关键词: 全日制, 全日制, 专业学位研究生, 远洋渔业方向, 实践和思考

Abstract: To select salt-tolerant foxtail millet varieties, the seeds and seedlings of 27 common varieties from Shanxi, Shaanxi, Hebei were treated. The germination rates in different salt concentrations were investigated, and the relative salt damage rates were measured. The salt damage index at seedling stage was measured according to the identification method of salt tolerance at seedling stage of“Millet Germplasm Resources Description Standard and Data Standard”. The results showed that under 0 mmol/L and 150 mmol/L salt stress, there was little difference in the germination period of different varieties. However, under 200 mmol/L salt stress, the difference was obvious. At 200 mmol/L salt solution,‘Zhang zagu No.3’reached the salt tolerance standard of grade 3, and‘Zhang zagu DH3’reached the salt tolerance standard of grade 5. The results of salt tolerance identification at seedling stage showed that‘Zhang zagu No.3’reached the salt tolerance standard of grade 3, and‘Zhang zagu DH3’reached the salt tolerance standard of grade 7. The results of seedling emergence and growth showed that with the increase of the salt concentration, the seedling rate decreased gradually, and the growth height of seedlings also decreased gradually. For the individual with non- salttolerant parents, the salt tolerance could be significantly enhanced by hybridization. The results indicate that the salinity concentration of soil more than 0.3%, is not suitable for the normal growth of foxtail millet, and the mild saline-alkali land with a salt concentration of less than 0.3% is the key area for breeding salt-tolerant millet varieties.