• Vessel and fibre - tracheid are both spiral thickening distinctly.

    导管纤维管均具明显的螺纹加厚

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  • The tracheid diameter and the thickness of cell wall increase from pith to bark.

    直径厚度自髓心向外增加

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  • Genetic variations on tracheid microfibril Angle of 55 Chinese fir clones were investigated.

    55个杉木无性系管胞微纤丝遗传变异进行了研究。

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  • There were very small effect of seed source and no definite geographic pattern in tracheid length.

    长度源区产地效应很小一定地理变异趋势

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  • Tylose a bladder like ingrowth from a parenchyma cell into an adjacent tracheid or vessel through a paired pit.

    薄壁细胞向内生长的泡状物通过孔伸相邻的管胞导管形成的结构。

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  • As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.

    造林密度,则生长变窄,管数减少增加

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  • The effect of intermittent flood upon the radial variation of tracheid features of Taxodium ascendens was investigated.

    研究间歇性淹水对池杉木材管胞形态变异影响

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  • The results showed that there were distinct differences in micro-fibril Angle, width of growth-ring and tracheid diameter.

    结果表明管胞直径及生长轮宽度等指标表现为差异显著

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  • Tensile strength is mainly controlled by tracheid length, tracheid strength, microfibril angle and crystalline degree etc.

    抗拉强度主要长度、管胞强度、角度结晶度因子的控制。

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  • No significant difference was also found among tree types with different growth rate for specific gravity and tracheid length.

    不同生长速率样木该二性状差异很小。

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  • The results show that the average value of tracheid form can not be affected by the planting density through variance analysis .

    结果表明造林密度马尾松管胞形态平均值影响不大,方差分析显著;

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  • The optimum selection age of basic density was determined at 10 years, the juvenile-mature correlation in tracheid length was unstable.

    所以,10确定基本密度最佳选择年龄。管长度幼——熟龄相关不稳定

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  • The tracheid form and radial variance were studied for 15 years Masson pine plantations with five different planting densities in Longli, Guizhou.

    采集贵州省龙里林场马尾松密度试验林15生马尾松木材,5造林密度,研究造林密度对马尾松形态及其径向变异的影响。

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  • There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma, the axial tracheid and the ray tracheid.

    向管之间、轴向管射线薄壁细胞之间、轴向管胞与射线管胞之间,均不同类型纹孔对。

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  • There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma , the axial tracheid and the ray tracheid.

    向管之间、轴向管射线薄壁细胞之间、轴向管胞与射线管胞之间,均不同类型纹孔对。

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  • The tracheid and sieve tube elements are all differentiated from the procambia in the center of the haustoria, and the former occurs prior to the latter.

    吸器中是从吸器中央具有形成层特性细胞分化的,管胞分化先于筛管,或同时进行。

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  • The broken - line graph of average values of families show evident differences in wood basic specific gravity and tracheid length between different regions.

    均值折线显示不同地区木材基本密度、管长度层次明显

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  • Among the climatic factors which affect the geographic variation of tracheid morphological, moisture and rainfall are the principal factors, secondary is temperature.

    影响管胞形态地理变异气候因子,水湿条件主导因素其次温度

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  • The results showed: from pith outward, the tracheid length and diameter and cell wall thickness of Taxodium ascendens wood with or without intermittent flood all increased.

    结果表明间歇性淹水对池杉木材形态的径向变异规律影响,即不论有无间歇性淹水,池杉木材管长度直径,皆是自心向增加趋势

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  • The results indicated that the five traits like height, diameter at breast height, volume, wood basic density and tracheid length showed at least significant genetic variation among clones.

    结果表明,无性系胸径、材积、木材基本密度长度存在显著至极显著差异。

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  • The results indicated that the five traits like height, diameter at breast height, volume, wood basic density and tracheid length showed at least significant genetic variation among clones.

    结果表明,无性系胸径、材积、木材基本密度长度存在显著至极显著差异。

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