郝卫宁;李辉;杨柳;耿鹏;胡美英;

• 1:华南农业大学天然农药与化学生物学教育部重点实验室

摘要(Abstract)：

为明确茶皂素和噻菌灵混配对柑橘青霉和绿霉病菌的抑制作用,采用菌丝生长速率法和共毒系数法测定了茶皂素、噻菌灵及其混剂对柑橘青霉和绿霉病菌的室内毒力以及增效比率(SR),同时测定了茶皂素与噻菌灵混剂对沙糖橘采后青绿霉菌的防治效果及其对贮藏品质的影响。结果表明,茶皂素与噻菌灵配比为8∶2时对柑橘青霉和绿霉病菌具有显著的防治效果,SR分别为2.77和1.60,表现为显著增效作用。茶皂素与噻菌灵混剂(8∶2)在浓度为400mg.L-1时可有效抑制沙糖橘采后青绿霉病的发生,发病率仅为1.53%,显著低于对照的86.59%。混剂处理有效保持了沙糖橘的品质,延缓了果肉可溶性固形物、可滴定酸及抗坏血酸含量的下降。

关键词(KeyWords)： 沙糖橘;茶皂素;噻菌灵;柑橘青霉;柑橘绿霉;品质

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(30871660);; 广东省科技计划项目(2008B050100045)

作者(Author): 郝卫宁;李辉;杨柳;耿鹏;胡美英;

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