【摘要】 以地枫皮（Illicium difengpi B. N. Chang）种子为材料，探讨地枫皮种子的发芽特性及最适萌发环境，测定种仁重、种壳重等相关指标，研究不同浸种时间（0、1、2、3、4、5 d）、不同基质含水量（30%、50%、70%）、不同播种深度（0、1、2、3、4 cm）、不同光照条件（全黑、自然光）、不同土壤基质（沙土、肥土、黄土、混合土、珍珠岩）、不同赤霉素打破休眠处理（共9个组合）对地枫皮种子发芽的影响。结果表明，地枫皮种子长宽比接近1.5∶1，种仁重/种壳重平均为2.40；浸种4 d及基质含水量为70%时种子发芽率皆为该条件下最高；播种深度1 cm时发芽率最高；浸种时间、播种深度、光照、播种基质及赤霉素打破休眠处理均显著影响种子的发芽率。在黑暗条件下，将浸泡4 d的经过打破休眠处理（在浓度为100 mg/L的赤霉素中浸泡12 h时取出进行30 h的层积处理之后再于100 mg/L赤霉素中浸泡12 h）的种子播于珍珠岩基质中，播种深度以1 cm为宜，使基质含水量维持在70%，可有效提高其发芽率。更多还原

【Abstract】 Using Illicium difengpi B. N. Chang seeds as materials,the germination characteristics and the optimal germination environment of Illicium difengpi seeds were investigated,and the seed kernel weight and the seed shell weight were determined. The effects of different soaking time(0,1,2,3,4,5 d),different water content of substrate(30%,50%,70%)and different sowing depth(0,1,2,3,4 cm),different light conditions(all black,natural light),different soil substrates(sandy soil,fertilized soil,loess,mixed soil,perlite),and different gibberellins breaking dormancy treatments(a total of 9 combinations)on the germination of Illicium difengpi seeds were studied. The results showed that the length-to-width ratio of Illicium difengpi seeds was close to 1.5∶1,and the average ratio of seed kernel weight to seed shell weight was 2.40. The germination rate was highest when seeds were soaked for 4 days and the water content of substrate was 70%. The germination rate was highest at a sowing depth of 1 cm. Soaking time,sowing depth,lighting,sowing substrate,and gibberellin treatment to break dormancy all significantly affected the germination rate of seeds. Under dark conditions,seeds soaked for 4 days and treated with gibberellin to break dormancy(soaked in 100 mg/L gibberellin for 12 hours,removed for 30 hours of stratification treatment,and then soaked in 100 mg/L gibberellin for another 12 hours)were sown in perlite substrate at a depth of 1 cm,maintaining a substrate water content of 70%,which could effectively improve their germination rate.更多还原