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我国杉木良种化经过十多年的研究,已取得一定的成绩。不久前杉木地理种源试验通过鉴定,各地选出了一批优良种源。如何利用现有科研成果,加快杉木良种化进程,是摆在林业科技人员面前的一项重要课题。杉木无性系育种以近代遗传育种理论为指导,利用已选出的优树,大量进行无性繁殖,培育无性系苗木,并科学地组配造林,实行集约经营,在短期内达到速生、丰产、优质、抗性强的目的。这种育种方法的特点有四:1)见效快,当年选优,当年扦插,第二年即可造林;2)方法比建种子园简便,生产单位容易掌握;3)成本低,不受种子
China’s fir seed improvement after more than 10 years of research, has made some achievements. Not long ago, the geographical provenance test fir through identification, selected a number of good provenance. How to make use of the existing scientific research achievements and speed up the process of fir seedling is an important issue for forestry science and technology personnel. Cunninghamia lanceolata cloning under the guidance of the theory of modern genetic breeding, the use of trees have been selected, a large number of asexual reproduction, nurturing clonal nursery stock and scientifically afforestation, intensive management, in the short term to achieve fast-growing, high yield, high quality , The purpose of strong resistance. This breeding method has the following four characteristics: 1) quick, then selected, cuttings that year, the second year can afforestation; 2) the method is easier than the built seed orchard, the production unit easy to grasp; 3) low cost,