【摘要】 研究了贮藏条件对紫金牛属植物种子发芽率的影响 ,发现低温湿砂贮藏比较适合 ,在 4℃下贮藏 4 70d的朱砂根种子还有超过 83%的发芽率。 3mg L的赤霉酸 (GA3)可以促进紫金牛属植物种子提早萌发 ,提高发芽率。在试验条件下 ,聚乙二醇 (PEG)预处理与否对提高朱砂根种子的发芽率、发芽指数和活力指数都没有显著影响。PEG或浓硫酸预处理甚至还降低紫金牛、酸苔菜和美丽紫金牛种子的发芽率。在实验中还观察到紫金牛、酸苔菜和朱砂根种子具有多胚现象 ,血党具有胎萌现象 ,朱砂根冬季开花现象 ,莲座紫金牛种子具有 34%的败育率 ,紫金牛和酸苔菜下胚轴比其它种具有更强的伸长能力。更多还原

【Abstract】 Effects of storage condition on seeds of Ardisia were reported. Lower temperature and appropriate humidity were necessary. The seeds of Ardisia crenata had over 83% viability after 470 d wet storage at 4 ℃ in refrigerator.Three mg/L of GA₃ was benefit to seed germination of Ardisia. Pretreatment with polyethylene glycol （PEG） could not elevate the seed germination percentage, germination index and vigor index of Ardisia crenata . Pretreatment with PEG or saturated sulfuric acid even brought down the seed germination rate of A japonica, A solanacea and A elegans. Some phenomena, such as polyembryony in A japonica, A solanacea and A crenata, vivipary in A brevicaulis, flowering in winter in A crenata, high percentage （34%） of abortion in A primulaefolia, more stronger elongated capability of hypocotyls in A japonica and A solanacea than that of other species were described.更多还原