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Nitrogen availability and glyphosate hormesis on white oat Planta Daninha
R.O. Silva,Diecson; A. Silva,Álvaro A.; D. Novello,Bruna; Rieder,Eduardo; M. Aguiar,Adalin C.; J. Basso,Claudir.
Abstract Background: The effect of low rates of glyphosate has been widely studied in several crops. Low nitrogen stress reduces carbohydrate synthesis and we hypothesize that hormesis from glyphosate occurs at low nitrogen availability. Objective: To evaluate the effects of glyphosate hormesis at different levels of nitrogen on the growth and yield of white oat. Methods: A two-factor factorial (2x7) was conducted in field testing at nitrogen levels (50 and 90 kg ha-1) and low rates of glyphosate rates (0 - 180 g a.e. ha-1). The glyphosate was applied at the second node already formed. The growth and yield were evaluated. Results: Plant height was not affected by the nitrogen levels. A low rate of glyphosate induced a plant height increase up of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avena sativa; Low rate; Herbicide; Growth stimulus; Yield.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100323
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