| 钾对盐胁迫下甘蔗苗期生长的影响 |
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| 引用本文： | 陈华文,陈迪文,黄莹,江永.钾对盐胁迫下甘蔗苗期生长的影响[J].甘蔗糖业,2014(3):20-23. |
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| 作者姓名： | 陈华文 陈迪文 黄莹 江永 |
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| 作者单位： | 广东省遂溪县农业局;广州甘蔗糖业研究所广东省甘蔗改良与生物炼制重点实验室; |
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| 基金项目： | 湛江蔗糖产业关键技术研发与产业化(项目编号:2012A090300015) |
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| 摘 要： | 本文利用水培方法研究了甘蔗品种ROC22在0.5%NaCl盐胁迫下，供给不同浓度钾（0、0.5、3、6 mmol/L）对其苗期生长的影响。结果表明，在盐胁迫下供钾能促进甘蔗生长，增加甘蔗生物量、根长、株高和根冠比，提高蔗叶的保水力和SPAD值，提高钾-钠比，增强甘蔗耐盐性。
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| 关 键 词： | 甘蔗 钾 盐胁迫 钠 耐盐性 |
Effect of Potassium on the Growth of Sugarcane Seedlings under Salt Stress |
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| CHEN Hua-wen,CHEN Di-wen,HUANG Ying,JIANG Yong.Effect of Potassium on the Growth of Sugarcane Seedlings under Salt Stress[J].Sugarcane and Canesugar,2014(3):20-23. |
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| Authors: | CHEN Hua-wen CHEN Di-wen HUANG Ying JIANG Yong |
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| Affiliation: | 1.Shuixi Agriculture Bureau in Guangdong Province, Guangdong 524300; 2.Guangzhou Sugarcane Industry Research Institute/Guangdong Key Lab of Sugarcane Improvement ＆ Biorefinery, Guangzhou 510316) |
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| Abstract: | The paper deals with the effect of different concentrations of potassium supply （0, 0.5, 3, 6 mmol/L） on sugarcane seedlings growth under 0.5% NaCl salt stress. Sugarcane seedlings of ROC22 were cultured in water. The result showed that potassium supply improved the sugarcane growth under salt stress, and the biomass, root length, plant height and root-cap ratio of sugarcane increased significantly. Potassium improved the water retention of sugarcane leaves, increased SPAD value of leaf, increased the potassium-sodium ratio, and improved sugarcane salt resistance. |
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| Keywords: | Sugarcane Potassium Salt stress Sodium Salt tolerance |
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