Method for improving seed germination rate and germination rate stability of litsea cubeba

The invention discloses a method for improving seed germination rate and germination rate stability of litsea cubeba. The method comprises the following steps of (1) putting litsea cubeba seeds in a shade cool and ventilation position being 10 to 25 DEG C; spraying water to maintain a moist state; removing outer peel through retting; performing turning 3 to 6 times every day; performing retting for 7 to 15 days until the outer peel is totally removed; (2) putting the seeds without the outer peel into plant ash water to be soaked; (3) slightly kneading and washing the seeds; removing outer layer wax seed coat; (4) sequentially performing treatment by various reagents according to the following steps of 1, putting the seeds into 24 to 25 percent of PEG-6000 to be soaked for 20 to 24 h; then,flushing the seeds by flowing water for 1 to 2 h; 2, putting the seeds into gibberellin with the concentration being 35 to 40 mg/L to be soaked for 20 to 24 h; 3, putting the seeds into a mixed solution containing 45 to 50 m