柴松与油松针叶和木材解剖结构的差异.pdf

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1、41卷第12期东北林业大学学报V()1．4lNo．122013年l2月JOURNALOFNORTHEASlTFORERYUNIVERSITYDec．2Ol3柴松与油松针叶和木材解剖结构的差异李龙解庆李周岐刘志红(西北农林科技大学，杨凌，712100)摘要对柴松、油松的针叶(徒手切片法)和木材(木材切片法)解剖结构比较研究发现：柴松针叶的厚度、宽度均小于油松。柴松和油松针叶的单个纵生树脂道平均面积分别为l394．40、l651．8l，单个针叶横截面的平均树脂道分别为4．87个和6．70个。柴松的早材宽度

2、、晚材宽度均小于油松，早晚材宽度比柴松为1．97。油松为1．94。柴松和油松的早材管胞壁腔比分别为O．188、0．193，晚材管胞壁腔比分别为0．478和0．475柴松和油松木材纵生树脂道的单个平均面积分别为3620．69、5l】3．65m，横生树脂道平均面积分别为2727．62、3571．74Ixm。两者的针叶和木材解剖结构只是在各组织的大小、面积、密度等指标上存在一定差异，在解剖结构的组成上两种松之间并无明显区别关键词柴松：油松；针叶：木材；比较解剖分类号Q944．53AnatomyofPinus

3、tabulaeformisf．shekanensisandPinustabulaeformisinNeedleandWood／LiLong．XieQing．LiZhouqi，LiuZhihong(NorthwestA＆FUniversity，Yangling712100，P．R．China)／／JoumalofNortheastForestryUni—versity．-2013．4l(12)．-60—63AnatomicstructuresofneedlesofPinustabulaefi~rmist

4、．ShekanemisandP．tabulaqformiswerestudiedbyfree—handsectionmethodandtheirwoodstructureswerestudiedbyxylotomy．ThethicknessandwidthofneedlesofP．tabulaeformisf．ShekanensisaremuchshorterthanthatofP．tabulaqformis．Theaverageofresincanalareaandquantityofneedles

5、ofP．tabulaeformisf．Shekanensisarel394．40Ixmand4．87．respectively，andl651．81mand6．70forP．tabulaefor—mis．respectively．Thewidthvaluesofearlywoodand1atewoodofP．tabulaeformisShekanensisarewiderthanthatofP．tabulaeformis．Theaverageofthewidthofearlywoodtolatewoo

6、dratioforP．tabulaeformisf．Shekanensisis1．97．and1．94forP．tabulaeformis．TheaverageoftracheidwallstolumenratioofearlywoodofPtabulaeformisf．Shekanen—sisandP．tabulaeformisare0．188and0．193，respectively，andtheaverageoftracheids’wallstolumenratioofthelatewoodof

7、P．tabulaeformisf．ShekanensisandP．tabulaeformisare0．550and0，617．respectively．TheaverageareaoflengthwaysresinductsandamphitropousresinductsofP．tabulaeformisf．Shekanensisare3620．69umand2727．62Ixm，respectively，5113．65Ixmand3571．54mforP．tabulaeformis，respect

8、ively．ThereissignificantdifferenceintheanatomicalcharactersoftissuesfromP．tabulaeformis￡．ShekanensisandP．tabulaeformissuchassize．areaandden—sity．butthereisnosignificantdiferenceincompositionofanatomystructuresbetweentwokindsofpin