染色体是遗传物质的载体,通过研究植物的染色体,可以了解物种间的亲缘关系和解释诸多的遗传现象,因此它是分类学和遗传育种学不可缺少的一项基础工作,我们在进行竹子有性杂交的过程中,为了鉴定杂种,有必要了解杂种和亲本染色体的情况,为此进行了丛生竹染色体数的研究。竹类染色体数的研究国外已有不少报导,前人的研究一致认为:热带丛生竹染色体数为72,暖温带散生竹的染色体数为48,竹类植物是以染色体基数为12的六倍体或者四倍体。近年来作者观察了我国华南地区分布的30余种丛生竹的体细胞,发现竹类植物的染 Chromosomes are carriers of genetic material. By studying the chromosomes of plants, we can understand the genetic relationship among species and explain many genetic phenomena. Therefore, it is an indispensable basic work in taxonomy and genetic breeding. In the process of hybridization, in order to identify hybrids, it is necessary to understand the hybrid and parental chromosomes. Bamboo chromosome number has been reported in many foreign countries, previous studies agreed that: the number of tropical cluster bamboo chromosome 72, warm temperate scattered bamboo chromosome number 48, bamboo plant chromosome base 12 Ploidy or tetraploid. In recent years, the author observed the somatic cells of more than 30 species of clumpy bamboo distributed in southern China and found that the dyeing of bamboo plants