期刊论文详细信息
Planta Daninha
Dose-response curve to soil applied herbicides and susceptibility evaluation of different amaranthus species using model identity
M.a. Raimondi1  R.s. Oliveira J.r.1  J. Constantin1  F.a. Rios1  A. Gemelli1  R.t. Raimondi1 
关键词: cotton;    dose-response curve;    pigweed;    tolerance;    algodão;    curva de dose-resposta;    caruru;    tolerância;   
DOI  :  10.1590/S0100-83582015000100016
来源: SciELO
PDF
【 摘 要 】

Greenhouse studies were conducted in 2008-2009 with the objective of adjusting dose-response curves of the main soil-applied herbicides currently used in cotton for the control of Amaranthus viridis, A. hybridus, A. spinosus, A. lividus, as well as comparing susceptibility among different species, using the identity test models. Thirty six individual experiments were simultaneously carried out in greenhouse, in a sandy clay loam soil (21% clay, 2.36% OM) combining increasing doses of the herbicides alachlor, clomazone, diuron, oxyfluorfen, pendimethalin, prometryn, S-metolachlor, and trifluralin applied to each species. Dose-response curves were adjusted for visual weed control at 28 days after herbicide application and doses required for 80% (C80) and 95% (C95) control were calculated. All herbicides, except clomazone and trifluralin, provided efficient control of most Amaranthus species, but substantial differences in susceptibility to herbicides were found. In general, A. lividus was the least sensitive species, whereas A. spinosus demonstrated the highest sensitivity to herbicides. Alachlor, diuron, oxyfluorfen, pendimethalin, S-metolachlor, and prometryn are efficient alternatives to control Amaranthus spp. in a range of doses that are currently lower than those recommended to cotton.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

【 预 览 】
附件列表
Files Size Format View
RO202005130075785ZK.pdf 758KB PDF download
  文献评价指标  
  下载次数:4次 浏览次数:8次