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Phytotoxicity and growth of coffee plants as a function of the application of herbicide 2,4-D

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dc.contributor.author Voltolini, Giovani Belutti
dc.contributor.author Castanheira, Dalyse Toledo
dc.contributor.author Silva, Larissa Cocato da
dc.contributor.author Alecrim, Ademilson de Oliveira
dc.contributor.author Rezende, Tiago Teruel
dc.contributor.author Barbosa, João Paulo Rodrigues Alves Delfino
dc.contributor.author Guimarães, Rubens José
dc.date.accessioned 2021-04-27T19:09:51Z
dc.date.available 2021-04-27T19:09:51Z
dc.date.issued 2019-10
dc.identifier.citation VOLTOLINI, G. B. et al. Phytotoxicity and growth of coffee plants as a function of the application of herbicide 2,4-D. Coffee Science, Lavras, v. 14, n. 4, p. 438-445, out./dez. 2019. pt_BR
dc.identifier.issn 1984-3909
dc.identifier.uri http://dx.doi.org/10.25186/cs.v14i4 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12729
dc.description.abstract Weed control in coffee is of great importance for there is a great interference, standing out the competition for water, light and nutrients. Among the control methods, chemical control is highlighted as a function of its efficiency. However, the incorrect application of herbicides may imply the occurrence of drift, resulting in damage to coffee development due to phytotoxicity. In this context, the objective of this study was to evaluate the symptoms and phytotoxicity effects caused by the herbicide 2,4-D drift on the morphological, physiological and anatomical characteristics of coffee seedlings. The experiment was carried out in a greenhouse with ‘Topázio MG1190’ coffee seedlings (Coffea arabica L.), planted in 11-L pots. A randomized block design with four treatments and four replicates was used. The treatments were: 0%; 10%; 25% and 50% of the recommended commercial dose of 2,4-D (2.5 L.ha-1). Each plot consisted of three plants. The evaluations were performed at 74 days after implantation. Morphological, physiological, anatomical and phytotoxicity symptoms were evaluated as a function of the simulated herbicide drift. Coffee seedlings intoxicated by the herbicide 2,4-D presented hyponastic, chlorosis, shriveling and leaf anomalies. In the orthotropic branch, bending was observed in its extension, besides thickening in the collar region; in the plagiotropic branch, cracking was observed. Herbicide drift negatively affects the development of coffee plants. The coffee physiology was affected as a function of herbicide drift, but without damage to the leaf anatomy. pt_BR
dc.format pdf pt_BR
dc.language.iso pt_BR pt_BR
dc.publisher Editora UFLA pt_BR
dc.relation.ispartofseries Coffee Science:v.14,n.4;
dc.rights Open Access pt_BR
dc.subject Coffea arabica pt_BR
dc.subject Chemical control pt_BR
dc.subject Damage pt_BR
dc.subject Drift pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Phytotoxicity and growth of coffee plants as a function of the application of herbicide 2,4-D pt_BR
dc.type Artigo pt_BR

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