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首页> 外文学位 >Phytotoxicity and efficacy using tank mixtures of Harmony RTM Extra with growth-regulating herbicides on selected southern turfgrasses.
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Phytotoxicity and efficacy using tank mixtures of Harmony RTM Extra with growth-regulating herbicides on selected southern turfgrasses.

机译：使用Harmony RTM Extra罐装混合物与可调节生长速度的除草剂对选定的南部草皮草进行植物毒性和功效分析。

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摘要

Research was conducted to evaluate the phytotoxicity and efficacy of tank mixtures of MCPP, 2,4-D, and HarmonyRTM Extra on southern turfgrass species and common broadleaf weed species. The objective was to devise a combination that provided lower phytotoxicity and comparable weed efficacy to TrimecRTM (MCPP+2,4-D+dicamba). The target turfgrass species was Floratam St. Augustinegrass [Stenotaphrum secundatum (Walt.) Ktze.], a particularly sensitive species to phenoxy herbicides. In addition to Floratam, other popular southern turfgrass species were assayed for phytotoxicity. These included common St. Augustinegrass [ Stenotaphrum secundatum (Walt.) Ktze.], common bermudagrass [ Cynodon dactylon (L.) Pers.], and common centipedegrass [ Eremochloa ophiuroides (Munro) Hack.]. Broadleaf weed species selected for efficacy included white clover (Trifolium repens L.), annual aster (Aster subulatus Michx.), lawn burweed [ Soliva pterosperma (Juss.) Less.], and bristly mallow [Modiola caroliniana (L.) G. Don]. After field evaluations, a tank mixture was applied consisting of MCPP plus 2,4-D plus HarmonyRTM Extra at the rate of 840+280+33 g ai ha-1. This provided lower phytotoxicity to selected southern turfgrass species and comparable weed efficacy to dicot weed species when compared to TrimecRTM.
机译：进行了研究以评估MCPP，2,4-D和HarmonyRTM Extra桶混物对南方草皮草物种和常见阔叶杂草物种的植物毒性和功效。目的是设计一种组合，该组合可提供较低的植物毒性，并具有与TrimecRTM（MCPP + 2,4-D +麦草畏）相当的杂草功效。目标草皮物种是Floratam St. Augustinegrass [Stenotaphrum secundatum（Walt。）Ktze。]，它是对苯氧基除草剂特别敏感的物种。除了弗洛拉塔姆，还测定了其他流行的南部草皮草的植物毒性。其中包括普通的圣奥古斯丁草（Stenotaphrum secundatum（Walt。）克兹。]，普通的百慕大草[Cynodon dactylon（L.）Pers。]和普通的ipe草[Eremochloa ophiuroides（Munro）Hack。]。选择用于功效的阔叶杂草种类包括白三叶草（Trifolium repens L.），一年生紫苑（Aster subulatus Michx。），草丛苔[Soliva pterosperma（Juss.Less。）]和刚毛锦葵[Modiola caroliniana（L.）G。唐]。经过现场评估后，以840 + 280 + 33 g ai ha-1的比例施涂由MCPP加2,4-D加HarmonyRTM Extra组成的罐混物。与TrimecRTM相比，这对选定的南部草皮草物种具有较低的植物毒性，并且与双子叶植物杂草具有相当的杂草功效。

著录项

  • 作者

    Shipp, Matthew Patrick.;

  • 作者单位

    Stephen F. Austin State University.;

  • 授予单位 Stephen F. Austin State University.;
  • 学科 Agronomy.;Botany.;Plant biology.
  • 学位 M.S.
  • 年度 2001
  • 页码 92 p.
  • 总页数 92
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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