Selectivity and efficiency of herbicides in weed control on sweet sorghum
| dc.creator | Leandro Galon | |
| dc.creator | Franciele Fátima Fernandes | |
| dc.creator | André Andres | |
| dc.creator | Alexandre Ferreira da Silva | |
| dc.creator | César Tiago Forte | |
| dc.date | 2016 | |
| dc.date.accessioned | 2026-07-07T04:30:08Z | |
| dc.description | The lack of registered herbicides for weed control in sweet sorghum has been a limiting production factor. This study aimed at evaluating the selectivity of herbicides in sweet sorghum and weed control efficiency. A randomized blocks design, with four replications, was used. Treatments consisted of sweet sorghum cultivars (BRS 506, BRS 509 and BRS 511) and herbicides applied alone at pre- emergence (atrazine - 1,500 g ha -1 ; atrazine + s-metolachlor - 1,665 g ha -1 + 1,035 g ha -1 ; flumioxazin - 50 g ha -1 ; s-metolachlor - 1,440 g ha -1 ) and post-emergence (tembotrione - 100.8 g ha -1 ) and sequentially at pre- and post-emergence (atrazine + s-metolachlor + tembotrione - 1,665 g ha -1 + 1,035 g ha -1 + 100.8 g ha -1 ; atrazine + tembotrione - 1,500 g ha -1 + 100.8 g ha -1 ; flumioxazin + tembotrione - 50 g ha -1 + 100.8 g ha -1 ), plus two controls, one weeded and one unweeded. The phytotoxicity rate to sorghum was 98.0 %, 98.0 % and 100 % for tembotrione; 100 %, 98.7% and 100 % for flumioxazin + tembotrione; 100 %, 100 % and 100 % for s-metolachlor + atrazine + tembotrione; and 98.7 %, 98.7 % and 99.7 % for atrazine + tembotrione, respectively to the BRS 509, BRS 506 and BRS 511 cultivars. Tembotrione, flumioxazin + tembotrione, atrazine + s-metolachlor + tembotrione and atrazine + tembotrione showed a good control rate of Ipomoea indivisa , Digitaria ciliaris and Urochloa plantaginea , but did not present selectivity to the sorghum cultivars. Atrazine, in general, showed higher selectivity to the yield components of the BRS 509 and BRS 506 cultivars. | |
| dc.format | application/pdf | |
| dc.identifier | 1517-6398 | |
| dc.identifier | https://www.redalyc.org/articulo.oa?id=253046235002 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/463344 | |
| dc.language | en | |
| dc.publisher | Universidade Federal de Goiás | |
| dc.relation | http://www.redalyc.org/revista.oa?id=2530 | |
| dc.rights | Pesquisa Agropecuária Tropical | |
| dc.source | Pesquisa Agropecuária Tropical (Brasil) Num.2 Vol.46 | |
| dc.subject | Agrociencias | |
| dc.title | Selectivity and efficiency of herbicides in weed control on sweet sorghum | |
| dc.type | artículo científico |