Genetic variations on tracheid microfibril Angle of 55 Chinese fir clones were investigated.对55个杉木无性系管胞微纤丝角的遗传变异进行了研究。
Tensile strength is mainly controlled by tracheid length, tracheid strength, microfibril angle and crystalline degree etc.顺纹抗拉强度主要受管胞长度、管胞强度、纤丝角度、结晶度等因子的控制。
The distribution of microfibril spiral angle and relative orientational index of cellulose crystallites in cotton fibre cell walls had been studied by X-ray diffraction analysis.用
x射线衍射法对棉纤维细胞壁的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布规律进行了研究。