CAJ | 학술논문

以11个楸树杂种无性系3年生幼树树干为材料，分析了木材材性的26个性状。结果表明：木材的基本密度、气干密度、纤维长度、木纤维比量和导管比量等材性性状在无性系间存在极显著差异，且重复力较大，受遗传控制较强，其遗传变异系数（ GCV）分别为21．77％、34．09％、5．51％、7．52％、19．58％；因此在进行楸树无性系早期材性选择时，只需要分析木材密度、纤维长、木纤维比量、导管比量即可做出对无性系材性的初步评价。通过主成分和聚类分析可知，11个无性系在材性性状方面具有4个类型，第一类为无性系002－1、004－1的木材，密度大、纤维长，但胸径生长量小；第二类为无性系008－1，生长量中等，木材密度相对较小；第三类为无性系015－1、1－2、1－3、1－4、2－1、2－2、9－1、013－1，生长量、木材密度和纤维长度处于中等水平；第四类为无性系001－1，生长量最大，但木材密度和纤维长度中等。
이11개추수잡충무성계3년생유수수간위재료，분석료목재재성적26개성상。결과표명：목재적기본밀도、기간밀도、섬유장도、목섬유비량화도관비량등재성성상재무성계간존재겁현저차이，차중복력교대，수유전공제교강，기유전변이계수（ GCV）분별위21．77％、34．09％、5．51％、7．52％、19．58％；인차재진행추수무성계조기재성선택시，지수요분석목재밀도、섬유장、목섬유비량、도관비량즉가주출대무성계재성적초보평개。통과주성분화취류분석가지，11개무성계재재성성상방면구유4개류형，제일류위무성계002－1、004－1적목재，밀도대、섬유장，단흉경생장량소；제이류위무성계008－1，생장량중등，목재밀도상대교소；제삼류위무성계015－1、1－2、1－3、1－4、2－1、2－2、9－1、013－1，생장량、목재밀도화섬유장도처우중등수평；제사류위무성계001－1，생장량최대，단목재밀도화섬유장도중등。
We studied 26 wood property characters of 11 three-year seedlings trunk of Catalpa bungei C.A.Mey hybrid clones . The wood basic density, air dry density, fiber length, wood-fiber percentage and vessel percentage have highly significant differences between clones with higher repeatability and stronger genetic control .The genetic variation coefficient ( GCV) were 21.77%, 34.09%, 5.51%, 7.52%and 5.51%, respectively.Analyzing the wood density , fiber length, wood-fiber percentage and vessel percentage can make a preliminary evaluation of wood property during the early clonal wood property selection .By the principal components and cluster analysis , eleven clones in wood property had four groups , the first group was clone 002-1 and 004-1 with higher wood density and fiber length , but with decreased DBH growth , the second group was 008-1 with medium growth and relatively low wood density;the third group was clones 015-1,1-2,1-3,2-1,2-2,9-1 and013-1 with medium growth , wood density and fiber length;the fourth group was 001-1 with the highest growth , the medium wood density and fiber length .