| 低盐浸种对高盐胁迫下华山松幼苗生长的影响 |
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| 引用本文： | 王瑞苓,刘建祥,汪元超,胡勇,汪梦婷.低盐浸种对高盐胁迫下华山松幼苗生长的影响[J].河南农业科学,2013,42(1):94-97. |
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| 作者姓名： | 王瑞苓 刘建祥 汪元超 胡勇 汪梦婷 |
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| 作者单位： | 西南林业大学,云南昆明,650224 |
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| 基金项目： | 西南林业大学西南山地森林资源保育与利用省部共建教育部重点实验室资助项目(KLESWFU-201203) |
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| 摘 要： | 为了提高华山松幼苗对高盐胁迫的适应性,利用0～200mmol/L的NaCl溶液对华山松种子浸种处理,研究其在高盐胁迫下(300mmol/L NaCl)的生长情况。结果表明,与清水浸种(对照)相比,200mmol/L NaCl浸种处理的种子发芽率增加16.34个百分点,发芽势增加7.67个百分点,幼苗茎长(苗高)增加34.85%,鲜质量增加7.01%,干质量增加20.79%,可溶性糖含量增加56.31%,SOD活性和MDA含量分别下降了68.84%和40.69%。表明200mmol/L NaCl浸种抗盐锻炼效果最好。
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| 关 键 词： | 低盐浸种 高盐胁迫 华山松 幼苗 抗盐锻炼 |
Effect of High NaCl Stress on Seedlings Growth of Pinusarmandii Franch.after Low-NaCl Seed Soaking |
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| WANG Rui-ling
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LIU Jian-xiang
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WANG Yuan-chao
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HU Yong
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WANG Meng-ting.Effect of High NaCl Stress on Seedlings Growth of Pinusarmandii Franch.after Low-NaCl Seed Soaking[J].Journal of Henan Agricultural Sciences,2013,42(1):94-97. |
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| Authors: | WANG Rui-ling LIU Jian-xiang WANG Yuan-chao HU Yong WANG Meng-ting |
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| Institution: | (Southwest Forestry University,Kunming 650224,China) |
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| Abstract: | The effect of high NaCl stress(300 mmol/L)on seedlings growth of Pinusarmandii Franch.after seed soaking with low-NaCl concentration(0-200 mmol/L) was studied.After seed soaking with 200 mmol/L NaCl,the seed got the best salt resistance.In comparison with the control(soaking with water),the germination rate and germination energy increased 16.34 percentage points and 7.67 percentage points,respectively.Under this condition,the height of seedlings increased 34.85%,wet weight and dry weight increased 7.01% and 20.79%,soluble sugar increased 56.31%,SOD activity and MDA contents decreased 68.84% and 40.69%,respectively. |
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| Keywords: | low-NaCl seed soaking high NaCl stress Pinusarmandii Franch seedlings salt resistance exercise |
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