| 氮胁迫下不同效率玉米基因型的生理特性 |
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| 引用本文： | 孙世友,张国印,王丽英,耿暖,王凌. 氮胁迫下不同效率玉米基因型的生理特性[J]. 河北农业科学, 2006, 10(1): 26-28 |
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| 作者姓名： | 孙世友 张国印 王丽英 耿暖 王凌 |
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| 作者单位： | 河北省农林科学院农业资源环境研究所,河北,石家庄,050051;河北省农林科学院农业资源环境研究所,河北,石家庄,050051;河北省农林科学院农业资源环境研究所,河北,石家庄,050051;河北省农林科学院农业资源环境研究所,河北,石家庄,050051;河北省农林科学院农业资源环境研究所,河北,石家庄,050051 |
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| 基金项目： | 河北省自然科学基金 , 河北省农林科学院科研项目 |
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| 摘 要： | 在室内控制光照条件下,采用水培方法,对不同氮效率玉米基因型的根分泌物含量和叶片硝酸还原酶活性进行了比较研究.结果表明:氮胁迫条件下,不同氮效率玉米基因型根分泌物中可溶性总糖、氨基酸、酚类物质含量及叶片硝酸还原酶活性等差异极显著.在氮营养缺乏时,高效玉米基因型根系能比低效玉米基因型提供更多的分泌物.不同玉米基因型间硝酸还原酶的活性与氮营养效率呈现显著正相关关系.
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| 关 键 词： | 氮胁迫 玉米基因型 硝酸还原酶 根分泌物 |
| 文章编号： | 1008-1631(2006)01-0026-03 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-02-27 |
A Study on Physiological Traits of Maize Genotypes with Different Response to Nitrogen Stress |
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| SUN Shi-you,ZHANG Guo-yin,WANG Li-ying,GENG Nuan,WANG Ling. A Study on Physiological Traits of Maize Genotypes with Different Response to Nitrogen Stress[J]. Journal of Hebei Agricultural Sciences, 2006, 10(1): 26-28 |
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| Authors: | SUN Shi-you ZHANG Guo-yin WANG Li-ying GENG Nuan WANG Ling |
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| Affiliation: | Institute of Agricultural Recourse and Environment, Hebei Academy of Agriculture and Forestry Science, Shijiazhuang 050051, China |
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| Abstract: | Adopting hydroponics measures,the content of root exudation and the activity of nitrogen reducing enzyme for maize genotypes with different N efficiency was analyzed and studied in the plant growth chamber.One high and one low nitrogen efficiency maize genotype were used in this experiment.The results showed that the root exudations including total solubility sugar,amino acid and phenolic compound were obviously different from each other for the maize genotypes with different nitrogen efficiency under the condition of nitrogen stress.The roots of maize genotypes with high nitrogen efficiency could produce more exudations than the one with low nitrogen efficiency.The correlation between the activity of nitrogen reducing enzyme and nitrogen efficiency of maize genotypes was significant positive under the condition of nitrogen deficiency. |
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| Keywords: | Nitrogen stress Maize genotype Nitrogen reducing enzyme Root exudates |
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