{"title":"Herbicides for Monochoria (Monochoria vaginalis) Control in Transplanted Rice","authors":"Zahra Hazrati, Bijan Yaghoubi, Pershang Hosseini, Bhagirath Singh Chauhan","doi":"10.1017/wet.2023.50","DOIUrl":null,"url":null,"abstract":"\n Monochoria is an introduced weed to Iran. Two field experiments were conducted to identify soil-applied and foliar-applied herbicides for monochoria control in transplanted rice. Pre-packaged herbicides triafamone plus ethoxysulfuron applied at 40 g ai ha-1, pyrazosulfuron-ethyl plus pretilachlor at 382.5 g ai ha-1, and pendimethalin plus clomazone at 1200 g ai ha-1 reduced monochoria biomass by 100%, 100%, and 14%, respectively, and a single application of flucetosulfuron at 30 g ai ha-1, pendimethalin at 990 g ai ha-1, thiobencarb at 2750 g ai ha-1, and pretilachlor at 1000 g ai ha-1 by 100%, 99%, 75%, and 56%, respectively, compared with the nontreated control. Tank-mixed bensulfuron-methyl at 45 g ai ha-1 with pretilachlor, thiobencarb, or pendimethalin provided 100% control of monochoria. Rice height, and straw and grain yield were greater in herbicide treatments than in the nontreated and hand-weeded control, indicating the advantages of chemical monochoria control over manual weeding. Full-season monochoria interference reduced rice grain yield by 32%. In the second study, foliar-applied herbicides triafamone plus ethoxysulfuron, flucetosulfuron, 2,4-D at 1080 g ai ha-1, dicamba plus 2,4-D at 928 g ai ha-1, bispyribac-sodium at 31.25 g ai ha-1, bentazon plus MCPA at 1150 g ai ha-1, pyribenzoxim at 30 g ai ha-1, and propanil at 5400 g ai ha-1 applied at 4-5 leaf seedlings of monochoria provided ≥97% control and prevented 100% of its regrowth, with the exception of propanil. This study shows that monochoria control can be achieved by many residual and foliar-applied herbicides with different mechanisms of action.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Weed Technology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1017/wet.2023.50","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Monochoria is an introduced weed to Iran. Two field experiments were conducted to identify soil-applied and foliar-applied herbicides for monochoria control in transplanted rice. Pre-packaged herbicides triafamone plus ethoxysulfuron applied at 40 g ai ha-1, pyrazosulfuron-ethyl plus pretilachlor at 382.5 g ai ha-1, and pendimethalin plus clomazone at 1200 g ai ha-1 reduced monochoria biomass by 100%, 100%, and 14%, respectively, and a single application of flucetosulfuron at 30 g ai ha-1, pendimethalin at 990 g ai ha-1, thiobencarb at 2750 g ai ha-1, and pretilachlor at 1000 g ai ha-1 by 100%, 99%, 75%, and 56%, respectively, compared with the nontreated control. Tank-mixed bensulfuron-methyl at 45 g ai ha-1 with pretilachlor, thiobencarb, or pendimethalin provided 100% control of monochoria. Rice height, and straw and grain yield were greater in herbicide treatments than in the nontreated and hand-weeded control, indicating the advantages of chemical monochoria control over manual weeding. Full-season monochoria interference reduced rice grain yield by 32%. In the second study, foliar-applied herbicides triafamone plus ethoxysulfuron, flucetosulfuron, 2,4-D at 1080 g ai ha-1, dicamba plus 2,4-D at 928 g ai ha-1, bispyribac-sodium at 31.25 g ai ha-1, bentazon plus MCPA at 1150 g ai ha-1, pyribenzoxim at 30 g ai ha-1, and propanil at 5400 g ai ha-1 applied at 4-5 leaf seedlings of monochoria provided ≥97% control and prevented 100% of its regrowth, with the exception of propanil. This study shows that monochoria control can be achieved by many residual and foliar-applied herbicides with different mechanisms of action.
Monochoria是一种引入伊朗的杂草。进行了两个田间试验，以确定土壤施用和叶面施用的除草剂用于控制移植水稻的单子叶枯病。预包装除草剂三甲硫酮加乙氧基磺隆（40 g ai ha-1）、吡唑磺隆乙基加丙二甲草胺（382.5 g ai ha-）和戊二甲灵加氯马宗（1200 g ai ha-2）分别使单壳虫生物量减少了100%、100%和14%，与未处理的对照相比，1000 g ai ha-1的预甲草胺分别提高了100%、99%、75%和56%。将45 g ai ha-1的甲基苄磺隆与预甲草胺、硫本卡伯或二甲灵罐混合，可100%控制单孢菌。除草剂处理的水稻株高、秸秆产量和粮食产量均高于未处理和人工除草处理，这表明化学单孢控制比人工除草具有优势。全季单子叶植物干扰使水稻产量下降32%。在第二项研究中，叶面施用除草剂三唑酮加乙氧基磺隆、氟嘧磺隆、2,4-D（1080 g ai ha-1）、麦草畏加2,4-D（928 g ai ha-1）、双嘧菌素钠（31.25 g ai ha-）、苯达松加MCPA（1150 g ai ha-2）、吡苯并肟（30 g ai ha-3）和丙醇（5400 g ai ha-1）对单子叶菊4-5叶苗的生长提供了≥97%的控制，并阻止了其100%的再生，除了丙醇。本研究表明，通过多种不同作用机制的残留除草剂和叶面施用除草剂，可以实现单孢菌的控制。
期刊介绍：
Weed Technology publishes original research and scholarship in the form of peer-reviewed articles focused on understanding how weeds are managed.
The journal focuses on:
- Applied aspects concerning the management of weeds in agricultural systems
- Herbicides used to manage undesired vegetation, weed biology and control
- Weed/crop management systems
- Reports of new weed problems
-New technologies for weed management and special articles emphasizing technology transfer to improve weed control
-Articles dealing with plant growth regulators and management of undesired plant growth may also be accepted, provided there is clear relevance to weed science technology, e.g., turfgrass or woody plant management along rights-of-way, vegetation management in forest, aquatic, or other non-crop situations.
-Surveys, education, and extension topics related to weeds will also be considered
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
