Lethal concentration of clomazone, metsulfuron-metil, and quinclorac for silver catfish, Rhamdia quelen, fingerlings

Ciência Rural

Denise Dos Santos Miron²  Lenise Vargas Flores Da Silva¹  Jaqueline Ineu Golombieski²  Sérgio Luiz De Oliveira Machado¹  Enio Marchezan¹  Bernardo Baldisserotto¹ 

[1] ,Universidade Federal de Santa Maria

关键词: quinclorac;    clomazone;    metsulfuron-menthyl;    Rhamdia quelen;    silver catfish;    LC50;    quinclorac;    clomazone;    metsulfuron-metil;    jundiá;    Rhamdia quelen;    CL50;   

DOI  :  10.1590/S0103-84782004000500021

来源: SciELO

【 摘 要 】

The goal of the present work was to determine the lethal concentration (LC50) (96h) of clomazone, metsulfuron-methyl, and quinclorac, herbicides used in rice culture, for the silver catfish, Rhamdia quelen. Fingerlings were exposed to different concentrations of the herbicides. The LC50s were 7.32µL L-1 for clomazone and 395mg L-1 for quinclorac. The LC50 for metsulfuron-methyl was not obtained since all fingerlings survived even at 1200mgL-1. Probably only clomazone can lead to mortality among silver catfish reared in the rice culture system.

【 授权许可】

CC BY   
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