吉林林业科技
吉林林業科技
길림임업과기
JILIN FORESTRY SCICNCE AND TECHNOLOGY
2014年
1期
40-44
,共5页
赵西平%秦丽丽%杨利梅%王大帅%郑权%张磊
趙西平%秦麗麗%楊利梅%王大帥%鄭權%張磊
조서평%진려려%양리매%왕대수%정권%장뢰
兴安落叶松%次生木质部%管胞%木射线%具缘纹孔%树脂道
興安落葉鬆%次生木質部%管胞%木射線%具緣紋孔%樹脂道
흥안락협송%차생목질부%관포%목사선%구연문공%수지도
Larix gmeini%secondary xylem%tracheid%wood ray%bordered pit%resin canal
运用木材解剖图像分析系统和显微照相的方法对人工兴安落叶松次生木质部的解剖结构进行研究,结果表明:落叶松具正常树脂道和受伤树脂道两种类型,前者常见于晚材。落叶松生长轮内的早晚材在干和枝内急变,在根内缓变。早材管胞呈六边形至多边形,胞壁常见单列具缘纹孔,偶见对列具缘纹孔;晚材管胞多呈矩形,胞壁鲜见具缘纹孔,通常为单列具缘纹孔。落叶松木射线同时具有单列木射线和纺锤形木射线两种类型,纺锤形木射线中仅含一枚纵行树脂道。纵行管胞与木射线交叉形成的纹孔场为云杉型。从根到干再到枝,管胞逐渐细化,管胞长度逐渐减小,木射线分布由密到疏。
運用木材解剖圖像分析繫統和顯微照相的方法對人工興安落葉鬆次生木質部的解剖結構進行研究,結果錶明:落葉鬆具正常樹脂道和受傷樹脂道兩種類型,前者常見于晚材。落葉鬆生長輪內的早晚材在榦和枝內急變,在根內緩變。早材管胞呈六邊形至多邊形,胞壁常見單列具緣紋孔,偶見對列具緣紋孔;晚材管胞多呈矩形,胞壁鮮見具緣紋孔,通常為單列具緣紋孔。落葉鬆木射線同時具有單列木射線和紡錘形木射線兩種類型,紡錘形木射線中僅含一枚縱行樹脂道。縱行管胞與木射線交扠形成的紋孔場為雲杉型。從根到榦再到枝,管胞逐漸細化,管胞長度逐漸減小,木射線分佈由密到疏。
운용목재해부도상분석계통화현미조상적방법대인공흥안락협송차생목질부적해부결구진행연구,결과표명:락협송구정상수지도화수상수지도량충류형,전자상견우만재。락협송생장륜내적조만재재간화지내급변,재근내완변。조재관포정륙변형지다변형,포벽상견단렬구연문공,우견대렬구연문공;만재관포다정구형,포벽선견구연문공,통상위단렬구연문공。락협송목사선동시구유단렬목사선화방추형목사선량충류형,방추형목사선중부함일매종행수지도。종행관포여목사선교차형성적문공장위운삼형。종근도간재도지,관포축점세화,관포장도축점감소,목사선분포유밀도소。
With wood anatomy image analysis system and micrography , anatomical structure of secondary xylem was ob-served and measured in artificial Larix gmeini.The results showed that Larix gmeini contained normal and injured resin ca-nal.The normal resin canal was commonly in latewood .From the earlywood to the latewood , the change was sharp in stem or branch, but was mild in the root .The shape of earlywood tracheid was hexagon or polygon .The single bordered pit was common in cell wall of earlywood tracheid , while the double bordered pit was unusual in them .The shape of Latewood tra-cheid was rectangular .The bordered pits were found seldom in the cell walls of latewood tracheid .It must be single bor-dered pit if the pits are found .There were single wood ray and spindle wood ray in Larix gmeini.Spindle wood rays only contained one longitudinal resin canal .The pit field formed by longitudinal tracheids and xylem rays is spruce type .From the root to the stem and branch , the size of tracheid was progressive elaboration , the length of xylem decreased , and distri-bution of rays were by the close to the sparse .