Objective:To determine the influence of the aqueous extraction of the fallen leaves of Castanea mollissima on the germination rate and seedling growth of the Pinellia pedatisecta seeds

and to provide the reference of the rationality for the intercrop of C.mollissima and P.pedatisecta.Method:The germination rate

growth index of seedling and enzymatic activity of superoxile dismutase（SOD）

catalase（CAT） and peroxidal（POD） of the seeds of P.pedatisecta were investigated with distilled water as the blank by dealing with different concentrations of aqueous extraction（20

40

60

80 g·L-1） of the fallen leaves of C.mollissima.Result:When the concentration was below 60 g·L-1

the germination rate was above 87% and the average height of seedling was above 8.8 cm

with no significant difference compared with the control.While the concentration reached to 80 g·L-1

the average germination rate was 61.33% and the average height of seedling was 7.60 cm

with significant difference compared with the contro（P <0.01）.The root length of all treated groups was smaller than the average of the control

i.e.2.90 cm（P <0.05）.The number of the laterals dealt with the concentration 20 and 40 g·L-1 increased（P < 0.05

0.01respectively）

while it diminished under the concentration 60 and 80 g·L-1（P < 0.01）.The enzymatic activity of SOD

CAT and POD of the leaf blade of P.pedatisecta under different dealt concentration had significant difference compared with the control（P < 0.01）.Conclusion:When the concentration was below 60 g·L-1

there was no signifi-cant influence on the germination rate and seedling growth

but there was some difference on the root length

the num-ber of laterals

and the enzymatic activity of SOD

CAT and POD of the leave blade under high concentration.