The results show, the seedling of the Larix chinensis is the best material for extracting and studying DNA and the callus could be used to extract DNA and the coniferous is poorer.

• 结果表明，提取太白红杉DNA并对其进行研究，幼苗是较佳材料，愈伤组织也是较好的可试材料，而针叶则相对较差。