Zooplankton community responses to the mixture of imazethapyr with imazapic and bispyribac-sodium herbicides under rice paddy water conditions

Ciência Rural

Reck, Liange²  Reimche, Geovane Boschmann²  Machado, Sérgio Luiz de Oliveira²  Zanella, Renato¹  Vicari, Michele Câmara de¹  Golombieski, Jaqueline Ineu¹  Piccinini, Fernando² 

[1] UFSM, Santa Maria, Brasil;Universidade Federal de Santa Maria, Brasil

关键词: imidazoalinones;    pyrimidinyloxybenzoic acid;    crustacean;    cladocera;    copepoda;    rotifera;   

DOI  :  10.1590/0103-8478cr6151

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The aim of this study was to assess the effect of concentrations of imazethapyr, imazapic, and bispyribac-sodium herbicides on zooplankton community (Cladocer, Copepod and Rotifer) in rice paddy fields. The decrease of half-life dissipation (DT50) of the herbicides under study in water was: imazethapyr, imazapic, and bispyribac-sodium with an average of 3.75, 3.73 and 1.91 days, respectively. The mixture of imazethapyr with imazapic caused change in the analyzed zooplankton, with an increase in the densities of Cladocer and adult Copepod groups, while bispyribac-sodium caused a reduction of density in Copepod group, both adults and nauplii, in the initial samples. Among the groups, Rotifer was slightly sensitive to the herbicides.

【 授权许可】

Unknown