Comparison of leaf tissue turnover for Leymus chinensis and Phragmites communis after grazing Effects of Cutting on Leaves Net Growth and Net Herbage Accumulation in Festulolium PROGRESS IN STUDIES OF THE EFFECTS OF DEFOLIATIONON REGROWTH AND PRODUCTION IN GRASS PASTURE Effects of Cutting on the Lamina Tissue Turnover for Perennial Ryegrass Effects of Cutting on Leaf Tissue Turnover for White Clover