Combined Toxicity of Tea Saponin and Macleaya alkaloid Against Four Pathogenic Bacteriay
In order to determine the combined toxicity of Macleaya alkaloid and tea saponin to Rhizoctonia solani,Fusarium oxysporum f.sp.Vasinfectum(ATK)Sndyder&Hansln,Botryosphaeria berengeriana f.sp piricola and Colletotrichum gloeosporioides,the growth rate method was used to determine the toxicity of Macleaya alkaloid,tea saponin and their mixtures with different proportions to the four pathogens,and the toxicity ratio and synergism coefficient of tea saponin and Macleaya alkaloid were determined by the interaction method.The results showed that the combined toxicity of Macleaya alkaloid and tea saponin to Rhizoctonia solani and Botryosphaeria berengeriana f.sp piricola was mainly additive,and the mixture of Macleaya alkaloid and tea saponin with a mass ratio of 1∶48.7 showed synergistic effect on Rhizoctonia solanit,with a synergistic coefficient of 1.536;the mixture of Macleaya alkaloid and tea saponin with a mass ratio of 1∶20.2 showed a good synergistic effect on Colletotrichum gloeosporioides,with a synergistic coefficient of 1.537.
万方数据
维普
