Changes of the chlorophyII content， membranous permeability and stom a of Chinese fir treated by aqueous extracts of several source plant

Chinese-fir seedlings were treated with different concentration aqueous extracts from 1eaves and stems of Photinia davidsoniae， Woodwardia japonica，Dicranopteris dichotoma，Castanopsis rgesii，Pinus massoniana，Schima superba，Syzygiu buxifolium，Lonopetalum chinensis and the control(Chinese fir and water)．The results show that the chlorophyll content，aperture and size of stoma are increased markedly，and the membranous permeability of the leaf are decrea sed m arkedly，which are treated by the aqueous extracts of the source plant species after six years． There are no marked effects on the stomatal density，in which the effect of Schima superba on the chlorophyll content and the membranous permeability is the best，compared with the treatments of Chinese fir and water，its chlorophyll content is increa sed by 49．3％ and 52．5％ ．and its membranous permeability is decreased by 30．6％ and 26．3％ ;the effect of Lonopetalum chinensis on the aperture and size of stoma is the best，compared with the treatment of water，its aperture and size of stoma are increased by 27．1％ and 30．3％ ． Meanwhile． the higher the concentration of the aqueous extracts is．the greater the chlorophyll content，stomatal aperture and size are and the lower the membranous permeability is．