Nitrogen doses on soybean growth and Asian rust progress in two cultivars

de Ramos, Juliano Perlin; Andriolo, Jerônimo Luiz; Balardin, Ricardo Silveiro; Marques, Leandro Nascimento; Serafini, Pablo Tuzi; Stefanelo, Marlon Tagliapietra

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dc.creator	de Ramos, Juliano Perlin
dc.creator	Andriolo, Jerônimo Luiz
dc.creator	Balardin, Ricardo Silveiro
dc.creator	Marques, Leandro Nascimento
dc.creator	Serafini, Pablo Tuzi
dc.creator	Stefanelo, Marlon Tagliapietra
dc.date	2017-02-23
dc.date.accessioned	2022-03-21T20:07:52Z
dc.date.available	2022-03-21T20:07:52Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1552
dc.identifier	10.14295/cs.v7i4.1552
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77824
dc.description	The main goal of this study was to analyze the range of effects of nitrogen doses on Asian soybean rust (Phakopsora pachyrhizi Sydow) progress over two soybean (Glycine max Merril) cultivars. Two experiments were carried out in greenhouse and in the field, during the 2011/12 and 2012/13 crop years. In the greenhouse, plants were grown in sand in 2011/12 and in a mix of sand and soil in 2012/2013, and supplied with five N doses by dripping fertigation. In the field, the crop was fertilized with six nitrogen doses with broadcast applications. The pathogen was inoculated in all experiments. It was assessed the Area Under Rust Progress Curve (AURPC), defoliation, dry matter, total concentration of N in leaves, number of grains per plant, thousand grain weight and yield. In the greenhouse experiment, nitrogen rates increased the plant growth and the disease progress during the first year. In 2011/12 field assay, a slight decrease of rust progress and a slight increase in yield from 160 to 242 kg ha-1 were recorded. However, under favorable environmental conditions for Asian soybean rust, the increases in grain yield obtained by using high N rates on both cultivars were minor than the damage caused by the disease.	en-US
dc.description	The main goal of this study was to analyze the range of effects of nitrogen doses on Asian soybean rust (Phakopsora pachyrhizi Sydow) progress over two soybean (Glycine max Merril) cultivars. Two experiments were carried out in greenhouse and in the field, during the 2011/12 and 2012/13 crop years. In the greenhouse, plants were grown in sand in 2011/12 and in a mix of sand and soil in 2012/2013, and supplied with five N doses by dripping fertigation. In the field, the crop was fertilized with six nitrogen doses with broadcast applications. The pathogen was inoculated in all experiments. It was assessed the Area Under Rust Progress Curve (AURPC), defoliation, dry matter, total concentration of N in leaves, number of grains per plant, thousand grain weight and yield. In the greenhouse experiment, nitrogen rates increased the plant growth and the disease progress during the first year. In 2011/12 field assay, a slight decrease of rust progress and a slight increase in yield from 160 to 242 kg ha-1 were recorded. However, under favorable environmental conditions for Asian soybean rust, the increases in grain yield obtained by using high N rates on both cultivars were minor than the damage caused by the disease.	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/1552/428
dc.rights	Copyright (c) 2017 Juliano Perlin de Ramos, Jerônimo Luiz Andriolo, Ricardo Silveiro Balardin, Leandro Nascimento Marques, Pablo Tuzi Serafini, Marlon Tagliapietra Stefanelo	en-US
dc.source	Comunicata Scientiae; Vol. 7 No. 4 (2016); 440-449	en-US
dc.source	Comunicata Scientiae; v. 7 n. 4 (2016); 440-449	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	Glycine max	en-US
dc.subject	nutrição mineral	en-US
dc.subject	nitrogênio mineral Phakopsora pachyrhizi	en-US
dc.title	Nitrogen doses on soybean growth and Asian rust progress in two cultivars	en-US
dc.title	Nitrogen doses on soybean growth and Asian rust progress in two cultivars	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion