Allelopathy of Water Extract of Cinnamomum camphora Leaf on Seed Germination and Seedling Growth of Festuca arundinacea

The allelopathy of water extract from camphor tree[Cinnamomum camphora(L.)Presl] leaf with different concentration on seed germination and seedling growth of lawn plant tall fescue(Festuca arundinacea Schreb.) was studied.Results showed that there was obvious allelopathic inhibition of water extract of camphor tree leaf on seed germination and seedling growth of receptor plants;and the inhibition effects increased with the increase of concentration of water extract.When the concentration of water extract was 150 mg/mL,seed germination percentage and germination index,seedling length and weight,root length and weight of tall fescue were very significantly different from that of water control(P0.01).The allelopathic inhibition effect on seed germination indices was stronger than that on germination percentage.The inhibition effect on seedling growth of indicators ranked from high to low as root length,seedling length,root weight,seedling weight.It was proved that there were stable allelopathic substances with strong activity in leaves of camphor tree.