以茶子属（Ｒｉｂｅｓ）的杂种植株为试材，对其核型和显带技术作了详细的研究。结果表明，染色体的风油精制备法比去壁低渗法和常规压片法能得分散良好、结构分明的核型图，并且未经Ｇ带处理也能够显示出Ｇ带，说明该方法可成为一种新的预处理药物应用于植物，特别像果树这类染色体数目多、体积小的染色体标本制备或Ｇ带的诱导。关键词 Taking the hybrid plants of Ribes as test material, the karyotype and banding technology were studied in detail. The results showed that the method for preparing the essential oil by chromosomes was better than the wall-less hypotonic method and the conventional tabletting method with a well-dispersed and well-defined karyotype map, and the G band could be displayed without the G-band treatment, indicating that the method can Become a new pretreatment drug applied to plants, especially like fruit trees such as the number of chromosomes, small chromosomal specimen preparation or G band induction. Key words