| 孙道旺1, 王 群2, 何成兴2, 张艳军3, 胡选江3, 刘 佳3, 卢文洁1, 王莉花1*.苦荞根结线虫病流行规律调查及抗性资源和防控药剂筛选[J].植物保护,2025,51(4):373-379. |
| 苦荞根结线虫病流行规律调查及抗性资源和防控药剂筛选 |
| Survey on the epidemic pattern of Fagopyrum tataricum root-knot nematode disease and screening of resistance resources and nematicides |
| 投稿时间：2024-07-22 修订日期：2024-08-22 |
| DOI：10.16688/j.zwbh.2024387 |
| 中文关键词: 根结线虫 苦荞 流行规律 抗性资源 防控药剂 |
| 英文关键词:root-knot nematode Fagopyrum tataricum epidemic pattern resistant germplasm nematicides |
| 基金项目:财政部和农业农村部:国家现代农业产业技术体系(CARS-07-C-2)；云南省重大科技专项计划（202202AE090020） |
| 作者 | 单位 | E-mail | | 孙道旺1, 王 群2, 何成兴2, 张艳军3, 胡选江3, 刘 佳3, 卢文洁1, 王莉花1* | 1. 云南省农业科学院生物技术与种质资源研究所, 云南省农业生物技术重点实验室, 农业农村部西南作物基因资源与种质创制重点实验室, 昆明 650205
2. 云南省农业科学院农业环境资源研究所, 昆明 650205
3. 云南省玉溪市农业科学院, 玉溪 653100 | 908242246@qq.com |
|
| 摘要点击次数: 76 |
| 全文下载次数: 424 |
| 中文摘要: |
| 为有效防控苦荞根结线虫病, 调查了苦荞根结线虫病的田间流行规律, 并筛选了根结线虫病的云南苦荞抗性资源和有效防控药剂。田间调查结果表明:在苦荞1叶期时没有发现根结线虫为害症状, 3叶期症状明显, 随后在5叶期呈快速侵染, 并在开花末期-灌浆期达到发病高峰。抗性品种筛选结果显示, 在供试的 47 份云南苦荞地方品种中, 2份(4.25%)为高抗(HR), 35 份(74.46%)为抗(R), 9份(19.15%)为中抗(MR), 1份(2.13%)为感(S)。药剂筛选试验结果表明:在测试的6种杀线虫剂中, 有4个处理的防治效果在85%以上, 并且这4个处理间防效差异不显著(P>0.05)。这4个处理中, 用量为1.2 kg/hm2 的41.7%氟吡菌酰胺SC的防治效果最好, 达到 92.65%。其次是用量为 45 kg/hm2 的10%噻唑磷 GR、用量为 1.05 kg/hm2 的 41.7%氟吡菌酰胺 SC 和用量为 30 kg/hm2 的 2 亿活孢子/g 淡紫拟青霉 DP, 防治效果分别为 88.58%、86.14% 和 85.14%。本文明确了苦荞根结线虫病的流行规律, 筛选了2份高抗苦荞线虫病的地方品种资源(‘迪庆苦荞’‘泸水苦荞-1’)和3个高效防控药剂(氟吡菌酰胺SC、噻唑膦GR、2亿活孢子/g淡紫拟青霉DP), 研究结果为苦荞根结线虫病害综合防控提供科学依据。 |
| 英文摘要: |
| To effectively control root-knot nematode disease in tartary buckwheat (Fagopyrum tataricum), its epidemic pattern was investigated in the field, and resistant germplasm resources and effective nematicides were screened. Field survey results showed that no symptoms were observed at the 1-leaf stage; symptoms became apparent at the 3-leaf stage, followed by a rapid infection phase at the 5-leaf stage, with disease peaking from the late flowering to grain-filling stages. Among 47 local tartary buckwheat landraces from Yunnan, two (4.25%) were classified as highly resistant (HR), 35 (74.46%) as resistant (R), nine (19.15%) as moderately resistant (MR), and one (2.13%) as susceptible (S). Of the six tested nematicides, four showed control efficacy above 85%, with no significant difference among them (P>0.05). The best control effect (92.65%) was observed with 41.7% fluopyram SC at 1.2 kg/hm2, followed by 10% fosthiazate GR at 45 kg/hm2 (88.58%), 41.7% fluopyram SC at 1.05 kg/hm2 (86.14%), and Paecilomyces lilacinus 2×108 spores/g DP at 30 kg/hm2 (85.14%). These findings clarify the epidemic progression of the disease and identify two highly resistant landraces (‘Diqing Kuqiao’ and ‘Lushui Kuqiao-1’) and three effective control nematicides, providing a scientific basis for integrated disease management. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
