Effect of Rhus typhina Extract on Seedling Growth of Two Turfgrass Species
This study was designed to evaluate the seed emergence and seedlings growth of Lolium perenne L.and and Poa pratensis L.treated by water extracts at different concentration as 0,0.025,0.005,0.100 g/L from pericarp and fallen leaves in soil.Results showed that water ex-tract of Rhus typhina decreased the emergence rate,seedling growth rate,root length,plant height,and biomass of Lolium prenne L.and Poa pratensis L..The inhibitory effect of extract from pericarp and fallen leaves on the seedling's growth of two turfgrass types gradually increased with the increase of concentration.The inhibitory effect of 0.100 g/L from both pericarp and fallen leaves was significantly higher than that of control.Under the same concentration,the inhibitory effect of pericarp was stronger than fallen leaves and the inhibitory effect on Poa pratensis L.was greater than Lolium prenne L.
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