以人参根源愈伤组织为受体,对人参根系分泌物中11种酸性物质进行了统一的化感活性对比,并进一步对其中活性最强的6种物质进行互作效应分析.结果表明:己二酸、乳酸分别是抑制、促进活性最强的物质其RI分别为-0.73,0.61;乳酸与其余化感物质互作效应是拮抗为主,即二者混合后均表现为原有活性降低,其中乳酸与油酸互作比例为1:100时,拮抗活性最强,与苯甲酸互作比例为100:1时,拮抗活性最弱.这说明人参根系分泌物对后茬人参生长具有显著的化感活性.%Taking ginseng root callus as receptors,11 kinds of acid of the secretion of ginseng root were taken into a unified allelopathic activity comparison,and interaction effect of 6 kinds of substances with the strongest allelopathic activity was further analyzed.The results showed that adipic acid and lactic acid were respectively the activity of suppression,promotion of the strongest substances,with the RIvalue-0.73,0.61;the interaction effect of lactic acid with the rest of the allelochemicals was mainly antagonism,named after the mixure of the two,the original activity was reduced,with the lactic acid and oleic acid for the proportion of 1:100,showing the strongest antagonistic activity,with benzoic acid as a ratio of 100:1,the weakest antagonist activity.The effects of ginseng root secretion on succeeding crop ginseng growth showed significant allelopathic activity.
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