects of Leaf Movement on Radiation Interception in Field Grown Leguminous Crops : IV. Relation to leaf temperature and transpiration among peanut cultivars. Japanese Journal of Crop Science, 65 (4). pp. 700-706.
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Abstract
Leaf movement and its relationship to radiation interception, transpiration and leaf temperature were investigated in field-grown groundnut cv. Chibahandachi, Tachimasari, Kanto 56, Valencia and Kintoki at Chiba University. During August 1994, leaf movement in the top 5 cm of the canopy was horizontally restrained in treatment plots by covering with a nylon net before measurements were taken at the pod filling stage. Diurnal changes in leaf temperature, transpiration rate, stomatal resistance and radiation interception by leaflets in the uppermost layer of the canopy were subsequently recorded in treated and control plots. During September 1995, infrared thermal images were measured from 1 m above the canopy. The leaf temperatures of treated Tachimasari, Valencia and Kintoki plants were higher than those of control plants, as control plants exhibited leaf temperatures similar to air temperature. Chibahandachi and Kanto 56 control plants exhibited higher leaf temperatures during the afternoon, while the leaf temperatures of treated plants decreased in the afternoon. Control plants intercepted greater radiation than treated Kanto 56, Valencia and Kintoki plants on cloudy days. On clear days, a greater amount of radiation was intercepted by Tachimasari and Kanto 56. Chibahandachi exhibited the greatest transpiration rate, followed by Valencia, Kanto 56 and Tachimasari. The infrared thermal images of Tachimasari and Kintoki were higher than those of Chibahandachi and Kanto 56, and it is suggested that cultivars with high transpiration ability showed active diaheliotropism and cultivars with low transpiration ability exhibited active paraheliotropism
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam Collection |
| Uncontrolled Keywords: | Hellorropism, lnfrared thermal image, Intercepted radiation, Leaf temperature, Transpiration |
| Author Affiliation: | Faculty of Horticulture, Chiba University, Matsudo 648, Matsudo-city, Chiba 271, Japan. |
| Subjects: | Atmosperic Science > Climatology Plant Production Crop Improvement |
| Divisions: | Groundnut |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 08 Jul 2013 13:25 |
| Last Modified: | 08 Jul 2013 13:25 |
| Official URL: | http://dx.doi.org/10.1626/jcs.65.700 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10988 |
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