| 银川大豆根腐病病原鉴定及种衣剂对其防治效果 |
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| 引用本文： | 杜宜新,石妞妞,阮宏椿,连金番,甘林,陈福如.银川大豆根腐病病原鉴定及种衣剂对其防治效果[J].中国农学通报,2021,37(8):103-109. |
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| 作者姓名： | 杜宜新 石妞妞 阮宏椿 连金番 甘林 陈福如 |
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| 作者单位： | 1.福建省农业科学院植物保护研究所,福州 350013;2.宁夏农林科学院农作物研究所,银川 750002 |
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| 基金项目： | 福建省农业科学院闽宁项目“宁夏大豆主要病虫害绿色防控技术集成与示范”(MN2018-4);福建省农业科学院自由探索项目“福建果蔬炭疽病菌基于形态学和DNA条形码的分类研究”(AA2018-23);福建省省属公益类科研院所基本科研专项“大豆炭疽病菌种群及其对苯醚甲环唑的抗性研究”(2020R10240010);福建省农作物新品种区域试验项目“福建省旱作作物品种抗病性鉴定”(2018ZZ005) |
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| 摘 要： | 为明确宁夏银川地区大豆根腐病病原及种衣剂对其防治效果,于2018—2019年从宁夏银川贺兰、兴庆和永宁地区大豆产区采集大豆根腐病病样,采用组织分离法分离病原菌,通过形态学鉴定并结合ITS和TEF序列分析确定病原菌的分类地位;通过田间试验明确6种种衣剂对大豆根腐病的防治效果。分离纯化获得126株镰刀菌,属于4个种,分别为茄病镰刀菌(Fusarium solani)、尖孢镰刀菌(F. oxysporum)、木贼镰刀菌(F. equiseti)和短肥镰刀菌(F. brachygibbosum),占比分别为51.59%、24.60%、13.49%和10.32%。4种镰刀菌对大豆均有致病作用,造成根腐病症状。供试6种种衣剂在播种后20天的防治效果均在65%以上,60天后防治效果均在60%以下。造成宁夏银川地区大豆根腐病的病原菌为茄病镰刀菌、尖孢镰刀菌、木贼镰刀菌和短肥镰刀菌。供试种衣剂对大豆根腐病均有一定的防治效果,但在大豆成株期防治效果下降。
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| 关 键 词： | 大豆 根腐病 镰刀菌 种衣剂 防治效果 |
| 收稿时间： | 2020-10-09 |
Study on Pathogenic Fungi Causing Soybean Root Rot in Yinchuan and Field Disease Control Efficiency of Seed Coating |
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| Du Yixin,Shi Niuniu,Ruan Hongchun,Lian Jinfan,Gan Lin,Chen Furu.Study on Pathogenic Fungi Causing Soybean Root Rot in Yinchuan and Field Disease Control Efficiency of Seed Coating[J].Chinese Agricultural Science Bulletin,2021,37(8):103-109. |
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| Authors: | Du Yixin Shi Niuniu Ruan Hongchun Lian Jinfan Gan Lin Chen Furu |
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| Institution: | 1.Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013;2.Crops Institute, Ningxia Academy of Agriculture and Forestry Science, Yinchuan 750002 |
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| Abstract: | The current study aims to clarify the pathogenic fungi causing soybean root rot and control efficiency of different kinds of seed coating in the field. Pathogen samples of soybean root rot disease were collected from the soybean production area in Helan, Xingqing and Yongning of Ningxia during 2018-2019. The pathogens were isolated by tissue separation, and identified according to morphology and a multilocus phylogenetic analysis (ITS and TEF). Then the control efficiency of six kinds of seed coating were assessed in field. The results showed that 126 strains were isolated and identified, belonging to four Fusarium species, i.e., F. solani, F. oxysporum, F. equiseti and F. brachygibbosum, which accounted for 51.59%, 24.60%, 13.49% and 10.32%, respectively. Pathogenicity assay showed that four Fusarium species were pathogenic against soybean, showing root rot. The field test demonstrated that the control efficiency of the six kinds of seed coating were more than 65% 20 days after sowing, and the control efficiency was lower than 60% 60 days after sowing. In summary, four Fusarium species on soybean are observed in Yinchuan and the tested kinds of seed coating have certain control efficiency, but the control efficiency decreases at the adult-plant stage of soybean. |
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| Keywords: | soybean soybean root rot Fusarium spp seed coating control efficiency |
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