关键词: 污染, 污染

Abstract: In order to understand the salt tolerance characteristics of wild vegetable Allium galanthum L. seeds during the germination process, the seed of wild Allium galanthum L. was used as test material, made NaCl, Na₂CO₃, Na₂SO₄ and the mixture into five different concentration gradients, to determinate the seed germination of Allium galanthum in all treatments. The results showed that different types of salt at the same concentration on seed germination had different inhibition rate. When NaCl concentration was 50 mmol/L, the germination rate was 25.3%, Na₂CO₃ was 15.33%, Na₂SO₄ was 14%; the mixed salt solution had significant impact on seed germination, but not obvious, most seeds were inhibited. The results indicated that the single low concentrations of salt and mixture salt had little effect on the seed germination, and Allium galanthum L. had some salt tolerance, it could germinate in lower concentrations of salt solution. But with salt concentration increased, NaCl, Na₂CO₃, Na₂SO₄ and the mixture inhibit the seed germination. In these single-salt solutions, the tolerance ability was NaCl＞Na₂CO₃＞Na₂SO₄, the mixture had higher inhibition than the single-salt solution.