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- Title
Simulated drift of herbicides applied alone and in tank mix in grapevine.
- Authors
Giacobbo, Clevison Luiz; Galon, Leandro; Zeist, André Ricardo; Guimarães, Sergio; Forte, César Tiago; Tomazetti, Tiago Camponogara; de Lima, Anderson Moraes; Rossarolla, Márcia Denise
- Abstract
Our goal was to evaluate the effects of simulated drift of clomazone e glyphosate applied alone or in a tank mixture over grapevines of Merlot variety. The experiment was set in a randomized blocks design, arranged in a 3x4+1 factorial scheme, with four replications. In factor A, the herbicides clomazone, glyphosate and the clomazone + glyphosate tank mixture was allocated and in B, doses of the same herbicides, representing drift simulations, of: 0, 25, 50, 75 and 100% of recommended doses. In 14, 28, 46 and 100 days after treatment, we evaluated the phytotoxicity of herbicides over grapevines. We determined the characteristics related to the increase of vegetative growth at the time of the experiment set-up and at the end of the experiment (100 DAT). At 10 and 20 DAT we also determined the net assimilation of CO2 on grapevines that were treated with herbicides. The clomazone and the glyphosate applied either alone or in a tank mixture caused phytotoxicity in grapevine crops. The grapevine demonstrated to be sensitive, even to low herbicide doses, thus requiring caution when using pulverization of glyphosate, clomazone or the mixture of clomazone + glyphosate, in areas close to crops.
- Subjects
GRAPE yields; PHYSIOLOGICAL effects of herbicides; CLOMAZONE; GLYPHOSATE; CARBON dioxide
- Publication
Communications in Plant Sciences, 2018, Vol 8, p22
- ISSN
2237-4027
- Publication type
Article
- DOI
10.26814/cps2018004