An improved CTAB method of DNA extraction is applied to obtaining genomic DNA from silica gel dried leaves of Dendrocalamus sinicus Chia et J. L. Su. The DNA is successfully used for RAPD analysis.

• 用改良CTAB法从巨龙竹硅胶干燥的叶片中提取基因组DNA,成功地进行RAPD扩增。