On-line version ISSN 1678-4499
ALVES, Aldo and FORSTER, Reinaldo. Effect of some herbicides on okra crop in trials performed in the greenhouse. Bragantia [online]. 1970, vol.29, n.unico, pp. 361-367. ISSN 1678-4499. http://dx.doi.org/10.1590/S0006-87051970000100033.
Two okra (Hibiscus esculentus L.) varieties were tested for their tolerance to sixteen herbicides at one rate each, as a pre-planting and as a pre-emergence applications in greenhouse trials. The results with the incorporated herbicides showed that only tri-fluralin at 0,75 kg/ha active ingredient was promising to this crop. Different results were obtained with the pre-emergence applications of the group of urea and anilide herbicides. While no symptoms of injury were observed with chloroxuron, norea, linuron, and propachlor, injury symptoms were evident with diuron, fluometuron, metobromuron and siduron. The four triazine herbicides were very damaging to the okra plants. Under the conditions of these tests, only the herbicides trifluralin, chloroxuron, norea, and linuron were promising to the okra crop.