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首页> 外文期刊>Japan agricultural research quarterly >Emergence of Glyphosate- and Glufosinate-resistant Italian Ryegrass (Lolium multiflorum) Populations in Japanese Pear Orchards in Japan and their Responses to Several Foliar-applied Herbicides
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Emergence of Glyphosate- and Glufosinate-resistant Italian Ryegrass (Lolium multiflorum) Populations in Japanese Pear Orchards in Japan and their Responses to Several Foliar-applied Herbicides

机译：在日本日本梨果园的草甘膦和抗甘氨酸抗性意大利黑醋鱼（Lolium Multiflorum）种群的出现及其对几个叶面应用除草剂的反应

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In this study, we aimed to evaluate the levels of resistance of Lolium multiflorum populations to glyphosate and glufosinate in Japanese pear orchards in Hamamatsu city, Shizuoka Prefecture, Japan, and determine the efficacy of several foliar-applied herbicides to control this weed during several growth stages. Bioassays using glyphosate-potassium (1.08–2.70 kg ai ha-1 and glufosinate (0.60–1.00 kg ai ha-1) were conducted, and the survival rates of L. multiflorum populations after foliar application were 11.1%–53.3% and 0.0–5.6%, respectively. After treatments with several foliar-applied herbicides in the early growth stage (at a plant length of about 5 cm) with the maximum dosage, the survival rate of plants treated with glyphosate-potassium (38.9%) was not significantly different from that of plants receiving no treatment (100%). However, the survival rates of plants treated with quizalofop-ethyl (0.0%), glufosinate (17.8%), and glufosinate-P-sodium (18.9%) were significantly lower than that of plants receiving no treatment. In the middle growth stage (at a plant length of about 35 cm), although the survival rate of plants treated with quizalofop-ethyl (8.3%) was significantly lower than that of plants receiving no treatment (100%), the survival rates of other plants were not significantly different from that of plants receiving no treatment. These results indicate that L. multiflorum has developed resistance to glyphosate and glufosinate in the orchards, and suggest that the foliar application of quizalofop-ethyl (0.74 kg ai ha-1) is particularly effective for the control of this weed.
机译：在这项研究中，我们旨在评估Holim植物株，日本静冈县日本梨果园对草甘膦抗甘露糖苷和洛磺酸酯的抗性水平，并确定几种叶面应用除草剂在几个生长期间控制这种杂草的疗效阶段。进行使用草甘膦 - 钾的生物测定（1.08-2.70 kg Ai HA-1和Glufosate（0.60-1.00kg Ai Ha-1），叶面申请后L. multiflorum群的存活率为11.1％-53.3％和0.0-分别为5.6％。在早期生长阶段的几种叶面施用除草剂（在植物长度为约5cm）后，用最大剂量，用草甘膦 - 钾（38.9％）处理的植物的存活率不显着不同于接受治疗的植物（100％）。然而，用Quizalofop-乙基（0.0％），甘草酸酯（17.8％）和Glufosate-p-钠（18.9％）处理的植物的存活率显着低于接受没有治疗的植物。在中间生长阶段（植物长度约为35厘米），尽管用Quizalofop-乙基（8.3％）治疗的植物的存活率显着低于接受没有处理的植物（100 ％），其他植物的存活率没有显着与接受没有治疗的植物不同。这些结果表明，L. multiflorum对果园中对草甘膦的抗性产生了抗性，并表明肢体过多乙酯（0.74kg Ai Ha-1）的叶面施用对该杂草的控制特别有效。

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