美国落羽杉育苗、造林技术研究  

Studies on seedling growing and afforestation technologies of American Taxodium distichum

作　　者：王永昌 张新勇 张继凡 李伟 仲伟勤 陆兴安 汪企明[4] 

机构地区：[1]连云港市林业技术指导站,江苏连云港222001 [2]东海县多管局,江苏东海222300 [3]东海县李埝林场,江苏东海222332 [4]江苏省林业科学研究院,江苏南京211153

出　　处：《江苏林业科技》1999年第3期14-19,共6页Journal of Jiangsu Forestry Science & Technology

基　　金：连云港市科委下达的课题

摘　　要：研究出了简单易行、经济实用的落羽杉种子处理技术,可保证有胚种子全部发芽,场圃发芽率达70%以上,比对照发芽率提高30000%,开始发芽提早3～40d,发芽持续期减少35～53d。分析了落羽杉不同种源、家系、树种在种子千粒重,发芽率和苗期、幼林期生长的遗传变异。系统地掌握了落羽杉种子温床播种,芽苗移栽和容器育苗、造林的关键技术,苗木产苗量比文献高产记录增产3136%,总经济效益提高50%以上,容器苗造林成活率达100%。摸索出落羽杉无性繁殖的有效技术———夏季嫩技扦插,10～15d愈合,30～45d生根,平均成活率达90%以上。同时分析了落羽杉不同种源、家系和树种扦插成活率和生根力的遗传变异。This study had found a simple utility technology which was very fit for Jiangsu Province.It could ensure that all the embryo seeds germinated.The inheritance and variation among different provenances,families and species were analysed in the aspects of weight of thousand seeds,germination rate and growth during seedling to juvenile stage.The key technology,which was how to inseminate the seeds of T.distichum in the warm bed,to transplant the shoots,to grow seedling in the container and to afforest and area with T.distichum ,were grasped systematiclly.The yield of planting stock was increased 31 36% than the highest record of documents.The total economic results were increased 50%.The afforestation survival ration of container seedling achieved 100%. This study also found a effective and fitted to the conditions of Jiangsu Province technology of T.distichum asexual multiplying,inserting tender branches into seedbed in the summber. Authors address:The Forestry Technology Giudance Station of Lianyungang City,Jiangsu Lianyungang 222006,China

关 键 词：落羽杉 种子育苗 扦插育苗 容器育苗 造林 

分 类 号：S791.34[农业科学—林木遗传育种]