Abstract:

To reveal the influence of Lanthanum on the seed vigor of Weixian Radish, the effects of Lanthanum in different concentration and different treating time on vigor of Weixian radish’s old seeds were researched, and germination energy, germination rate, germination index, and vigor index was tested. The results showed that germination energy, germination rate, and germination index was increased significantly by soaking seeds in 0-10 mg/L LaCl3 for 12 h or 24 h. However, vigor index was increased significantly only by soaking seeds for 12 h. When soaking seeds in 0-10 mg/L LaCl3 for 36 h or 48 h, germination energy, germination rate, and germination index was decreased and vigor index was increased a little. However, the difference between the control and the treated was not significant. The Weixian radish old seeds were soaked in 2.5 mg/L LaCl3 for 12 h was optimal for improving seed vigor in practice.