Basic Study on Estimating Water Stress of a Plant Using Vibration Measurement of Leaf
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概要
- 論文の詳細を見る
A new noninvasive method for estimating the water stress of a plant was proposed. In order to investigate this method, we first examined the characteristic frequency of an individual leaf picked from the plant, and obtained the result that its characteristic frequency decreased in proportion to the reduction in the water content of the leaf. Next, we applied this method to a leaf on a branch and confirmed the same tendency when the water stress was increased by stopping the water supply of a plant cultured in water. From these results, it was suggested that the water stress of the plant could be estimated from the vibration measurement of the leaf. Lastly, the relationship between the water potential of the leaf and its elastic constant was discussed with the soil-plant-atmosphere-continuum model (SPAC model), and Young's modulus of a tomato leaf was roughly estimated.
- 2013-07-25
著者
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Sugimoto Tsuneyoshi
Faculty Of Engineering Toin University Of Yokohama
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Ohaba Motoyoshi
Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
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Hosoya Hiroshi
Faculty of Engineering, Toin University of Yokohama, Yokohama 225-8503, Japan
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Sano Motoaki
Faculty of Engineering, Toin University of Yokohama, Yokohama 225-8503, Japan
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Shibusawa Sakae
Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
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Sugimoto Tsuneyoshi
Faculty of Engineering, Toin University of Yokohama, Yokohama 225-8503, Japan
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