Changes in Carbohydrate Content and Membrane Stability of Two Ecotypes of Calamagrostis arundinacea Growing at Different Elevations in the Drawdown Zone of the Three Gorges Reservoir

Abstract

Carbohydrate content, especially soluble sugar content, in both ecotypes was more sensitive to flooding stress than membrane stability. Green C. arundinacea had a higher tolerance to submergence than dwarf C. arundinacea, and thus green C. arundinacea can be planted at lower elevations than dwarf C. arundinacea.