Genetic Variation on Tracheid Microfibril Angle of Chinese Fir Clones
杉木无性系微纤丝角遗传变异的研究
The microfibril angle of earlywood tracheid bigger than that of latewood.
早材管胞微纤丝角明显大于晚材。
Annular thickening Rings of thickening laid down on the inner wall of protoxylem vessels and tracheids.
原生木质部导管和管胞的内层环状増厚。
The tracheid diameter and the thickness of cell wall increase from pith to bark.
管胞直径，胞壁厚度自髓心向外增加。
Analysis of difference between fibril angles of radial and tangential walls of coniferous wood tracheids.
针叶材管胞径壁与弦壁纤丝角的差异分析
Tracheid An elongated xylem conducting element with oblique end walls.
管胞具有倾斜端壁的延伸的木质部运输分子。
Ultrasonic emission is a phenomenon with cavitation of vessels or tracheids.
植物得超声发射是导管或管胞里空穴化时得伴随现象。
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。
The xylem of ferns and conifers contains only tracheids.
蕨类植物和针叶树的木质部仅含有管胞。
The number of tracheids in vascular tissues of the root varies considerably among different species of Isoetes.
水韭不同种根内中央维管束的管胞数目存在差异。
The xylem of ferns only contains tracheids.
蕨类植物得木质部只含有管胞。
The relation of tracheid and the density of wood were direct proportion.
管胞长度与木材密度的相关关系为正相关。
Variation of Wood Basic Density and Tracheid Length of Different Provenances of Loblolly and Slash Pines
不同种源火炬松和湿地松木材基本密度和管胞长度的变异
Vessel and fibre tracheid are both spiral thickening distinctly.
导管与纤维管胞均具明显的螺纹加厚。
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的影响。
It is usually found in metaxylem tracheids and vessels.
经常在木质部管胞和导管中发现。
It is found in protoxylem and first metaxylem tracheids and vessels.
可在原生木质部和初始后生木质部的管胞和导管中见到。
VARIATION OF TRACHEID LENGTH AND VARIATION OF TRACHEID LENGTH AND OF SLASH PINE GROWN IN DIFFERENT SITES
湿地松木材管胞长度微纤丝角的变异及其相关性分析
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