2. Materials and Methods
2.1 Materials
The seeds of J. mimosifolia were used in this
experiment, which were collected from 55-year-old
plants in March 2012 in Chengdu Wenjiang Park in
China (lat. 30°50' N; long. 103°41' E). The mature
seeds were natural dried on plant and storaged at 4 °C
for spare. Wenjiang belongs to subtropical humid
monsoon climate, the average temperature was
15.8 °C and the average relative humidity was 84%.