从番茄植物的几种有机成分中，选出了５种成分进行单一和２种成分混合的生物活性测定试验，它们分别为：Ａ．邻苯二甲酸二异辛酯，Ｂ．邻苯二甲酸二丁酯，Ｃ．水杨酸甲酯，Ｄ．水杨酸，Ｅ．鞣酸选用生菜、白菜和萝卜作为受体结果表明，Ｄ、Ｅ的抑制作用的临界浓度为５×１０４ｍｏｌ／Ｌ，Ａ、Ｂ、Ｃ的抑制作用的临界浓度为２．５×１０２ｍｏｌ／Ｌ；酸与酯之间存在不同程度的协同作用或拮抗作用；混合物的组分、组分物质的量比和受体种类都对化感作用的效应大小有很大影响 From several organic components of tomato plants, five components were selected for bioassay of single and two components, which were: Dioctyl phthalate, B. Dibutyl phthalate, C. Methyl salicylate, D. Salicylic acid, E. Tannic acid  selection of lettuce, cabbage and radish as receptors  results show that the critical concentration of D, E inhibition of 5 × 10 4 mol / L, A, B, C critical inhibitory effect of the critical concentration of 2.5 × 10  2mol / L; There are different degrees of synergism or antagonism between the acid and the ester; mixture components, the amount of component substances and receptor species have a significant effect on the size of the effect of allelopathy 