Selectivity of pre-and post-emergence herbicides to very-early maturing soybean cultivars

Fornazza, Felipe Guilherme Ferreira; Constantin, Jamil; Machado, Fellipe Goulart; Oliveira Jr., Rubem Silvério de; da Silva, Gustavo Delabio; Rios, Fabiano Aparecido

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dc.creator	Fornazza, Felipe Guilherme Ferreira
dc.creator	Constantin, Jamil
dc.creator	Machado, Fellipe Goulart
dc.creator	Oliveira Jr., Rubem Silvério de
dc.creator	da Silva, Gustavo Delabio
dc.creator	Rios, Fabiano Aparecido
dc.date	2019-01-04
dc.date.accessioned	2023-03-30T19:35:11Z
dc.date.available	2023-03-30T19:35:11Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/2755
dc.identifier	10.14295/cs.v9i4.2755
dc.identifier.uri	https://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/246805
dc.description	The combination of pre- and post-emergence herbicides may affect their selectivity to soybean plants, especially to short-cycle cultivars. The objective of this work was to evaluate the selectivity of pre- and post-emergence herbicides to very-early maturing soybean cultivars. Two field experiments were conducted, one in Mandaguaçu, Paraná (E1) and other in Rio Verde, Goiás (E2), Brazil, using a 4×7 factorial arrangement. The treatments consisted of four pre-emergence herbicide managements (S-metolachlor at 1440 g ha-1, diclosulam at 25.2 g ha-1, sulfentrazone at 300 g ha-1, and no herbicide application); and seven post-emergence herbicide managements (lactofen at 120 g ha-1, chlorimuron-ethyl at 12.5 g ha-1, bentazon at 720 g ha-1, lactofen at 120 g ha-1 + chlorimuron-ethyl at 12.5 g ha-1, glyphosate at 900 g a. e. ha-1, two sequential glyphosate applications at 720 g a. e. ha-1 each, and no herbicide application). The early-maturing soybean cultivars evaluated showed sensitivity to the herbicides used. The combined use of pre- and post-emergence herbicides increased the occurrence of injuries in the plants. Diclosulam and sulfentrazone were the least selective pre-emergence herbicides. All herbicide combinations used affected soybean grain yield in E1; lactofen, chlorimuron, and bentazon presented the least selectivity in E2.	en-US
dc.description	The combination of pre- and post-emergence herbicides may affect their selectivity to soybean plants, especially to short-cycle cultivars. The objective of this work was to evaluate the selectivity of pre- and post-emergence herbicides to very-early maturing soybean cultivars. Two field experiments were conducted, one in Mandaguaçu, Paraná (E1) and other in Rio Verde, Goiás (E2), Brazil, using a 4×7 factorial arrangement. The treatments consisted of four pre-emergence herbicide managements (S-metolachlor at 1440 g ha-1, diclosulam at 25.2 g ha-1, sulfentrazone at 300 g ha-1, and no herbicide application); and seven post-emergence herbicide managements (lactofen at 120 g ha-1, chlorimuron-ethyl at 12.5 g ha-1, bentazon at 720 g ha-1, lactofen at 120 g ha-1 + chlorimuron-ethyl at 12.5 g ha-1, glyphosate at 900 g a. e. ha-1, two sequential glyphosate applications at 720 g a. e. ha-1 each, and no herbicide application). The early-maturing soybean cultivars evaluated showed sensitivity to the herbicides used. The combined use of pre- and post-emergence herbicides increased the occurrence of injuries in the plants. Diclosulam and sulfentrazone were the least selective pre-emergence herbicides. All herbicide combinations used affected soybean grain yield in E1; lactofen, chlorimuron, and bentazon presented the least selectivity in E2.	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/2755/602
dc.rights	Copyright (c) 2019 Felipe Guilherme Ferreira Fornazza, Fellipe Goulart Machado, Jamil Constantin, Rubem Silvério de Oliveira Jr., Ricardo Travasso Raimondi, Denis Fernando Biffe	en-US
dc.source	Comunicata Scientiae; Vol. 9 No. 4 (2018); 649-658	en-US
dc.source	Comunicata Scientiae; v. 9 n. 4 (2018); 649-658	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.title	Selectivity of pre-and post-emergence herbicides to very-early maturing soybean cultivars	en-US
dc.title	Selectivity of pre-and post-emergence herbicides to very-early maturing soybean cultivars	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion