杉木材性株内的变异Ⅱ.管胞形态的变异  

VARIATION OF WOOD PROPERTIES WITHIN TREES OF CHINESE FIR Ⅱ.VARIATION OF TRACHEID MORPHOLOGY

作　　者：姜笑梅[1] 骆秀琴[1] 陈益泰[1] 文济伟 

机构地区：[1]中国林业科学研究院木材工业研究所,中国林业科学研究院亚热带林业研究所

出　　处：《林业科学》1997年第5期441-446,共6页Scientia Silvae Sinicae

基　　金：林业部世界银行贷款国家造林项目科研推广计划木材材性课题;IDRC资助的农用林项目

摘　　要：对浙江产杉木株内不同高度和圆周不同方位上木材的管胞长度、宽度、长宽比的径向变异模式和木材力学性质与管胞形态的相关关系进行了测定和分析。结果表明：管胞长度、宽度和长宽比的径向变异模式，在株内不同高度和圆周不同方位上大致相似（长宽比在不同方位上除外），管胞形态与年龄呈显著正相关（在０．０１水平）。广义方差分析表明在株内不同高度上，管胞长度、宽度、长宽比差异不显著；在圆周不同方位上长宽比差异显著，其余两项末表现出显著差异；不同年龄间管胞长度、宽度、长宽比均差异显著。在不同高度上，三项力学性质中，只有抗弯强度和管胞长度０．０５水平显著相关，其余相关不显著。The differences and radial variation patterns of tracheid length, width. slendemess and the relationship between the mechanical properties and tracheid morphology among different heights and four cardinal sides within 5 Chinese Fir trees from Zhejiang province were detemined and analysed. The profiles of tracheid morphology at different heights and different carinal sides are roughly similar (except the profiles of slendemess at cardinal sides). There are significant positive comalations between the tracheid morphology and age. Boad variance analysis shows that there are no significant differences between tracheid morphology at different heights and different cardinal sides(except the slendeness at cardinal sides). There are significant diffbrences between tracheid morphology at different ages. MOR, one of main mechanical properties, significantly comelates with tracheid length, any correlations between other mechanical properties and tracheid morphology cannot find.

关 键 词：杉木 管胞长度 管胞宽度 长宽比 株内变异 

分 类 号：S791.27[农业科学—林木遗传育种] S781.2[农业科学—林学]