中国农业科学 ›› 2021, Vol. 54 ›› Issue (5): 969-979.doi: 10.3864/j.issn.0578-1752.2021.05.009

• 植物保护 • 上一篇    下一篇

节节麦在山东省冬小麦田的扩散蔓延及对甲基二磺隆抗性测定

高兴祥1(),李健1(),张帅2,张悦丽1,房锋1,李美1(),柏连阳3(),张双应4   

  1. 1山东省农业科学院植物保护研究所山东省植物病毒学重点实验室,济南 250100
    2全国农业技术推广服务中心,北京 100125
    3湖南省农业科学院杂草生物学及安全防控生物学湖南省重点实验室,长沙410125
    4侨昌现代农业有限公司,山东滨州 256600
  • 收稿日期:2020-04-27 接受日期:2020-06-12 出版日期:2021-03-01 发布日期:2021-03-09
  • 通讯作者: 李美,柏连阳
  • 作者简介:高兴祥,E-mail:xingxiang02@163.com。|李健,E-mail:lijian910@163.cm
  • 基金资助:
    国家重点研发计划(2017YFD0201700);山东省农业科学院农业科技创新工程(CXGC2018E04)

Spread and Resistance Level of Aegilops tauschii to Mesosulfuron- Methyl in Winter Wheat Field of Shandong Province

XingXiang GAO1(),Jian LI1(),Shuai ZHANG2,YueLi ZHANG1,Feng FANG1,Mei LI1(),LianYang BAI3(),ShuangYing ZHANG4   

  1. 1Shandong Key Laboratory of Plant Virology, Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Ji’nan 250100;
    2National Agro-Tech Extension and Service Center, Beijing 100125
    3Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha 410125
    4Shandong Qiaochang Modern Agriculture Co. , Ltd, Binzhou 256600, Shandong
  • Received:2020-04-27 Accepted:2020-06-12 Online:2021-03-01 Published:2021-03-09
  • Contact: Mei LI,LianYang BAI

摘要:

【背景】节节麦(Aegilops tauschii)是小麦的野生近缘植物,是世界公认的十大恶性杂草之一,可安全有效防除节节麦的除草剂品种很少,目前只有ALS抑制剂类除草剂甲基二磺隆作为苗后茎叶处理剂能够应用,该药剂在小麦田应用多年,部分区域发现效果下降,这可能与抗性有关。【目的】明确山东省冬小麦田节节麦扩散蔓延规律以及对甲基二磺隆的抗性水平和抗性机理,为制定山东省冬小麦田节节麦精准区域防控策略提供理论依据。【方法】分别于2009—2010、2013—2014、2018—2019年3次田间调查节节麦在山东省冬小麦田的分布,分析其扩散蔓延规律,室内采用整株生物测定法测定62个节节麦种群对甲基二磺隆的抗性水平,对中等抗性种群进行靶标基因序列检测。【结果】节节麦在山东省冬小麦田10年间呈现快速增长趋势,分布区域逐渐扩大,相对优势度逐渐增大。2009—2010年度,节节麦主要分布在山东西北平原区、中部山区和北部滨海区,平均相对优势度为3.18,在所有杂草中位列第8位;2013—2014年度,节节麦已在山东西北平原区等5个区域广泛分布,平均相对优势度达到7.33,位列第5位;2018—2019年度,节节麦在山东省全境大面积发生,平均相对优势度为11.38,位列第4位。62个节节麦种群中有20个种群对甲基二磺隆产生一定程度的抗性,这些抗性种群分布在节节麦发生早且用药时间长的西北平原区、西南平洼区和中部山区,其他区域未见抗性种群。其中低抗、中抗种群分别为16个(相对抗性指数在5.00—10.00)、4个(相对抗性指数在10.00—15.00),分别占种群总数的25.81%和6.45%,最高相对抗性指数达到12.63,无高抗种群。对4个中抗种群进行靶标位点突变测定,未检测到位点突变。【结论】节节麦已在山东省7大种植区域大面积分布,且分布区域和相对优势度逐年提高。未有对甲基二磺隆高抗的节节麦种群产生,但已有32.26%种群产生低等或中等程度的抗性,未检测到靶标位点突变,可能是代谢酶引起的非靶标抗性。生产中应避免过分依赖甲基二磺隆进行节节麦防控,建议推广深翻、土壤封闭和苗后茎叶处理相结合的节节麦综合防控策略,延缓节节麦抗性发展。

关键词: 节节麦, 甲基二磺隆, 山东省, 抗性水平, 扩散蔓延

Abstract:

【Background】Aegilops tauschii, a malignant weed, is a wild relative plant of wheat, which is one of the 10 most malignant weeds recognized in the world. At present, only the ALS inhibitor herbicide mesosulfuron-methyl can be used as treatment agent for post-seedling. The effect of mesosulfuron-methyl was decreased in some areas after years of application in wheat fields, which may be related to resistance. 【Objective】The objective of this study is to clarify the spread law and resistance level of A. tauschii to mesosulfuron-methyl in Shandong Province, and to provide a theoretical basis for the establishment of the precise regional control of A. tauschii in winter wheat field of Shandong Province. 【Method】The distribution and spread of A. tauschii in winter wheat field of Shandong Province was investigated three times in the decade of 2009-2019, and whole-plant dose response experiments were conducted to determine the resistance level of 62 A. tauschii populations collected in Shandong Province to mesosulfuron-methy in glasshouses.【Result】The results on the spread of A. tauschii showed that the distribution area was gradually expanding and the harm degree was more and more serious. In 2009 to 2010, A. tauschii mainly distributed in Shandong northwest plain region, middle mountain region and northern coastal region, with a total relative abundance 3.18; in 2013 to 2014, A. tauschii had been widely distributed in the northwest plain and other 4 regions, with a total relative abundance 7.33; in 2018 to 2019, this weed occurred in a large area throughout Shandong Province, with a total relative abundance 11.38. The results on resistance level showed that 20 populations had a certain degree of resistance to mesosulfuron-methyl, which distributed in Shandong northwest plain region, southwest plain region and middle mountain region, and no resistance population was found in other areas. The low resistance and middle resistance populations were 16 (RI ranged from 5.00 to 10.00) and 4 (RI ranged from 10.00 to 15.00), which accounted for 25.81% and 6.45% of the total population, respectively. The maximum RI was 12.63, and no high resistance population was found. Target site mutations were detected in 4 middle resistance populations, and no site mutation was detected.【Conclusion】The A. tauschii has been distributed all over Shandong Province, and its dominance and harmfulness are increasing year by year. Although there is no high resistance population to mesosulfuron-methyl, but there are 32.26% low or middle resistance populations. No site mutation was found in the target mechanism test. In view of the winter wheat field dominated by A. tauschii, it is not only necessary to rely on mesosulfuron-methyl for control, but also to promote the comprehensive control of A. tauschii combined with deep ploughing and other agricultural measures. The soil-treated herbicide is also a good way to reduce weed resistance.

Key words: Aegilops tauschii, mesosulfuron-methyl, Shandong Province, resistance level, spread and dissemination