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| PICCININI,F.; MACHADO,S.L.O.; MARTIN,T.N.; KRUSE,N.D.; BALBINOT,A.; GUARESCHI,A.. |
| ABSTRACT: Weed control using herbicides with the same mechanism of action can encourage the emergence of resistant biotypes or tolerant plants. An example of this is the occurrence of morning-glory (Ipomoea sp.) in soybean crops in southern Brazil. In this sense, the aim of this study was to quantify the losses arising from two species of morning-glory weeding coexisting with soybean crop. A field study was conducted in the 2013/2014 season. The experimental design was a randomized block with four replications, with treatments being distributed in a factorial arrangement (2x2x5), which assessed the effect of competition on two soybean cultivars (TEC6029 and TEC7849) of morning-glory species (I. triloba and I. purpurea) in different population (0, 4, 8, 16... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competition; Ipomoea triloba; Ipomoea purpurea; Glycine max. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100262 |
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| SILVA,K.S.; URBAN,L.J. K.; BALBINOT,A.; GNOCATO,F.S.; KRUSE,N.D.; MARCHESAN,E.; MACHADO,S.L.O.. |
| ABSTRACT The nitric oxide acts on the antioxidant system of plants and can discontinue the damage of herbicides elicitors of oxidative stress that cause the disruption of membranes and leakage of cellular contents. In order to evaluate the protective effect of nitric oxide in electrolytes leakage, leaf segments of the Puita INTA CL rice cultivar were incubated with 0, 5, 50, 500 and 5,000 μM clomazone (360 g a.i. L-1), oxadiazon (250 g a.i. L-1), oxyfluorfen (240 g a.i. L-1) and the formulated mixture of paraquat (200 g a.i. L-1) + diuron (100 g a.i. L-1) to obtain the maximum potential conductivity of 50% (MPC50). Subsequently, leaf segments were pre-treated with 0, 200 and 2,000 μM of sodium nitroprusside (SNP) for four hours and further incubated for 48... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Sodium nitroprusside; Clomazone; Oxadiazon; Oxyfluorfen; Paraquat + diuron. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400777 |
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