Abstract
The optimum management of re-vegetation fields, non-destructive testing method for evaluation of environmental stress of plant is now in urgent demand. In this study, characteristics evaluation of frequency of detected acoustic emission waves generated from plants is going to be performed, applying bubble motion model. In water stressed conditions, elastic waves are emitted from gas-liquid flow in plant vessel. The characteristic of frequency of detected elastic waves by AE is similar to the analytical results by using the Rayleigh-Plesset equation. Thus, the water stress condition in plant is quantitatively evaluated by AE.