Response of imidazolinone‐tolerant and ‐susceptible volunteer oilseed rape (<i>Brassica napus</i> L.) to ALS inhibitors and alternative herbicides

Krato, Christoph; Hartung, Karin; Petersen, Jan

doi:10.1002/ps.3317

Cited by 8 publications

(6 citation statements)

References 35 publications

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“…No tilling reduces weed biomass significantly and therefore reduces biodiversity. Apparition of HT volunteers with time is strongly dependent on the crop management system used (Krato et al 2012) and has not been considered here (see Section 4.1).…”

Section: Gm Crops Marginally Improve Environmental Sustainabilitymentioning

confidence: 99%

Genetically modified crops in Switzerland: implications for agrosystem sustainability evidenced by multi-criteria model

Wohlfender-Bühler

Feusthuber

Wager

et al. 2016

Agron. Sustain. Dev.

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In Switzerland, genetically modified (GM) crops have been banned in 2005 and have never been used in agriculture. The relevance and sustainability of genetically modified crops for agrosystems have been assessed following a mandate from the Swiss Parliament defined by the Federal Act on Agriculture (187d al.1). For that, an ex ante study based on a multi-criteria decision analysis model that summarises literature and the opinion of experts has been done.The impacts of genetically modified crops on both environmental and socio-economical sustainability in Switzerland have been assessed. Here, we review four model crops for Swiss agriculture: maize, sugar beet, potato and apple. Each crop was compared for both conventional and genetically modified farming systems that contain a specific trait, namely insecticide production (Bacillus thuringiensis (Bt)), herbicide tolerance (HT), fungal resistance (FR), or bacterial resistance (BR). Results show that six out of seven scenarios showed a lower socio-economical sustainability for genetically modified compared to the conventional systems, whereas a slight improvement in the environmental component, mostly resources use, was observed in all scenarios. In conclusion, our work indicates that only carefully tailored and designed genetically modified crops would meet the high standard of requirements of Swiss agrosystems. Our model has thus allowed a quick diagnostic on the impact of genetically modified cultivation on sustainability.

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Section: Gm Crops Marginally Improve Environmental Sustainabilitymentioning

confidence: 99%

Genetically modified crops in Switzerland: implications for agrosystem sustainability evidenced by multi-criteria model

Wohlfender-Bühler

Feusthuber

Wager

et al. 2016

Agron. Sustain. Dev.

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“…Imidazolinone tolerance was implemented in the OSR genome by conventional breeding methods due to mutagenesis [10]. Non-CL OSR varieties would perish after an imidazolinone treatment [11].…”

Section: Introductionmentioning

confidence: 99%

“…CL herbicides have high efficacy against cruciferous weeds, which are hard to control with common agents in OSR. Common OSR volunteers can be controlled in CL OSR crops, and thus, the CL-System can contribute to a reduction of an OSR soil seed bank as long as its prevention strategies are working after the establishment of CL OSR in a crop rotation [7,10,11]. Greenhouse trials have shown that when = CL varieties are grown, similar yields are achieved as when non-CL varieties are used.…”

Section: Introductionmentioning

confidence: 99%

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Oilseed Rape Yield Performance in the Clearfield® System under Varying Management Intensities

2021

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Oilseed rape production is under pressure due to a limited availability of herbicides. Therefore, the performance in terms of management intensity (MI) and herbicide strategy (HS) and the involved yield formation was evaluated in a two-year Clearfield® oilseed rape field experiment. Furthermore, weed density and weed composition were also investigated. The variants of MI were standard sowing density (StS; seed rate: 50 seeds m−2, primary tillage: plow, row width: 12 cm), reduced sowing density (RD; seed rate: 25 seeds m−2, primary tillage: plow, row width: 50 cm), and strip-till (ST; seed rate: 25 seeds m−2, primary tillage: strip tillage, row width: 50 cm). The variants of HS were preemergence strategy (PES; application of dimethachlor, napropamide, clomazone in preemergence and application of prapaquizafop in postemergence) and Clearfield® strategy (CLS; application of imazamox, quinmerac in preemergence, no postemergence herbicide application). In the first year of the trial, there were no interactions between the factors in terms of grain yield. Grain yield in StS was 3.85 t and 5.2% significantly lower than in ST, and the value of RD was not significantly different from StS and ST. Grain yield in CLS was 3.7 t and 2.7% lower than in PES. In the second year of the trial, the grain yield in ST CLS was significantly lower, and there were no significant differences between the other variants. Higher weed emergence was observed in CLS RD (2.7 to 4 times higher weed density compared to PES RD) and CLS ST (2.8 to 4.5 times higher weed density compared to PES ST). No significant differences existed between StS PES and StS CLS in both trial years. The Clearfield® system offers significant advantages in the control of cruciferous weeds. Although these did not occur on the trial fields, the Clearfield® system in this study showed to be an alternative to the more common pre-emergence system, especially with regard to the parameter grain yield.

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“…Imidazolinone-resistant canola cultivars were developed from two mutants, called PM1 and PM2, which were obtained by induced mutagenesis of microspores (Krato et al 2012). The PM1 mutant, with a serine to asparagine substitution at codon 653, is resistant to imidazolinones only, and PM2, with a codon 574 modification, from tryptophan to leucine, is resistant to imidazolinones and sulfonylureas (Krato et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Properties of the enzyme acetolactate synthase in herbicide resistant canola

et al. 2018

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reaction rate (V max) was determined, as well as the enzyme's activity in the presence of imazapic and metsulfuron-methyl inhibitors. There was no change in the K m and V max in the hybrid Hyola 571CL in relation to Hyola 61. The hybrid Hyola 555TT presented V max higher than the other hybrids. In the hybrid Hyola 571CL, the activity of ALS was reduced only by the application of metsulfuron-methyl, and the functionality of the enzyme did not change in relation to the other hybrids. The hybrid Hyola 571CL is resistant only to the imidazolinone group herbicide and this resistance does not cause adaptive cost in relation to the other hybrids.

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Response of imidazolinone‐tolerant and ‐susceptible volunteer oilseed rape (Brassica napus L.) to ALS inhibitors and alternative herbicides

Cited by 8 publications

References 35 publications

Genetically modified crops in Switzerland: implications for agrosystem sustainability evidenced by multi-criteria model

Genetically modified crops in Switzerland: implications for agrosystem sustainability evidenced by multi-criteria model

Oilseed Rape Yield Performance in the Clearfield® System under Varying Management Intensities

Properties of the enzyme acetolactate synthase in herbicide resistant canola

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