温度对假禾谷镰刀菌生长、侵染及茎基腐病发生的影响
Effects of temperature on Fusarium pseudograminearum growth,infection and Fusarium crown rot occurrence
查看参考文献26篇
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文摘
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研究温度对小麦茎基腐病发生的影响,可为病害的发生规律和生态防控措施的研究提供依据。本研究测定了温度对假禾谷镰刀菌菌丝生长、孢子萌发、对寄主小麦侵染以及在植株体内扩展的影响,结果表明,假禾谷镰刀菌菌丝生长的温度范围为4℃ ~30℃,其中28℃最适于菌丝的生长,孢子萌发的温度范围为4℃ ~ 35℃,其中12℃ ~ 30℃较适宜分生孢子萌发,17℃ ~ 28℃为假禾谷镰刀菌侵染小麦的适宜温度范围,假禾谷镰刀菌在小麦植株体内扩展的适宜温度范围在22℃ ~ 30℃;通过不同温度培养试验以及田间小麦不同生育期接种试验测定温度对小麦茎基腐病发生的影响,结果表明,播种期、起身期接种的小麦茎基腐病发生高于越冬苗期接种处理,而此期的温度较越冬苗期利于假禾谷镰刀菌的侵染和小麦茎基腐病的发生。 |
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其他语种文摘
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Understanding of temperature effect on the occurrence of wheat Fusarium crown rot can provide the basis information for the disease development and the ecological control measures.In this study,we evaluated various temperatures on mycelial growth,macroconidia germination,wheat infection and spreading of Fusarium pseudograminearum.The results showed that four local strains of F.pseudograminearum were able to grow at 4℃-30℃,while the optimal temperature was 28℃.The macroconidia could germinate at 4℃-35℃ while 12℃-30℃ was the better temperature range for germination.The suitable temperature range was 17℃-28℃ for F.pseudograminearum infection to wheat.For extension of infectious hyphae in wheat plant,the suitable temperature range was 22℃-30℃.Furthermore,the effect of temperature on the occurrence of Fusarium crown rot by isolate was assessed by temperature cultivation test and field inoculation test at different growth stages of two wheat cultivars.The results showed that the incidence and disease index of Fusarium crown rot inoculated at sowing and standing stages were higher than that of overwintering seedling stage,which indicated that the temperature at the former stages might be more suitable than that at the latter stage for wheat infection of F.pseudograminearum and occurrence of Fusarium crown rot. |
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来源
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植物病理学报
,2020,50(6):723-730 【核心库】
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DOI
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10.13926/j.cnki.apps.000343
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关键词
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小麦茎基腐病
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假禾谷镰刀菌
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菌丝生长
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温度
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侵染
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地址
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河北省农林科学院植物保护研究所, 农业部华北北部作物有害生物综合治理重点实验室;;河北省有害生物综合防治工程技术研究中心, 保定, 071000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0412-0914 |
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学科
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植物保护 |
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基金
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国家重点研发计划
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河北省二期现代农业产业技术体系创新团队项目
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河北省重点研发计划项目
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文献收藏号
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CSCD:6871753
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