Effect of Allelopathy of the Aqueous Extracts of Robina Pseudoacacia and Schima confertiflora on Physiological Activities of Pinus Massoniana Seedling

The effect of allelopathy of Robina pseudoacacia and Schima confertiflora on the physiology activities of Masson Pine seedling was studied,using the biological identification method with litter extract solution.The results showed that chlorophyll content and cell membrane permeability of the receptor plant were increased with different treatments of the two donors wholly;but were reduced with photosynthetic rate and transpiration rate.The nitrogen and phosphorus absorption of donor Schima confertiflora presented a trend of promotion in low concentration and an inhibition in high concentration,on the potassium absorption it expressed a certain accelerative effect.While the effect of nitrogen and potassium absorption of donor Robina pseudoacacia expressed an inhibition in low concentration and a promotion in high concentration,on the phosphorus absorption it expressed a opposite trend.