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Rates of Nicosulfuron Applied in Glyphosate-Tolerant and Sulfonylurea-Tolerant Soybean Planta Daninha
SILVA,A.F.M.; ALBRECHT,A.J.P.; SILVA,G.S.; KASHIVAQUI,E.S.F.; ALBRECHT,L.P.; VICTORIA FILHO,R..
ABSTRACT: STS cultivars tolerate up to four times higher rates of chlorimuron than those recommended for non-tolerant cultivars, without significant damage. However, few studies position the selectivity of nicosulfuron in STS cultivars. The aim of this study was to assess the selectivity of rates of the herbicide nicosulfuron applied in the post-emergence (V4) of RR/STS soybean. The experiments were conducted in the 2015/16 and 2016/17 seasons in Piracicaba, SP. In the 2016/17 season, the experiment was also conducted in Palotina, PR. Treatments consisted of six rates of the herbicide nicosulfuron (0, 50, 100, 150, 200, and 250 g a.i. ha-1). The experimental design was a randomized block design with four replications. The symptoms of injury were assessed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbicide-tolerant crops; ALS inhibitors; Agronomic performance; Selectivity; Glycine max (L.) Merrill.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100209
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SELECTIVITY OF METRIBUZIN IN POSTEMERGENCE OF CULTURE OF CARROT Planta Daninha
CARNEIRO,G.D.O. PESSOA; SILVA,G.S.; BARBOSA,A.R.; SILVA,D.V.; REIS,M.R..
ABSTRACT The initial slow growth and short stature of carrot can allow that weeds settle in crop areas, requiring the management of these plants for productivity not to decrease. Nevertheless, weeds control has been difficult because there are few herbicides available for weeds control in postemergence of carrots. Two experiments in the field were carried out to evaluate selectivity of metribuzin applied in postemergence of carrots. A experimental randomized block design was utilized with four repetitions. Treatments consisted of metribuzin doses (0, 144, 288, 432, 576, 720, 960 and 1,200 g ha-1), applied in postemergence of carrots of the Nantes variety. Roots productivity was evaluated and percentage of commercial roots and no-commercial roots was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Daucus carota; Chemical control; Herbicide.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100240
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