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时间:2020-06-05
《柴松与油松针叶和木材解剖结构的差异.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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