不同水温浸种和播种基质对檀香种子萌发的影响  

Effects of Different Water Temperature Soaking and Sowing Substrateon Seed Germination of Santalum album L.

作　　者：李文志 徐章飞 李希晓 喊亮 徐保燕 侯雄辉 Li Wenzhi;Xu Zhangfei;Li Xixiao;Han Liang;Xu Baoyan;Hou Xionghui(Forestry Research Institute of Dehong Prefecture,Yunnan Province,Ruili,Yunnan 678600,China)

机构地区：[1]云南省德宏州林业科学研究所,云南瑞丽678600

出　　处：《绿色科技》2023年第21期96-99,共4页Journal of Green Science and Technology

摘　　要：檀香种子在常规条件下发芽期长、出苗不整齐、发芽率较低。为提高檀香种子发芽率,保证出苗整齐,通过开展不同水温浸种和不同播种基质处理对檀香种子萌发的对比试验,筛选出檀香种子萌发的最佳条件。结果表明:不同水温浸种对檀香种子发芽率存在显著差异,采用70~80℃热水浸泡种子到自然冷却,再用冷水浸泡24 h时,种子发芽率最高,达78.7%,显著高于其他3种处理和对照;不同播种基质对檀香种子发芽率也存在显著差异,播种基质选用江沙和火烧土发芽率较高,分别为77.0%和76.0%,且二者间无显著差异。建议在檀香播种育苗实践生产中,播种前采用70~80℃热水浸泡种子到自然冷却,再用冷水浸泡24h时后播种,播种基质选用江沙或火烧土,能大幅提高种子发芽率,并且发芽期短、出苗整齐。Santalum album L.seeds have long germination period,irregular emergence and low germination rate under conventional conditions.In order to improve the germination rate and orderly emergence of Santalum album L.seeds,the best conditions of Santalum album L.seed germination were selected through the comparative test of different water temperature soaking and different sowing media treatment.The results showed that the germination rate of Santalum album L.seed was significantly different with different water temperature soaking.When the seeds were soaked in hot water at 70~80℃to cool naturally,and then soaked in cold water for 24h,the germination rate was the highest,reaching 78.7%,which was significantly higher than the other three treatments and the control.The germination rate of Santalum album L.seed was significantly different among different sowing substrate.The germination rate of Santalum album L.seed was 77.0%and 76.0%respectively in river sand and burnt soil,and there was no significant difference between them.It is suggested that in the practical production of Santalum album L.seeding and seedling raising,the seeds should be soaked in hot water at 70-80℃before seeding to cool naturally,and then soaked in cold water for 24h before seeding.The sowing substrate should choose river sand or burnt soil,which can greatly improve the germination rate of seeds.The germination period is short with neat emergence.

关 键 词：檀香 水温 播种基质 发芽率 

分 类 号：S792[农业科学—林木遗传育种]