TTC染色によるササ植生の活性度評価手法

抄録

Developing an estimation method for viability of dwarf bamboo (Sasa senanensis (Franchet et Savatier) Rehder var. senanensis) rhizomes, the absorbance as an activity of the rhizomes was measured using TTC (triphenyl tetrazolium chloride) dyeing. As a result, the absorbance peak in living rhizomes appeared at 480nm of wavelength, while that in dead ones did not. Moreover, through a series of tests on hydrological environment such as groundwater level, duration of existence below water level and a change of water level, it was clarified that dwarf bamboo loses the activity below water level more than 30 days. Based on these findings, the method expects to be used as the objective judgment for viability of dwarf bamboo, when we conduct the techniques to prevent dwarf bamboo from invading a wetland at Sarobetsu in northernmost Hokkaido by controlling the water level.