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出 处:《贵州林业科技》2011年第2期43-45,共3页Guizhou Forestry Science and Technology
基 金:"十一五"国家科技支撑课题"楸树和水曲柳珍贵用材林培育关键技术研究与示范"(2006BAD24B08)的资助
摘 要:通过三十个无性系在南阳区域的栽培试验,初选7个早期表现优良的无性系.推广到生产中去。提高无性系早期选择的效率,为楸树早期速生小径材培育提供了依据。三十个无性系在南阳区域的栽培试验是全国四个同步造林试验点的重要组成部分(河南洛阳、河南南阳、甘肃小陇山、北京大兴)。通过相同的无性系,全国分别区域的造林试验,提高了选育效率。本实验研究和以往一地选出无性系再做立地类型试验有本质的不同。Through the cultivation experiment of thirty clones in Nanyang, the author selected preliminarily seven excellent clones and promoted it into production. This measurement improved the efficiency of early selection of clone and provided the foundation to breeding the small - diameter lumber of fast - growing in their early stages. The cultivation ex- periment of thirty clones in Nanyang is an important part of the four synchronous forestation sites, in China (Luoyang city in Henan,Nanyang city in Henan, Xiaolong mountains in Ganshu, Daxin district in Beijing). The breeding efficiency was improved through the afforestation test in the various areas of China using the same clones. The research has essential difference from the previous study to select clones.
分 类 号:S722.7[农业科学—林木遗传育种]
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