氟硅唑与恶霉灵复配对棉花黄萎病菌的联合毒力测定

wf(2016)

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Abstract
采用菌饼法测定了氟硅唑与恶霉灵复配制剂对棉花黄萎病菌的联合毒力。通过测定抑菌圈直径,计算生长抑制率、毒力回归式、EC50和共毒系数,结果表明:4种不同配比的氟硅唑与恶霉灵复配制剂对棉花黄萎病菌有明显的协同增效作用,共毒系数均大于200,其中氟·恶(1∶9)最大为243.53,其次是氟·恶(7∶5)和氟·恶(4∶8),氟·恶(2∶3)最小为204.98。综合考虑抑菌效果和成本等因素,氟·恶(1∶9)最佳。
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