伐根嫁接毛白杨木材的解剖特性
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摘要
以萌生毛白杨为对照,研究伐根嫁接毛白杨的木材解剖特性及其径向和轴向的变异规律。结果表明:培育方式对毛白杨微观特性的径向变异和轴向变异有不同程度的影响。伐根嫁接的纤维和导管的长度、宽度略高,微纤丝角和壁腔比略低,组织比量差异不大。纤维长宽和导管长宽的径向变异从髓心向外迅速增加,而后趋于平缓;微纤丝角和壁腔比随着树龄的增大先减小后呈波动性变化,组织比量整体变化趋势不大。轴向变异规律:纤维长度和宽度随着树高的增加而减小,导管分子先增加后减小,壁腔比呈递增趋势,微纤丝角先减小后增加,但是整体变化幅度较小。组织比量围绕一个数值波动,整体变化较小。通过方差检验,两种培育方法毛白杨的纤维宽度和微纤丝角径向变异规律差异显著(P<0.05)。不同高度的伐根嫁接和萌蘖繁殖毛白杨之间的纤维长度和导管长度差异显著(P<0.05)。
A comprehensive analysis on the anatomical properties and their variation patterns between stump grafting Populus tomentosa and sprouting reproduction Populus tomentosa were conducted. The cultivation methods exited different effects about radial variation and axial variation in anatomical properties of Populus tomentosa. Compared with sprouting reproduction Populus tomentosa,stump grafting trees owned higher fiber length and width,higher vessel length and width,lower microfibrillar angle and wall to lumen ratio,and there were fewer differences within tissue proportion. There were an initially rapid and then gentle increase of fiber length and width,vessel length and width from heart- centre to outward,at last tended to stable. While microfibrillar angle and wall to lumen ratio gradually decreased and then changes in volatility. Tissue proportion exited some changes. The axial variation showed a decrease of fiber length and width with tree height increasing,while wall to lumen ratio increased. Vessel length and width increased and then decreased. Microfibrillar angle decreased first and then increased but changed generally little. Tissue proportion was based on a numerical wave. The variance verification showed there were significant differences in the radial variation of fiber width and microfibrillar angle. There were also significant differences in fiber length and vessel length with different tree height.
A comprehensive analysis on the anatomical properties and their variation patterns between stump grafting Populus tomentosa and sprouting reproduction Populus tomentosa were conducted. The cultivation methods exited different effects about radial variation and axial variation in anatomical properties of Populus tomentosa. Compared with sprouting reproduction Populus tomentosa,stump grafting trees owned higher fiber length and width,higher vessel length and width,lower microfibrillar angle and wall to lumen ratio,and there were fewer differences within tissue proportion. There were an initially rapid and then gentle increase of fiber length and width,vessel length and width from heart- centre to outward,at last tended to stable. While microfibrillar angle and wall to lumen ratio gradually decreased and then changes in volatility. Tissue proportion exited some changes. The axial variation showed a decrease of fiber length and width with tree height increasing,while wall to lumen ratio increased. Vessel length and width increased and then decreased. Microfibrillar angle decreased first and then increased but changed generally little. Tissue proportion was based on a numerical wave. The variance verification showed there were significant differences in the radial variation of fiber width and microfibrillar angle. There were also significant differences in fiber length and vessel length with different tree height.
引文
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[13]刘亚梅,刘盛全.人工授力欧美杨107杨不同倾斜角度苗木的微纤丝角、基本密度和轴向干缩率[J].林业科学,2011,47(8):115-120.
[14]黄烈健,苏晓华,张香华,等.与杨树木材密度、纤维性状相关的SSR分子标记[J].遗传学报,2004,31(3):299-304.
[15]汪佑宏,李杰,刘杏娥,等.淹水程度对长江滩地枫杨导管及微纤丝角的影响[J].安徽农业大学学报,2004,31(2):164-168.
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[17]任海青,刘杏娥,江泽慧,等.栽植密度对小黑杨人工林木材解剖特性的影响[J].林业科学研究,2006,19(3):364-369.
[18]周亮,刘盛全,田根林,等.欧美杨107杨木材解剖特性的径向变异[J].东北林业大学学报,2010,38(10):1-4.
[2]李丕全.伐桩嫁接技术在杨树丰产林更新改造中的应用研究[J].内蒙古林业科技,2008,34(4):13-15.
[3]白勇龙,徐建民,孙建平,等.三倍体毛白杨引种繁育试验研究[J].甘肃林业科技,2011,36(3):17-20.
[4]王伟,李晓阳,曹雪松.杨树嫁接造林实现快速成林[J].水土保持应用技术,2008(1):44-45.
[5]林祁,邬志荣,钟学敏,等.东亚八角科比较木材解剖[J].林业科学,2010,46(1):91-100,插1-插2.
[6]Shahpoori Z,Bayramzadeh V,Safdari V R,et al.Wood anatomical changes due to uptake of Cadmium and Lead from contaminated soils in Acer velutinum seedlings[J].Journal of Forestry Research,2012,23(3):473-479.
[7]张冬梅,张志毅,黄荣凤.毛白杨无性系纤维特性及微纤丝角的遗传分析[J].林业科学,2007,43(4):129-133.
[8]张平冬,姚胜,康向阳,等.三倍体毛白杨超短轮伐纸浆林产量及其纤维形态分析[J].林业科学,2011,47(8):121-126.
[9]吴峰,张平冬,康向阳,等.北京地区栽培的三倍体毛白杨纤维性状遗传变异[J].东北林业大学学报,2011,39(6):4-7.
[10]姜笑梅,殷亚方,浦上弘幸.北京地区I-214杨树木材解剖特性与基本密度的株内变异及其预测模型[J].林业科学,2003,39(6):115-121.
[11]辜云杰,罗建勋,曹小军,等.中华南方常绿杨木材纤维形态特征及径向变异规律[J].东北林业大学学报,2007,35(4):31-33.
[12]朱心军,张冬梅,安景文.优良纸浆材毛白杨无性系的选择[J].山东林业科技,2008,38(6):4-7.
[13]刘亚梅,刘盛全.人工授力欧美杨107杨不同倾斜角度苗木的微纤丝角、基本密度和轴向干缩率[J].林业科学,2011,47(8):115-120.
[14]黄烈健,苏晓华,张香华,等.与杨树木材密度、纤维性状相关的SSR分子标记[J].遗传学报,2004,31(3):299-304.
[15]汪佑宏,李杰,刘杏娥,等.淹水程度对长江滩地枫杨导管及微纤丝角的影响[J].安徽农业大学学报,2004,31(2):164-168.
[16]唐秋,蒲俊文.几种速生阔叶材纤维形态的研究[J].中华纸业,2006,27(5):71-73.
[17]任海青,刘杏娥,江泽慧,等.栽植密度对小黑杨人工林木材解剖特性的影响[J].林业科学研究,2006,19(3):364-369.
[18]周亮,刘盛全,田根林,等.欧美杨107杨木材解剖特性的径向变异[J].东北林业大学学报,2010,38(10):1-4.