| 盐胁迫对野生大丁草种子萌发的影响 |
| |
| 引用本文： | 姜云天,;顾地周,;周繇,;李玉梅. 盐胁迫对野生大丁草种子萌发的影响[J]. 中国园艺文摘, 2014, 0(8): 25-27 |
| |
| 作者姓名： | 姜云天, 顾地周, 周繇, 李玉梅 |
| |
| 作者单位： | [1]通化师范学院生物系,吉林通化134002; [2]吉林师范大学生态环境研究所,吉林四平136000 |
| |
| 基金项目： | 项目来源：通化师范学院自然科学基金资助项目（201216）;吉林省教育厅项目（吉教科合字[2012]第361号）. |
| |
| 摘 要： | 以野生大丁草种子为试材,研究碱性盐NaHCO3对大丁草种子萌发特性的影响。结果表明:低浓度的NaHCO3(≤20 mmol/L)促进种子萌发,而高浓度的NaHCO3(20 mmol/L)对大丁草种子的萌发有明显的抑制作用;种子发芽率、发芽势、相对发芽率与盐浓度之间呈显著的负相关(P0.05);大丁草种子萌发期耐盐适宜浓度为28.4 mmol/L,耐盐半致死浓度为42.66 mmol/L,耐盐极限浓度为65.34 mmol/L。
|
| 关 键 词： | 大丁草 NaHCO胁迫 种子萌发 |
Effect of Salt Stress on Seed Germination of Leibnitzia anandria L |
| |
| Affiliation: | JIANG Yun-tian, GU Di-zhou, ZHOU You, LI Yu-mei |
| |
| Abstract: | The effect of NaHCO3 stress in different concentration on Leibnitzia anandria seed germination was studied in this paper. The results showed that low concentrations（≤20 mmol/L） of NaHCO3 could promote seed germination, and the concentrations above 20 mmol/L had an obvious inhibition effect on Leibnitzia anandria seed germination. Significant negative correlations existed between germination rate, germination potential and relative germination rate with the concentration of NaHCO3. The ift salt concentration for Leibnitzia anandria seed germination was 28.49 mmol/L, and the half-lethal concentration and fatal concentration were 42.66 mmol/L and 65.34 mmol/L respectively. |
| |
| Keywords: | Leibnitzia anandria NaHCO3 stress Germination |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
