对55个杉木无性系管胞微纤丝角的遗传变异进行了研究。
Genetic variations on tracheid microfibril Angle of 55 Chinese fir clones were investigated.
结果表明，管胞直径和微纤丝角及生长轮宽度等指标表现为差异显著。
The results showed that there were distinct differences in micro-fibril Angle, width of growth-ring and tracheid diameter.
结果表明，微纤丝角径向自内向外略有减小，纤维股面积比径向自内向外逐渐增大；
The result shows that:(1)Micro-fibril angle increases gradually from the center to the edge in radial direction, and the surface area percentage of its fiber band has the same variability;
广义遗传力变化为0.734~0.867，微纤丝角无性系间的差异受很强的遗传控制；
The broad sense heritability estimates of clones varied between 0.734 and (0.867), indicating the microfibril angle was under strong genetic control.
扫描电镜下可见细菌纤维素膜呈疏松的网状结构，纤维素微纤丝从菌体胞壁小孔中分泌出来；
The surface of BC membranes was porous network structure observed by SEM, and the micro-fibrils of BC were secreted from the eyelet of cell wall.
测量结果表明：在花后5～50天内，细胞壁S_2，层的平均微纤丝螺旋角随花后生长天数的增加而逐渐变小。
As an application result are given for Gossypium hirsutum L. Daizi-15. The result was: Between 5 and 50 days postanthesis mean microfibrillar spiral angle of S_2 secondary walls declined.
方差分析表明：63杨、69杨微纤丝角、基本密度、抗弯强度和干缩率差异显著，说明63杨和69杨受滩地类型影响较大。
It indicates that there are significant differences for microfibril Angle, basic density, bending strength and rate of shrinkage of poplar 63 and poplar 69 by variance analysis.
本文对纤维素合成、合成中所需要的酶以及纤维素沉积中微纤丝的作用等方面进行了综述和探讨， 并对纤维素合成的深入研究进行了展望。
The recent progresses in cellulose synthesis, the functions of relative enzymes and microfibril in process of cellulose synthesis were reviewed. The studies in cellulose synthesis were prospected.
本文对纤维素合成、合成中所需要的酶以及纤维素沉积中微纤丝的作用等方面进行了综述和探讨， 并对纤维素合成的深入研究进行了展望。
The recent progresses in cellulose synthesis, the functions of relative enzymes and microfibril in process of cellulose synthesis were reviewed. The studies in cellulose synthesis were prospected.
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