| 不同基因型玉米根系对铝胁迫反应的差异研究 |
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| 引用本文： | 李德华,贺立源,李建生,刘武定. 不同基因型玉米根系对铝胁迫反应的差异研究[J]. 华中农业大学学报, 2003, 22(4): 365-369 |
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| 作者姓名： | 李德华 贺立源 李建生 刘武定 |
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| 作者单位： | 1. 华中农业大学资源与环境学院,武汉,430070
2. 中国农业大学农学与生物技术学院,北京,100094 |
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| 基金项目： | 国家“八六三”计划 ( 2 0 0 1AA2 410 5 )资助项目 |
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| 摘 要： | 采用营养液培养方法，研究了对酸性土壤反应不同的玉米基因型根系对铝毒胁迫反应的差异。耐铝基因型具有苏木精着色程度较低、种子根相对伸长率和TTC相对还原强度以及根系相对生物量较高的共同特点。种子根相对伸长率、苏木精染色指数及根系TTC相对还原强度与植株的耐铝性具有显著的相关性。
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| 关 键 词： | 基因型 玉米 根系 铝胁迫 营养液培养 酸性土壤 着色程度 苏木精 还原强度 耐铝性 |
| 修稿时间： | 2003-02-13 |
The Response of Maize Roots with Different Genotypes to Al-stress |
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| Li Dehua He Liyuan Li Jiansheng Liu Wuding. The Response of Maize Roots with Different Genotypes to Al-stress[J]. Journal of Huazhong Agricultural University, 2003, 22(4): 365-369 |
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| Authors: | Li Dehua He Liyuan Li Jiansheng Liu Wuding |
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| Affiliation: | Li Dehua 1) He Liyuan 1) Li Jiansheng 2) Liu Wuding 1) |
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| Abstract: | The response of maize roots with different genotypes to Al-stress were studied by the means of nutritional cultivation. The results indicated that the Al-tolerant genotypes had lower hematoxylin dye, higher relative seminal root length (RSRL) and higher relative reducing ability of TTC than Al-sensitive genotypes. There was significant correlation between the (RSRL),hematoxylin dye index, relative reducing ability of TTC and the Al-tolerance of the plant in maize. |
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| Keywords: | maize Al-stress root response genotype |
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