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Resistance Induced by Chitosan Oligosaccharide to Rice Sheath Blight
Author(s): 
Pages: 103-106
Year: Issue:  8
Journal: Guizhou Agricultural Sciences

Abstract: 为高效安全地控制水稻纹枯病,研究了壳寡糖诱发水稻对纹枯病的诱导抗病性.结果表明,壳寡糖对纹枯菌的菌丝和菌核无明显的抑制作用.但在水稻成株期,向水稻叶面喷施不同浓度的壳寡糖溶液,水稻植株的发病率和病情指数较对照明显降低,相对防效均在50%以上,且不同浓度的壳寡糖溶液引发水稻对纹枯病的诱导抗病性程度不同,对水稻纹枯病的防效也不一样.浓度为50 μg/mL的壳寡糖溶液引发水稻对纹枯病的诱导抗病性程度最强...
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