Response of Common Lambsquarters (<i>Chenopodium album</i>) to Glyphosate as Affected by Growth Stage

Schuster, C.; Shoup, D. E.; Al‐Khatib, Kassim

doi:10.1614/ws-06-130.1

Cited by 39 publications

(45 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although common lambsquarters is considered a summer annual, emergence begins in the early spring and continues throughout the summer, and lateseason emergence is not unusual (Holm et al 1977;Schuster et al 2007). Thus, the ability of a few plants to escape control may lead to the production of thousands of seeds, continued infestations, and reduced crop yields in subsequent years.…”

Section: Competitionmentioning

confidence: 99%

See 1 more Smart Citation

Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

et al. 2008

View full text Add to dashboard Cite

The purpose of this research was to evaluate a common lambsquarters (Chenopodium album) collection from Westmoreland County, Virginia, which exhibited a differential response to glyphosate treatments as compared to most other common lambsquarters.Plants from this site that survived glyphosate applications were collected in both 2002 and 2004. Greenhouse studies were conducted on F1, F2, and F3 progeny from this collection and compared to a wild type collection from Montgomery County, Virginia.Evaluations were conducted on these plants treated with a range of glyphosate rates. number, leaf area, leaf size, shoot weight, and reproductive output. However, significant differences were observed with regard to root weight, root length, and root density. In germination studies, it was determined that the Montgomery source had significantly faster and greater seed germination than the Westmoreland source. The susceptibility of F3 seedlings to glyphosate varied significantly with respect to F2 parent line and glyphosate rate. Mortality of 100% was observed in F3 seedlings from the Montgomery source in response to the 3.36 kg ae/ha glyphosate rate, while no mortality was observed in Westmoreland F3 seedlings in response to this glyphosate rate.Nomenclature: Glyphosate; common lambsquarters, Chenopodium album L. CHEAL; soybean, Glycine max L. Merr.

show abstract

Section: Competitionmentioning

confidence: 99%

“…Schuster et al (2007) have observed that the development of herbicide resistant common lambsquarters limits weed management options, and alternatives are generally less effective or more expensive. (Nandula et al 2005).…”

Section: Herbicide Resistance In Common Lambsquarters Herbicide Resimentioning

confidence: 99%

Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Ahmadi et al (1980) encontraron mayor efecto del glifosato en plantas de 5 y 10 cm de altura, que en las de 15 y 20 cm. Asimismo, Schuster et al (2007) determinaron que las plantas de Chenopodium album L. fueron más afectadas por el glifosato cuando su altura era de 2.5 cm, que cuando medían 7.5 ó 15 cm.…”

Section: Results and Discussion Experiments 1: Glyphosate Dosages And unclassified

“…Ahmadi et al (1980) found a greater effect of glyphosate in plants 5 and 10 cm high, than in 15 and 20 cm. Also, Schuster et al (2007) determined that plants of Chenopodium album L. were most affected by glyphosate when their height was 2.5 cm, than when measuring 7.5 or 15 cm.…”

Section: Results and Discussion Experiments 1: Glyphosate Dosages And mentioning

confidence: 99%

Efecto del volumen y el pH del agua en el control de Ixophorus unisetus (J. Presl.) Schltdl. con glifosato

Esquivel

Valle

2018

Remexca

View full text Add to dashboard Cite

Efecto del volumen y el pH del agua en el control de Ixophorus unisetus (J. Presl.) Schltdl. con glifosato* Effect of volume and pH of water to control AbstractTwo experiments were established to determine the effect of volume and pH of spray water in controlling grass Ixophorus unisetus with various doses of the herbicide glyphosate. The experiment was located in Medellin, Veracruz, Mexico, in a randomized block design with four replications and arrangement of treatments in a split plot. In both experiments, large plots corresponded to three doses of glyphosate (267, 356 and 712 g ha -1 ), while the split plots in experiment 1, corresponded to four volumes of application (133, 217, 294 and 370 L ha -1 ) and on experiment 2 four pH levels (5, 6, 7 and 8). Control of I. unisetus at 7, 15 and 30 days after application (DAA) was evaluated and the dry weight of the aerial parts at 30 DAA were determined. The application of glyphosate at 712 g ha -1 had the highest control of I. unisetus. The effectiveness of the herbicide was greater when applied with a water volume of 217 or 294 L ha -1 or the pH of this varied between 5 and 7. Control of I. unisetus was reduced with a dose of 267 g ha -1 , using a water volume of 370 L ha -1 or when pH of water was 8. IntroducciónEl glifosato [N-(fosfonometil) glicina] es un herbicida del grupo químico de los ácidos fosfónicos que inhibe a la enzima enol-piruvil-shikimato-fosfato sintetasa, lo que resulta en el bloqueo de la síntesis de aminoácidos aromáticos (Alibhai y Stallings, 2001), que conduce eventualmente a la muerte de las plantas. Por ser un herbicida sistémico, no selectivo, y que no deja residuos tóxicos en el suelo (Wibawa et al., 2009), se utiliza extensivamente para el control de malezas anuales y perennes en los sistemas de labranza de conservación, cultivos frutales e industriales, áreas no cultivables, orillas de caminos y vías férreas (Ekboir, 2003;Parreira et al., 2010). Con el desarrollo de cultivos transgénicos resistentes a este herbicida, se ha incrementado su uso en gran medida, pues se utiliza como parte medular del control de malezas (Dill et al., 2008;Green, 2009), por lo que en la actualidad se considera el herbicida que más impacto tiene en la agricultura (Duke y Powless, 2008).La efectividad del glifosato está influenciada por diversos factores; por ejemplo, numerosos estudios indican que al aplicarlo en volúmenes de agua bajos, se obtienen mejores controles de malezas que cuando el volumen es alto (Jordan 1981; Buhler y Burnside, 1983;Ramsdale et al., 2003;Kogan y Alister, 2008). En un estudio realizado en cámara de crecimiento con cebada, O'Sullivan et al. (1981) encontraron que al incrementar los volúmenes de aplicación de 110 a 550 L ha -1 , se redujo la efectividad del glifosato a las dosis de 0.14 y 0.28 kg ha -1 , en comparación con las dosis de 0.56 y 0.84 kg ha -1 . Sin embargo, en el cultivo de caña de azúcar, Rodrigues et al. (2011) encontraron que el volumen asperjado no tuvo efecto en el grado de control de Digitaria insularis (L.) F...

show abstract

“…It is known that plants at the early growth stages are more susceptible to herbicides, due to greater absorption of the herbicide by young and rapidly growing plants than mature ones. Similarly, certain studies reported greater control with glyphosate in common fathen (Chenopodium album) when plants were relatively smaller (Schuster et al 2007). Besides the increasing leaf area, there are also important changes in the cuticle features.…”

Section: Lolium Perennementioning

confidence: 94%

Determination of optimal doses of glyphosate for controlling weeds at several stages in southwestern Buenos Aires province (Argentina)

Bentivegna¹,

Moyano²,

Daddario³

et al. 2018

Journal of Plant Protection Research

View full text Add to dashboard Cite

Efficient weed management is essential for avoiding competition for water, light, and nutrient resources in semiarid zones. Chemical weed control with glyphosate was evaluated on perennial wall-rocket (Diplotaxis tenuifolia), artichoke thistle (Cynara cardunculus), slender wild oat (Avena barbata), and perennial ryegrass (Lolium perenne). Plants at early, middle and advanced vegetative stages were used in this study. Glyphosate potassium salt was applied at rates of 0.0675 (1/16x), 0.135 (1/8x), 0.27 (1/4x), 0.54 (1/2x), 1.08 (x) and 2.16 (2x) kg acid equivalent (ae) ⋅ ha -1 . Glyphosate combined with 2,4-D amine salt was evaluated at rates of 1.08 kg ae ⋅ ha -1 and 0.53 kg active ingredient (ai) ⋅ ha -1 , respectively. The volume of the spray was 100 l ⋅ ha -1 with 86 droplets ⋅ cm -2 and a Volume Median Diameter (VMD) of 421.19 µm. In general, all the tested weeds were controlled with a quarter of the label rate. Three sizes of tested plants were controlled in a similar way at the same glyphosate dose rate. Moreover, the addition of 2,4-D to glyphosate did not produce an increase in the control of broadleaf weeds. The results showed that glyphosate was effective in controlling the tested weed species, including low application rates for all the growth stages in the southwestern Buenos Aires province.

show abstract

Response of Common Lambsquarters (Chenopodium album) to Glyphosate as Affected by Growth Stage

Cited by 39 publications

References 33 publications

Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

Efecto del volumen y el pH del agua en el control de Ixophorus unisetus (J. Presl.) Schltdl. con glifosato

Determination of optimal doses of glyphosate for controlling weeds at several stages in southwestern Buenos Aires province (Argentina)

Contact Info

Product

Resources

About