反交的烟单14号和中单2号都是以莫17亲本作母本,所以配制出来的杂交种子从子粒颜色、形状上极难鉴别。我们在室内纯度检验中,采用快速发芽及种苗鉴别,时间只需8天。具体作法是:取两品种试样各50粒,用砂床在恒温箱发芽,要求种胚向上,种子均匀整齐地按入砂中,湿度以手压砂面不出水膜为宜。5天后,种芽 Anti-cross on the 14th and the single on the 2nd single are Mo 17 parents as the mother, so the preparation of the hybrid seeds from the child color, the shape is extremely difficult to identify. In our indoor purity test, the rapid germination and seedling identification, time just 8 days. Specific practices are: take two varieties of 50 samples, with a sand bed in the incubator germination, embryos are required upward, evenly pressed into the sand seeds in the sand, hand pressure sand surface water film is appropriate. After 5 days, plant the bud