盐、碱胁迫下水稻种子萌发过程水分含量变化及对种子发芽影响的低场核磁检测研究

杨洪伟, 张丽颖, 李晓辉

Research on the Moisture Content Variation and Influence to Rice Seed Germination under Salt and Alkali Stress by Low Field NMR

Yang Hongwei, Zhang Liying, Li Xiaohui

表1 NaCl和NaHCO3胁迫处理下水稻种子发芽指标对比

Table 1 Comparison of germination indexes of rice seed under NaCl and NaHCO3 stress

水稻品种 Rice variety 处理 Treatment 溶液浓度 Solution concentration (mmol/L) 平均发芽时间 Mean germination time (d) 发芽指数 Germination index 发芽势 Germination potential (%) 发芽率 Germination percentage (%) 盐粳48 YJ48 对照 0 2.05±0.05cC 24.67±0.29aA 97.33±2.31aA 100.00±0.00aA NaCl胁迫 50 2.82±0.03bB 18.41±0.11bB 97.33±2.31aA 100.00±0.00aA 150 3.05±0.05aAB 16.22±0.49cC 86.00±2.00bB 98.67±1.15aA NaHCO3胁迫 50 2.99±0.08abAB 16.02±0.40cC 95.83±3.82aA 97.50±3.00abA 150 3.19±0.19aA 14.28±0.40dD 88.33±1.44bB 94.17±4.00bA 辽星1 LX1 对照 0 2.50±0.04cC 20.89±0.18aA 90.48±2.36aA 98.00±0.00aA NaCl胁迫 50 3.05±0.04bB 16.37±0.37bB 92.56±1.26aA 98.00±2.00aA 150 4.41±0.10aA 10.03±0.28dD 88.26±1.37cC 93.33±4.16bB NaHCO3胁迫 50 3.38±0.05bB 14.28±0.21cC 92.50.±2.50aA 96.67±1.00aA 150 4.53±0.07aA 9.82±0.17dD 38.33.±1.44bB 88.33±1.00cC