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| MACIEL,C.D.G.; LUSTOSA,S.B.C.; HELVIG,E.O.; COSTA,A.G.F.; RIBEIRO,R.B.; MATIAS,J.P.. |
| ABSTRACT: Castorbean presents high sensitivity to competition; therefore, it is necessary to develop alternatives for the weed management, mainly for the chemical control of eudicotyledons species. The goal of this work was to evaluate the selectivity of chlorimuron-ethyl to castorbean crops in different development stages. Four experiments differentiated by the genetic material were conducted: Lyra, Íris and Savana hybrids and AL Guarany 2002 cultivar. The treatments corresponded to the application conditions of chlorimuron-ethyl [sample control with no application, doses of 15 e 20 g a.i. ha-1 with the formulations Classic™ and Clorimuron Master Nortox™] in two phenological crop stages (4 to 5 and 7 to 8 true leaf stages). The experimental design was in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intoxication; Formulation; Dose; Ricinus communis L. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100276 |
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| MACIEL,C.D.G.; OLIVEIRA,C.N.M.; SILVA,A.A.P.; KARPINSKI,R.A.K.; HELVIG,E.O.; MATIAS,J.P.. |
| ABSTRACT Lawn with grass classified as Axonopus compressus is very common in Brazil Southern region, where it normally presents an adequate low temperature tolerance and a high diversity of weed infestation. This work has aimed to conduct a phytosociological survey of weeds in lawn consisting of Axonopus compressus from CEDETEG/UNICENTRO University campus located in the Brazilian municipality of Guarapuava, in the state of Paraná, in different periods of 2013. One hundred eighty 0.50 x 0.50 m samples were collected in four months, from which parameters frequency, density, abundance, relative frequency, relative density, relative abundance and importance value index were calculated. In general, 24, 7, 17 and 14 weed species were identified, distributed in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Axonopus compressus; Lawn; Identification. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400691 |
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