Basis of Selectivity of the Herbicide Rimsulfuron in Maize

Koeppe, Mary K.; Hirata, Cecilia Mucha; Brown, H. M.; Kenyon, William H.; O’Keefe, Daniel P.; Lau, Sze-Mei Cindy; Zimmerman, William T.; Green, J.M.

doi:10.1006/pest.1999.2470

Cited by 43 publications

(38 citation statements)

References 27 publications

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“…Also, the results of this work support the hypothesis that oat crop tolerance to iodosulfuron-methyl is temperature- (Koeppe et al, 2000). Also, the sulfonylurea sulfosulfuron injury to wheat plants was higher at 21/7 o C (day/night) than at 10/5 o C (Geier et al, 1999), in part, because at lower temperatures plants have reduced leaf area, thus reduced absorption and translocation of the herbicide (Olson et al, 2000).…”

Section: Resultssupporting

confidence: 77%

“…Elevated temperature, within biological limits, increases herbicide absorption and efficacy by reducing cuticle wax viscosity and by increasing the chemical diffusion rate through the leaf cuticle (Fuentes and Leroux, 2002). However, elevated temperature increases the tolerance of crops to herbicide because it increases its detoxification rate by plants ( McCullough and Hart, 2006 (Koeppe et al, 2000). Therefore, it is necessary to develop a reliable method to evaluate the effect of temperature on herbicide selectivity to crops.…”

Section: Introductionmentioning

confidence: 99%

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An Innovative Method to Evaluate the Impact of Temperature on Iodosulfuron-Methyl Selectivity to Oat Crop

et al. 2017

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-Temperature affects the selectivity of post-emergence herbicides in a complex manner. The objective of this work was to develop a method to estimate the impact of temperature on herbicide selectivity using the white oat (Avena sativa) crop and iodosulfuron-methyl as study models. Greenhouse/growth-chamber experiments were conducted using a completely randomized design with the treatments arranged as a bi-factorial, with three repetitions. The first factor consisted of six temperatures (10, 15, 20, 24, 28 and ). For each temperature, regression curves were fitted to the dose-response data. The rate of herbicide efficacy was computed through the method first proposed in this study. The crop tolerance to the herbicide increased proportionally to the temperature, suggesting the product detoxification is improving crop selectivity. In practical terms, it is predicted that white oat crop tolerance to iodosulfuron-methyl increases in regions of the world with high temperatures. The method developed here also can be used to understand the effect of temperature on herbicide efficacy on weeds.Keywords: Avena sativa, crop tolerance, environmental factors, herbicide detoxification. (10, 15, 20, 24, 28 de iodosulfuron (0; 0,2; 0,4; 0,8; 1,2; 5; e 20 g ha -1 RESUMO -A temperatura impacta a seletividade de herbicidas em pós-emergência de forma complexa. O objetivo deste trabalho foi desenvolver um método para estimar o impacto da temperatura na seletividade de herbicida, utilizando aveia cultivada (Avena sativa) e iodosulfuron-methyl como modelos de estudo. Os experimentos foram conduzidos em casa de vegetação/câmaras de crescimento, utilizando-se delineamento inteiramente casualizado, com os tratamentos arranjados como bifatorial, com três repetições. O primeiro fator consistiu de seis temperaturas

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Section: Resultssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

An Innovative Method to Evaluate the Impact of Temperature on Iodosulfuron-Methyl Selectivity to Oat Crop

et al. 2017

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“…Also, Auskalniene and Auskalnis (2003) observed that rimsulfuron was effective against has Echinochloa crus-galli. Koeppe et al (2000) have also reported that maize metabolized rimsulfuron rapidly, with a half-life of <1h, while the sensitive species Sorghum halepense (L.) Pers., Amaranthus retroflexus L. and Digitaria sanguinalis (L.) Scop. metablolized rimsulfuron slowly, with half-lives of 38, >48 and 27 h, respectively.…”

Section: Weed Floramentioning

confidence: 97%

“…Similar to other sulfunyloureas, the site of action of rimsulfuron is acetolate synthase (ALS), an enzyme in branched-chain amino acid biosynthesis (Koeppe et al, 2000). Data obtained by other researchers clearly demonstrated the beneficial effects of rimsulfuron application on weed control and yield of maize (Auskalniene and Auskalnis, 2003;Chikoye et al, 2007;Sikkema et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Tillage System and Rimsulfuron Application on Weed Flora, Arbuscular Mycorrhizal (AM) Root Colonization and Yield of Maize (Zea mays L.)

Bilalis

Triantafyllidis

Karkanis

et al. 2012

Not Bot Hort Agrobot Cluj

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Field experiments were conducted to determine the effects of tillage system and rimsulfuron application on weed flora and growth of maize (Zea mays L. Mitic F1) at a site with no history of pesticide use for the last 5 years. A randomized complete block design was employed with three replicates per treatment (conventional tillage without rimsulfuron application (control), no-tillage with rimsulfuron application (NT+Rim) and conventional tillage with rimsulfuron application (CT+Rim)). The lowest leaf area index, dry weight and yield of maize were recorded in NT+Rim plots. In addition, the highest soil bulk density was determined in NT+Rim plots. Moreover, the rimsulfuron application resulted in significant reduction in the root growth and arbuscular mycorrhizal (AM) colonization. The lowest root biomass, root length density, root surface and AM root colonization was found in CT+Rim plots. The lowest weed number and biomass was also observed at CT+Rim plots. Sustainability yield index (SYI) shown that the maize crop is more stable under conventional tillage compared with no-tillage. Our results indicated that root growth was reduced significant by rimsulfuron application but statistically significant lower maize yield was obtained in no-tillage system.

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“…Resposta diferencial na absorção, na translocação e no metabolismo do herbicida amicarbazone, por exemplo, com dependência da temperatura do ar, foi observada em Poa annua, sendo que altas temperaturas reduzem a absorção e a translocação, mas aumentam o metabolismo do herbicida (YU et al 2015). Efeitos equivalentes foram observados para seletividade de rimsulfuron em milho (KOEPPE et al 2000) e bispyribac-sodium em Poa annua (MCCULLOUGH et al 2009). Porém, maior absorção de herbicidas pode ser verificada em temperaturas mais altas (FLETCHER et al 2007, MCCULLOUGH et al 2010, 2013.…”

Section: Relatam Que Os Herbicidas Inibidores Deunclassified

A eficácia do controle químico varia com o genótipo de azevém e a temperatura do ar no momento da aplicação

Pereira

Carvalho

Magro³

2017

Rev. Ciên. Agrovet.

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Basis of Selectivity of the Herbicide Rimsulfuron in Maize

Cited by 43 publications

References 27 publications

An Innovative Method to Evaluate the Impact of Temperature on Iodosulfuron-Methyl Selectivity to Oat Crop

An Innovative Method to Evaluate the Impact of Temperature on Iodosulfuron-Methyl Selectivity to Oat Crop

The Effect of Tillage System and Rimsulfuron Application on Weed Flora, Arbuscular Mycorrhizal (AM) Root Colonization and Yield of Maize (Zea mays L.)

A eficácia do controle químico varia com o genótipo de azevém e a temperatura do ar no momento da aplicação

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