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。
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.
出处
《中国蔬菜》
北大核心
2009年第4期48-51,共4页
China Vegetables
基金
国家“十五”科技攻关重大专项资助项目(2004BA516A09)
贵州大学人才基金项目
贵州省科学技术基金项目〔黔科合J字(2006)2046号〕
关键词
番茄
化感物质
矿质元素
吸收
Tomato
Allelochemicals
Mineral elements
Absorption
