| 不同化感物质对番茄根系吸收矿质元素的影响 |
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| 引用本文： | 耿广东,张素勤,程智慧. 不同化感物质对番茄根系吸收矿质元素的影响[J]. 中国蔬菜, 2009, 1(4): 48-51 |
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| 作者姓名： | 耿广东 张素勤 程智慧 |
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| 作者单位： | 1.贵州大学农学院，贵阳 550025；;2.西北农林科技大学园艺学院，杨凌 712100 |
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| 基金项目： | 国家科技攻关重大专项资助项目，贵州大学人才基金，贵州省科学技术基金 |
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| 摘 要： | 以番茄为试材，研究了邻苯二甲酸、邻苯二甲酸二丁酯和二苯胺3种化感物质对番茄幼苗根系吸收矿质元素的影响。结果表明，邻苯二甲酸、邻苯二甲酸二丁酯和二苯胺均能影响番茄幼苗根系对N、P、K的吸收。随着邻苯二甲酸浓度的增加，其对番茄幼苗根系吸收N、P、K的抑制作用增强；低浓度的邻苯二甲酸二丁酯可以促进番茄幼苗根系对N的吸收，抑制对P、K的吸收，高浓度时对N、P、K的吸收均起抑制作用；低浓度的二苯胺可以促进番茄幼苗根系对N、K的吸收，抑制对P的吸收。从整体来看，这3种化感物质对P的吸收影响最大。
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| 关 键 词： | 番茄 化感物质 矿质元素 吸收 |
| 收稿时间： | 2008-07-09; |
Effects of Different Allelochemicals on Mineral Elements Absorption of Tomato Root |
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| GENG Guang-dong,ZHANG Su-qin,CHENG Zhi-hui. Effects of Different Allelochemicals on Mineral Elements Absorption of Tomato Root[J]. China Vegetables, 2009, 1(4): 48-51 |
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| Authors: | GENG Guang-dong ZHANG Su-qin CHENG Zhi-hui |
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| Affiliation: | 1.College of Agronomy,Guizhou University,Guiyang 550025,Guizhou，China;2.College of Horticulture,Northwest A & F University,Yangling 712100,Shaanxi,China |
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| Abstract: | Effects of 1,2-benzenedicarboxylic acid,dibutyl phthalate and diphenylamine on mineral elements absorption of young tomato root system were studied in this paper.The results showed that the absorption of N,P and K were affected by these three allelochemicals.The inhibitive effect of 1,2-benzenedicarboxylic acid on the absorption of N,P and K increased with its concentration rising.Low concentration of dibutyl phthalate increased the absorption of N,but decreased the absorption of P and K.Its high concentration restrained the absorption of N,P and K,while the low concentration of diphenylamine could stimulate the absorption of N and K,but restrain the absorption of P.Generally,the P absorption was mostly affected by these allelochemicals. |
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