采脂用马尾松径向管胞形态特征的研究

Radical tracheid characteristics of Pinus massoniana for resin tapping

为提高采脂材利用效率,对采脂后的马尾松材管胞形态特征进行研究。结果表明,马尾松管胞长度平均值为3.12 mm;早、晚材管胞直径分别为37.79μm和37.28μm;早、晚材管胞腔径分别为29.78μm和21.77μm,晚材比早材管胞腔径下降了26.89%;早、晚材柔性系数分别为0.7826和0.5685,晚材柔性系数比早材下降了27.36%;早、晚材双壁厚分别为8.01μm和15.51μm,晚材比早材双壁厚增大了93.60%。采脂用马尾松可作为优良的造纸原料。

In order to promote the use efficiency for resin tapping wood, the tracheid morphology of Pinus massoniana Lamb. after being resinned has been studied. The results show that the tracheid average length is 3.12 mm, the tracheid diameters of the early and later wood are 37.79 μm and 37.28 μm, and the tracheid lumen diameters of the early and later are 29.78 μm and 21.77 μm,and the value of later wood decreases 26.89% than that of the early wood, the lumen to diameter of tracheid of early and later wood are 0. 7826 and 0. 5685, and the value of later wood decreases 27.36% than that of the early wood, the double cell wall thickness of the early and later are 8.01 μm and 15.51 μm respectively,and the value of later wood increases 93.60% than that of the early wood.