significantly promoted seed germination (final germination rate was 8% higher than in controls after 30 days, P < 0.05). Medium exudate concentrations had no effect (P > 0.05); but the highest exu- dates concentration (T5) significantly inhibited seed germination (final germination rate was 19.2% lower than in controls after 30 days, P < 0.05).
Extracts only had a significantly inhibiting effect on P. mala- ianus seed germination at the highest concentration (T5), but the inhibition rate was significantly lower than that of the exudates treatments (Fig. 1).