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| Registros recuperados: 14 | |
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| Wandscheer,A.C.D.; Rizzardi,M.A.; Reichert,M.. |
| Competition between plants is one of the main interferences that occurs in agricultural systems and accounts for significant crop yield reductions. The aim of this study was to assess the competitive ability of corn in coexistence with the weed species Eleusine indica. The experiments were conducted in a greenhouse, in the growing season 2010/2011, and were arranged in a completely randomized design with four replications. The experimental units consisted of plastic pots with a volumetric capacity of 8 L. Treatments were arranged in a replacement series with five proportions of corn plants and weed: 100:0, 75:25, 50:50, 25:75, and 0:100, respectively, with a constant population of eight plants per pot, at the end of each treatment. The competitiveness... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competition; Weed; Eleusine indica; Zea mays. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000200005 |
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| Wandscheer,Alana Cristina Dorneles; Rizzardi,Mauro Antônio; Reichert,Muriel; Gaviraghi,Fernando. |
| A competição é uma interferência negativa, na qual indivíduos competem por recursos do meio. Objetivou-se avaliar a competitividade do capim-pé-de-galinha com soja. O experimento foi realizado em casa-de-vegetação, em delineamento inteiramente casualizado e quatro repetições. Os tratamentos foram cinco proporções da cultura e da espécie daninha, respectivamente, 8:0, 6:2, 4:4, 2:6 e 0:8, que correspondeu a 100, 75, 50, 25 e 0% de plantas de soja, e o inverso para o capim-pé-de-galinha, com população final constante de oito plantas vaso-1 (8 L), correspondendo a aproximadamente 250 plantas m-2. A análise da competitividade foi realizada por meio de diagramas aplicados a experimentos substitutivos e índices de competitividade. A soja apresentou... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Eleusine indica; Competição; Série de substituição. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001200001 |
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| Barroso,A.L.L.; Dan,H.A.; Procópio,S.O.; Toledo,R.E.B.; Sandaniel,C.R.; Braz,G.B.P.; Cruvinel,K.L.. |
| Objetivou-se com este trabalho avaliar a eficácia de herbicidas inibidores da ACCase, aplicados isoladamente ou em associações, no controle das espécies de plantas daninhas pertencentes à família das gramíneas Brachiaria decumbens, Digitaria ciliaris, Eleusine indica, Brachiaria plantaginea e Cenchrus echinatus, na cultura da soja. O experimento foi conduzido em campo, em delineamento de blocos ao acaso com quatro repetições. Os tratamentos avaliados foram: clethodim (84 g ha-1), clethodim + quizalofop-p-ethyl (48 + 40 g ha-1), [clethodim + fenoxaprop-p-ethyl] (50 + 50 g ha-1), sethoxydim (230 g ha-1), tepraloxydim (100 g ha-1), fluazifop-p-butyl (125 g ha-1), haloxyfop-methyl (60 g ha-1) e testemunha sem herbicida. A convivência das plantas de soja com as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria decumbens; Digitaria ciliaris; Eleusine indica; Brachiaria plantaginea; Cenchrus echinatus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000100018 |
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| SCHERER,M.B.; GÖERGEN,A.B.; PEDROLLO,N.T.; RUBERT,J.; DORNELLES,S.H.B.; LOPES,S.J.. |
| ABSTRACT: Eleusine indica (L.) Gaertn. (goosegrass) is a grass species that has global prominence as a weed in areas typical of the soybean crop. However, its dispersion in recent years has been reported expressively for areas of poorly drained soil, in which irrigated rice is cultivated (lowlands). Little is known on its behavior and biology in this different ecosystem. This study aimed to evaluate if Eleusine indica can survive and withstand flooding. The experimental design was a completely randomized (two-way), in which two E. indica biotypes, one from the uplands (without flooding) and the other from the lowlands (with flooding), were submitted to three soil water conditions: 50 and 100% water retention capacity and soil under water depth.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adaptation; Eleusine indica; Oryza sativa; Invasiveness.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100190 |
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| TAKANO,H.K.; OLIVEIRA JR.,R.S.; CONSTANTIN,J.; BRAZ,G.B.P.; GHENO,E.A.. |
| ABSTRACT Several cases of herbicide resistance in goosegrass have been confirmed worldwide. Reports of control failures after glyphosate application have been observed, especially in the Midwest region of Paraná State. The objective of this study was to evaluate the existence of goosegrass populations resistant to glyphosate. For this, 25 populations collected in two consecutive seasons (2013/2014 and 2014/2015) were sown and grown in greenhouse. Glyphosate dose-response curve experiments were performed using doses of 0, 60, 120, 240, 480, 960, 1,920, 3,840, 7,680 and 15,360 g a.e. ha-1. The application stages were from two to three tillers (E1) for the populations of 2013/2014 and E1 and five to six tillers (E2) for the populations of 2014/2015.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eleusine indica; Dose-response; Application timming; Resistance factor. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100217 |
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| TAKANO,H.K.; OLIVEIRA JR,R.S.; CONSTANTIN,J.; BRAZ,G.B.P.; PADOVESE,J.C.. |
| ABSTRACT E. indica is one of the most problematic weeds in the world because it is present in almost every continent, and there are reports of multiple resistance to herbicides by some biotypes. The objective of this paper was to analyze the growth, the development and the production of this plant's seeds, in order to generate information about its biology that can be useful for management. The experiment was carried out in a greenhouse from May to September 2015. Sixteen samples were taken during the development cycle of the plant: 3, 10, 17, 24, 31, 38, 45, 52, 59, 66, 73, 80, 87, 94, 101 and 108 days after emergence (DAE). The response variables were based on a leaf area and dry matter of each one of the parts of the plant and the number of seeds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eleusine indica; Relative growth; Biomass allocation; Weed biology. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200249 |
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| Rizzardi,M.A.; Wandscheer,A.C.D.. |
| The natural infestations are composed of numerous species that compete for environmental resources such as water, light, nutrients and space. The objective of this study was to evaluate the interference of mixed infestations Sorghum sudanense (sudangrass) and Eleusine indica (goosegrass) in the presence of soybean and corn. The experimental design was completely randomized with four replications and the experimental units consisted of plastic pots with a volume capacity of 8 L. The treatments were associations of plants S. sudanense and E. indica in the proportions 8:0, 6:2, 4:4,2:6 and 0:8, respectively, corresponding to 100, 75, 50, 25 and 0% S. sudanense and the reverse for E. indica. In all treatments remained constant four soybean or corn plants per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competition; Sorghum sudanense; Eleusine indica; Competitive hability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100003 |
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| Ulguim,André da Rosa; Vargas,Leandro; Agostinetto,Dirceu; Magro,Taísa Dal; Westendorff,Nixon da Rosa; Holz,Marcelo Timm. |
| O objetivo deste trabalho foi avaliar a resistência de capim pé-de-galinha (Eleusine indica) ao glifosato, em lavouras de soja transgênica; avaliar o efeito de aplicações de glifosato em diferentes estádios de desenvolvimento; identificar práticas agronômicas associadas à seleção de biótipos resistentes; e avaliar a eficiência dos herbicidas cletodim, fluazifope-P-butílico, clomazona, glufosinato de amônio e glifosato nas plantas resistentes. Plantas escapes ao tratamento com glifosato foram coletadas em 24 propriedades, no Rio Grande do Sul. As plantas foram cultivadas em casa de vegetação, tendo-se avaliado a sua resistência ao glifosato. Os acessos resistentes foram selecionados e avaliados quanto ao efeito da aplicação do glifosato em diferentes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eleusine indica; Glycine max; Dosagem; Eficiência de controle; Estádio fenológico; Resistência ao glifosato; Roundup ready. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000100003 |
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| SILVA, A. F. da; KARAM, D.; VARGAS, L.; ADEGAS, F. S.; GAZZIERO, D. L. P.; IKEDA, F. S.; CAVALIERI, S. D.; COSTA, A. G. F.; PERINA, F. J.. |
| O monitoramento da dispersão de plantas daninhas resistentes a herbicidas é prática importante para elaboração de estratégias de manejo mais efetivas. O objetivo deste trabalho é avaliar a dispersão destas plantas no território nacional. O trabalho foi conduzido durante duas safras (2018/2019 e 2019/2020). Foram realizadas coletas e georreferenciamento de sementes de biótipos de buva (Conyza spp), capim-amargoso (Digitaria insularis), capim-pé-de-galinha (Eleusine indica) e azevém (Lolium perene spp multiflorum). As sementes foram identificadas, armazenadas e posteriormente levadas para casa de vegetação para a realização de testes para verificação de resistência ao glifosato. A variável analisada foi o controle visual aos 28 dias após a aplicação dos... |
| Tipo: Folhetos |
Palavras-chave: Conyza spp; Digitaria insularis; Lollium perene spp multiflorum; Erva Daninha; Dispersão; Resistência a Produtos Químicos; Eleusine indica. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136521 |
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| Fialho, Cíntia Maria Teixeira; Silva, Gustavo Soares da; Faustino, Laís Araújo; Carvalho, Felipe Paolinelli de; Costa, Mauricio Dutra; Silva, Antonio Alberto da. |
| The purpose of this study was to evaluate the effects of mycorrhizal association on the interference of Bidens pilosa, Urochloa decumbens and Eleusine indica on soybean culture in two conditions: a) plants competing without contact with roots of another species; b) with contact between roots. At 60 days after planting, growth, nutrient accumulation and mycorrhizal colonization of soybean and weeds were evaluated. The contact between roots of soybean plant and weed species increased the negative interference effects for both species, with less growth and nutrient accumulation. With the individualization of roots, higher competition occurred for soil resources up to 60 days of coexistence between species. In competition with soybean, Bidens pilosa and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Microbiologia agrícola; Matologia Bidens pilosa; Urochloa decumbens (Syn. Urochloa decumbens); Eleusine indica; Arbuscular mycorrhiza fungi Matologia. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27230 |
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| Registros recuperados: 14 | |
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