枫香干枝在创伤、创伤乙烯利处理条件下树脂道的形成和分布

枫香树次生生长过程自然条件下不产生树脂道，只有受外界的机械损伤、化学作用等条件刺激才产生。其形成的部位为当年的次生木质部，树脂道是由最幼嫩的木质部部分细胞的分化形成。

Formation and Distribution of Resin Canals in Beautiful Sweetgum Stem(Liquidambar formosana) by Mechanical or Chemical Injury

Under normal conditions Liquidambar formosana Hance does not form resin canals automatically during its secondary growth, but did after inflicted by mechanical or 2-chloroethane phosphonic acid injury. The canals originated in the alburnum during the very year in the form of cavities by the malformation, disfunction and solubilization of the youngest cells of secondary xylem. Resin was synthesized by the active cells in the cambium zone including secondary xylem cells, cambium cells, secondary phloem cells and ray cells.