一、前言毛竹(Phyllostachys pubescens Mazel H.deLehaie)是一种单子叶多年生的木本植物。它的木质部不象裸子植物或双子叶植物、具有年轮可以查定年龄,而正确地查定毛竹年龄,对毛竹的栽培管理、采伐利用、科学研究等都有重大意义,所以早在1957年以前已引起我们的注意,并在工作中经常收集一些这方面的资料。为了进一步探明这 I. Foreword Phyllostachys pubescens Mazel H. de Lehaie is a monocot perennial woody plant. Its xylem is not like gymnosperms or dicotyledonous plants, with annual rings can determine the age, and correctly identify the age of bamboo, bamboo cultivation and management, harvesting, scientific research are all of great significance, so as early as 1957 It has drawn our attention before and often collects some of this information in our work. To further prove it