摘要：

The autotoxic effects of Pinus massoniana were studied. The result indicated that the aqueous extracts of leaves, leaves-fall. rotted leaves, roots, rotted roots and the surface soil from mature P. massonia,massoniana stand exhibited significant inhibition on seed germination, radicle growth and ectomycorrhiza4 formation of 1-yr pine seedlings as well as suppressed seedling growth with the exception of leaves'. But aqueous extracts of leaves showed significant stimulation on seedling growth. The order of their inhibitory effects was: soil or rotted leavesrotted rootsrootsleaves-fallleaves.

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