Registro fonte: Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron

Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron

The presence of weeds decreases the crop yield. Among the alternatives to reduce the crop yield loss, it can be included to increase the competitive ability of the crop and the chemical control of the weeds. A research program was developed in the course of Agronomy at Federal Technological Universi...

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Autor principal:	Pagnoncelli Junior, Fortunato de Bortoli
Formato:	Dissertação
Idioma:	Português
Publicado em:	Universidade Tecnológica Federal do Paraná 2016
Assuntos:	Feijão - Cultivo Grãos - Rendimento Ervas daninhas - Controle Plantas - Efeito dos herbicidas Beans - Planting Grain - Yields Weeds - Control Plants - Effect of herbicides on CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
Acesso em linha:	http://repositorio.utfpr.edu.br/jspui/handle/1/1625
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spelling	riut-1-16252016-08-27T06:00:44Z Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron Competitive ability of the common bean crop and its tolerance to the herbicide Ethoxysulfuron Pagnoncelli Junior, Fortunato de Bortoli Vidal, Ribas Antonio http://lattes.cnpq.br/3680929576088780 Trezzi, Michelangelo Muzell http://lattes.cnpq.br/0941443578569780 Trezzi, Michelangelo Muzell Carvalho, Leonardo Bianco de Oliveira, Marisa de Cacia Vidal, Ribas Antonio Feijão - Cultivo Grãos - Rendimento Ervas daninhas - Controle Plantas - Efeito dos herbicidas Beans - Planting Grain - Yields Weeds - Control Plants - Effect of herbicides on CNPQ::CIENCIAS AGRARIAS::AGRONOMIA The presence of weeds decreases the crop yield. Among the alternatives to reduce the crop yield loss, it can be included to increase the competitive ability of the crop and the chemical control of the weeds. A research program was developed in the course of Agronomy at Federal Technological University at Paraná, Campus Pato Branco - PR, during the years 2015/16, with the objectives evaluating if gibberellin inhibitors increase the competitive ability of bean plants, making them insensitive to the initialism, extending the period prior to weed-crop interference. Evaluate the tolerance of common bean plants to the herbicide ethoxysulfuron and investigate the existence of relationship between the plant mass and the level of tolerance of the plants to the herbicide. Evaluate the effect of increasing doses of ethoxysulfuron on morphological characteristics, yield components and grain yield of the bean cultivars IPR Tangará and IPR Andorinha. Evaluate the effect of increasing doses of ethoxysulfuron on the development of IAC Imperador and the community of weeds present in the area. Elucidate the mechanism that confers tolerance to bean plants to the herbicide ethoxysulfuron. The results indicate that gibberellin inhibitors were not effective in increasing periods of weed-crop coexistence. Trinexapac-ethyl increased 20% the grain yield of bean plants. It was observed high variability as the response of bean cultivars to the herbicide ethoxysulfuron, however, despite high doses (200 g ha-1), it was not observed death of the plants. The field results indicate that when the ethoxysulfuron dose is 83.2 g ha-1, the reduction in grain yield can reach 40% with the cultivar IPR Tangará and 30% in the cultivar IPR Andorinha. However, respectively for each cultivar cited, ethoxysulfuron at 17 and 12 g ha-1 are enough to reduce 10% of grain yield. Evaluating the control of weeds within the bean crop cultivar IAC Imperador with the herbicide ethoxysulfuron, it was observed that doses at 20 g ha-1 are enough to control soybean and Ipomoea spp. plants. But, due to the level of plant injury, the crop grain yield increase was not sufficient to match the one observed on the weed-free untreated control. The mechanism of tolerance of bean plants to ethoxysulfuron appears to be the herbicide degradation. CAPES A presença de plantas daninhas afeta o desenvolvimento e o rendimento de plantas cultivadas, depreciando a qualidade final do produto. Dentre as alternativas práticas que se destacam para a redução da perda de rendimento, estão o incremento da habilidade competitiva da cultura e o manejo químico das plantas daninhas em meio a estas. Um programa de pesquisas foi desenvolvido no curso de Agronomia da Universidade Tecnológica Federal do Paraná, Câmpus Pato Branco - PR, durante os anos de 2015/16, com os objetivos de: avaliar se o uso de inibidores da síntese de giberelina incrementam a habilidade competitiva de plantas de feijão, tornandoas insensíveis aos efeitos do inicialismo, ampliando o período anterior a interferência. Avaliar a tolerância de plantas de feijão comum ao herbicida ethoxysulfuron e, verificar se ocorre relação entre a massa da parte aérea seca da cultura com o nível de tolerância das plantas ao herbicida. Avaliar o efeito de doses crescentes de ethoxysulfuron sobre características morfológicas e nos componentes do rendimento de grãos das cultivares de feijão IPR Tangará e IPR Andorinha. Avaliar o efeito de crescentes doses de ethoxysulfuron sobre o desenvolvimento da cultivar IAC Imperador e sobre a comunidade de infestantes presentes na área. Elucidar o mecanismo que confere a tolerância de plantas de feijão ao herbicida ethoxysulfuron. Inibidores de giberelina não foram eficientes em incrementar os períodos de convivência entre plantas daninhas e o feijoeiro. Trinexapac-ethyl incrementou 20% no rendimento de grãos das plantas de feijão. Foi observada grande variabilidade de resposta das cultivares de feijão ao herbicida ethoxysulfuron, contudo, apesar de doses elevadas (200 g ha-1) não foi constatada a morte de plantas. Em campo, os resultados indicam que quando a dose de ethoxysulfuron é de 83,2 g ha-1, a redução no rendimento de grãos pode chegar a 40% para plantas da cultivar IPR Tangará e a 30% da cultivar IPR Andorinha. Contudo, para cada cultivar citada, ethoxysulfuron nas doses de 17 e 12 g ha-1, reduzem 10% do rendimento de grãos. Avaliando o controle de plantas daninhas na cultura do feijão cultivar IAC Imperador com o herbicida ethoxysulfuron, foi observado que doses próximas a 20 g ha-1 são suficientes para controlar plantas de soja e Ipomoea spp., contudo, devido ao nível de fitotoxidade o incremento de rendimento de grãos não foi suficiente para alcançar o da testemunha livre de infestantes e sem herbicida. Os ensaios avaliando o mecanismo de tolerância das plantas de feijão ao ethoxysulfuron sugerem que este ocorre devido a degradação da molécula do herbicida. 2016-08-26T18:13:17Z 2016-08-26T18:13:17Z 2016-02-25 masterThesis PAGNONCELLI JUNIOR, Fortunato de Bortoli. Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron. 2016. 183 f. Dissertação (Mestrado em Agronomia) - Universidade Tecnológica Federal do Paraná, Pato Branco, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/1625 por openAccess application/pdf Universidade Tecnológica Federal do Paraná Pato Branco Brasil Programa de Pós-Graduação em Agronomia UTFPR
institution	Universidade Tecnológica Federal do Paraná
collection	RIUT
language	Português
topic	Feijão - Cultivo Grãos - Rendimento Ervas daninhas - Controle Plantas - Efeito dos herbicidas Beans - Planting Grain - Yields Weeds - Control Plants - Effect of herbicides on CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
spellingShingle	Feijão - Cultivo Grãos - Rendimento Ervas daninhas - Controle Plantas - Efeito dos herbicidas Beans - Planting Grain - Yields Weeds - Control Plants - Effect of herbicides on CNPQ::CIENCIAS AGRARIAS::AGRONOMIA Pagnoncelli Junior, Fortunato de Bortoli Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
description	The presence of weeds decreases the crop yield. Among the alternatives to reduce the crop yield loss, it can be included to increase the competitive ability of the crop and the chemical control of the weeds. A research program was developed in the course of Agronomy at Federal Technological University at Paraná, Campus Pato Branco - PR, during the years 2015/16, with the objectives evaluating if gibberellin inhibitors increase the competitive ability of bean plants, making them insensitive to the initialism, extending the period prior to weed-crop interference. Evaluate the tolerance of common bean plants to the herbicide ethoxysulfuron and investigate the existence of relationship between the plant mass and the level of tolerance of the plants to the herbicide. Evaluate the effect of increasing doses of ethoxysulfuron on morphological characteristics, yield components and grain yield of the bean cultivars IPR Tangará and IPR Andorinha. Evaluate the effect of increasing doses of ethoxysulfuron on the development of IAC Imperador and the community of weeds present in the area. Elucidate the mechanism that confers tolerance to bean plants to the herbicide ethoxysulfuron. The results indicate that gibberellin inhibitors were not effective in increasing periods of weed-crop coexistence. Trinexapac-ethyl increased 20% the grain yield of bean plants. It was observed high variability as the response of bean cultivars to the herbicide ethoxysulfuron, however, despite high doses (200 g ha-1), it was not observed death of the plants. The field results indicate that when the ethoxysulfuron dose is 83.2 g ha-1, the reduction in grain yield can reach 40% with the cultivar IPR Tangará and 30% in the cultivar IPR Andorinha. However, respectively for each cultivar cited, ethoxysulfuron at 17 and 12 g ha-1 are enough to reduce 10% of grain yield. Evaluating the control of weeds within the bean crop cultivar IAC Imperador with the herbicide ethoxysulfuron, it was observed that doses at 20 g ha-1 are enough to control soybean and Ipomoea spp. plants. But, due to the level of plant injury, the crop grain yield increase was not sufficient to match the one observed on the weed-free untreated control. The mechanism of tolerance of bean plants to ethoxysulfuron appears to be the herbicide degradation.
format	Dissertação
author	Pagnoncelli Junior, Fortunato de Bortoli
author_sort	Pagnoncelli Junior, Fortunato de Bortoli
title	Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
title_short	Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
title_full	Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
title_fullStr	Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
title_full_unstemmed	Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron
title_sort	habilidade competitiva do feijoeiro e sua tolerância ao herbicida ethoxysulfuron
publisher	Universidade Tecnológica Federal do Paraná
publishDate	2016
citation	PAGNONCELLI JUNIOR, Fortunato de Bortoli. Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron. 2016. 183 f. Dissertação (Mestrado em Agronomia) - Universidade Tecnológica Federal do Paraná, Pato Branco, 2016.
url	http://repositorio.utfpr.edu.br/jspui/handle/1/1625
_version_	1805320890012925952
score	10,814766

Habilidade competitiva do feijoeiro e sua tolerância ao herbicida Ethoxysulfuron

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