【摘要】 为促进栎属植物引种驯化和开发利用,以北美红栎和沼生红栎种子为试验材料,采用赤霉素、浓硫酸、热水、聚乙二醇、氢氧化钠、低温沙藏、物理去壳、去壳后赤霉素处理等18种处理方法,研究不同处理对两种栎属植物种子出苗状况的影响。结果表明:北美红栎1 000 mg·L^-1赤霉素浸种2、4、6,浓硫酸10、20 min,30%聚乙二醇浸种2、4、6 h,物理去壳和去壳后赤霉素处理均能显著增加北美红栎出苗率。1 000 mg·L^-1赤霉素浸种6 h、浓硫酸20 min、低温沙藏、物理去壳、去壳后赤霉素处理分别能使北美红栎平均出苗时间提前14.79、11.52、10.42、14.75、15.82 d。沼生红栎种子1 000 mg·L^-1赤霉素处理（2、4、6 h）、物理去壳、去壳后赤霉素处理均能显著提高沼生红栎种子出苗率。1 000 mg·L^-1赤霉素浸种6 h、低温沙藏、物理去壳、去壳后赤霉素处理分别能使沼生红栎种子平均出苗时间提前16.09、13.98、18.85、21.45 d。赤霉素、物理去壳处理方法对北美红栎和沼生红栎种子出苗率提高、出苗平均时间缩短具有明显效果。更多还原

【Abstract】 In order to promote the introduction,domestication and development of Quercus L.,the trials used 18 kinds of treatments including gibberellin,concentrated sulfuric acid,hot water,polyethylene glycol,sodium hydroxide,low-temperature sand reservoir,physical shelling,and post-shell gibberellic acid to study the effects of different treatments on seed emergence status of two species of Quercus L.The treatments were used for the seeds of Quercus rubra L.and Quercus shumardii.The results showed that 1 000 mg·L^-1 gibberellin 2,4 and 6 h,concentrated sulfuric acid 10 min,20 min,30% polyethylene glycol soaking 2,4 and 6 h,the physical shelling and post-shell gibberellic acid treatments could significantly increase the emergence rate of Quercus rubra L..1 000 mg·L^-1 gibberellin soaking for 6 h,concentrated sulfuric acid for 20 min,low-temperature sand reservoir,physical shelling,and gibberellin treatment after shelling could advance the average emergence time of Quercus rubra L.by 14.79,11.52,10.42,14.75 and 15.82 days.The seedling germination rate of Quercus shumardii could be significantly improved by 1 000 mg·L^-1 gibberellin（2,4 and 6 h）,physical shelling,and gibberellin treatment after shelling.1 000 mg·L^-1 gibberellin for 6 h,low-temperature sand reservoir,physical shelling,and gibberellin treatment after shelling,respectively,could advance the average seedling emergence time of Quercus shumardii by 16.09,13.98,18.85 and 21.45 days.Gibberellin and physical shelling methods showed obvious effects on the increase of seedling emergence rate and the shorten of average emergence time for the Quercus rubra L.and Quercus shumardii.更多还原