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河南省小麦纹枯病菌及小麦全蚀病菌对丙环唑的敏感性
Sensitivity of Rhizoctonia cereal?s and Gaeumannomyces graminsis isolates from Henan Province to propiconazol
查看参考文献5篇
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文摘
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小麦纹枯病和小麦全蚀病是河南省小麦生产上重要的土传病害,发病面积分别在300万和30万hm~2。近年来,由于小麦高产栽培措施(早播、密植、高肥)的推广,以及气候条件适宜、农机跨区作业等原因,两种病害的发生面积日益增大,为害程度日趋加重。目前,控制两类病害主要依靠三唑类药剂种子处理、结合春季药剂喷雾来进行化学防治。但随着同类药剂的连续应用,2种病菌对三唑类药剂的敏感性降低,或产生了不同程度的抗药性。目前需检测不同地区菌株对药剂的敏感性以便指导生产中的合理用药。 |
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其他语种文摘
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The sensitivity of Rhizoctonia cerealis and Gaeumannomyces graminsis to propiconazol was determined by measuring the mycelial growth on the fungicide-amended media using 98 isolates of R. cerealis and 88 isolates of G. graminsis from Henan Province. The results indicated that 50% effective concentration (EC_(50)) values of R. cerealis and G. graminsis to propiconazol ranged from 0.119 3 to 2.581 3,0.001 5 to 0.172 4 μg · mL~(-1),respectively. The results of the frequency analysis revealed that low sensitivity subcolony to propiconazol had been discovered in R. cerealis and G. graminsis. The mean EC_(50) values of (0.484 8±0.200 9) and (0.049 3 ±0.029 0) μg · mL~(-1) for most isolates showed a unimodal curve distribution, which were treated as the sensitivity baseline of R. cerealis and G. graminsis to propiconazol, respectively. The isolates collected from different regions showed different sensitivities. The results provided a theoretical basis for the efficient application of propiconazol in the control of wheat sharp eyespot and take-all in the field of Henan Province. |
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来源
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植物病理学报
,2017,47(2):278-281 【核心库】
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DOI
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10.13926/j.cnki.apps.000051
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关键词
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河南省
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小麦纹枯病菌
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小麦全蚀病菌
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地址
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河南科技大学林学院, 洛阳, 471003
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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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国家公益性行业（农业）科研专项
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国家自然科学基金
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河南科技大学大学生研究训练计划
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文献收藏号
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CSCD:5978781
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参考文献 共
5
共1页
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1.
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CSCD被引
5
次
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2.
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植物病理学报,2014,44(2):139-146
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CSCD被引
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3.
Hamda M S. The escalating threat of Rhizoctonia cerealis, the causal agent of sharp eyespot in wheat.
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CSCD被引
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4.
Yun Y Z. Sensitivity to silthiofam, tebuconazole and difenoconazole of Gaeumannomyces graminis var. tritici isolates from China.
Pest Management Science,2012,68(8):1156-1163
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CSCD被引
5
次
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5.
Xu J Q. Sensitivity of Rhizoctonia cerealis to triadimefon in Henan Province (in Chinese).
植物病理学报,2017,47(1):138-141
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CSCD被引
2
次
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