Rates of Chlorimuron Applied in Glyphosate-Tolerant and Sulfonylurea-Tolerant Soybean

被引：3

作者：

Albrecht L.P. ^{[1
]}

Albrecht A.J.P. ^{[1
]}

Silva A.F.M. ^{[2
]}

Krenchinski F.H. ^{[3
]}

Placido H.F. ^{[2
]}

Filho R.V. ^{[2
]}

机构：

[1] Department of Agronomic Sciences, Federal University of Paraná (UFPR), Palotina Campus, Palotina, PR

[2] Department of Crop Science, University of São Paulo (USP), “Luiz de Queiroz” College of Agriculture (ESALQ), Piracicaba, SP

[3] Faculty of Agronomic Sciences, São Paulo State University (UNESP), Botucatu, SP

来源：

Journal of Crop Science and Biotechnology | 2018年 / 21卷 / 3期

关键词：

agronomic performance; ALS inhibitors; Glycine max (L.) Merr; Herbicide-tolerant crops; selectivity;

D O I：

10.1007/s12892-018-0029-0

中图分类号：

学科分类号：

摘要：

Susceptibility to chlorimuron varies according to soybean genotype. STS® (sulfonylurea-tolerant soybean) presents a high tolerance to some sulfonylureas; this feature is determined by semi-dominants alleles, Als1 and Als2. Experiments were conducted in the field for four seasons with two cultivars for season to evaluate the selectivity of chlorimuron rates in post-emergency (V4) of glyphosate-tolerant and sulfonylurea-tolerant soybean. Data analysis made it possible to infer that there was no significant effect on the productivity of the cultivars when they received application in post-emergency, of chlorimuron at the doses used (0, 15, 30, 45, 60, 75, and 90 g ai ha-1). The maximum recommended rate for non-STS cultivars of chlorimuron is 20 g ai ha-1, or 4.5 times less than the maximum rate employed in this study. The soybean cultivars CD 250 RR/STS, CD 236 RR/STS, CD 2630 RR/STS, and BMX Turbo RR/STS were tolerant to the application, in post-emergency (V4) of the herbicide chlorimuron, until the rate of 90 g ai ha-1. © 2018, Korean Society of Crop Science and Springer Nature B.V.

引用

页码：211 / 216

页数：5

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