RAPD analysis of 30 American hickory varieties introduced from America was carried out with leaf as material, using improved CTAB method and 16 Operpon.

• 以叶片为材料,采用改良CTAB法和16种Operon引物对从原产地美国引进的30个美国山核桃主要栽培品种进行RAPD分子分析。