关键词: 滇重楼；种子休眠, 氟啶酮；赤霉素；层积处理；发芽率, 发芽势, 胚率

Abstract: The effects of different concentrations of gibberellin(GA),fluridone(FL) to soak the seeds and different stratification temperature on seed germination and embryo rate of Paris polyphylla var.yunnanensis were studied respectivly to screen the best way to revive the seed of Paris polyphylla var.yunnanensis.The results showed that GA treatment alone,GA+FL combination and sand storage at constant temperature of 20℃ could effectively break the dormancy of the seeds.Among them,the best germination was at 300 mg/L with GA treatment alone, and the germination rate and germination potential were 79.00% and 54.33% respectively.The highest germination rate was 81.33% with GA+FL combination(300 mg/L GA+10 mg/L FL),and the highest germination potential was 54.33% with 300 mg/L GA+0 mg/L FL,and the rotten seed rate was 4.33% with 200 mg/L GA+10 mg/L FL.The seed embryo rate of Paris polyphylla var.yunnanensis increased fastest under constant temperature of 20 ℃ in different temperatures with sand storage.By all accounts of the seeds germination of Paris polyphylla var.yunnanensis,the effects of GA+FL combination and constant temperature of 20℃ sand storage were better than other treatments.That is to say,300 mg/L GA+10 mg/L FL is the optimal seed soaking combination,and constant temperature of 20℃ is optimal for sand storage.

Key words: Paris polyphylla var.yunnanensis, Seeds dormancy, Fluridone, Gibberellin, Stratification;Germination rate, Germination potential, Embryo rate