Effects of Growth Stage on Translocation of Glyphosate in Quack Grass

Rioux, R.; Bandeen, J. D.

doi:10.4141/cjps74-060

Cited by 37 publications

(31 citation statements)

References 2 publications

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“…Herbicide efficacy is affected by the many complex interactions involving environmental conditions (weather and soil, both before and after application) (Hallgren, 1989; Caseley, 1990; Kudsk & Kristensen, 1992; Minkey & Moore, 1996, 1998; Lundkvist, 1997) and plant factors (species, stage of development, competitive ability of the crop, etc.) (Rioux et al ., 1974; Lemerle & Verbeek, 1995). Particular variables of importance include soil moisture stress (Boydston, 1990; Dastgheib et al ., 1990; Dickson et al ., 1990; Lemerle & Verbeek, 1995), nitrogen deficiency (Dickson et al ., 1990), temperature, light, wind, humidity and rainfall (Muzik, 1975; Doran & Andersen, 1976; Coupland, 1983, 1984; Merritt, 1984; Nalewaja & Woznica, 1985; Jensen & Kudsk, 1988; Devine, 1989; Caseley, 1990; Wicks et al ., 1993; McMullan, 1994; Madafiglio et al ., 2000).…”

Section: Introductionmentioning

confidence: 99%

Determination of environment‐specific dose–response relationships for clodinafop‐propargyl on Avena spp.

et al. 2001

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A range of plant and environmental variables is known to influence the efficacy of herbicides. This paper explores whether environmental factors influencing efficacy of a herbicide can be quantified by analysing a set of industry data involving 59 experiments conducted throughout Australia in the years 1986–1995 for clodinafop‐propargyl on Avena spp. A spline method was used to analyse the combined data set of observed and interpolated covariates. In addition to dose, it was found that efficacy was significantly influenced by maximum temperature on the day of application, spray water volume, the interaction of maximum temperature and spray volume, the sum of minimum temperatures experienced in the 7 days prior to application, and the soil moisture deficit estimated for day 10 prior to application. The findings are discussed in relation to testing of new products for providing commercial factor‐adjustment information as an additional, marketable outcome of existing product testing procedures. Advantages of the spline model over the commonly used log–logistic model for evaluating dose–response and factor‐adjustment relationships are presented.

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Section: Introductionmentioning

confidence: 99%

Determination of environment‐specific dose–response relationships for clodinafop‐propargyl on Avena spp.

et al. 2001

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“…(Vanden Born & Schraa, 1973). A contributing factor to the eflfective control of perennial weeds by glyphosate is its ability to be translocated readily from the foliage to the root or rhizome systems (Baird et al, 1971;Rioux, Bandeen & Anderson, 1974), where it may exert a lethal effect. Glyphosate has a low mammalian toxicity and little or no residual effect in the soil (Baird et at., 1971;Monsanto Co., 1973).…”

Section: Introductionmentioning

confidence: 99%

Uptake, translocation, metabolism and selectivity of glyphosate in Canada thistle and leafy spurge

et al. 1976

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Summary: The uptake, translocation and metabolism of glyphosate [N‐(phosphonomethyl) glycine] by Canada thistle (Cirsium arvense (L.) Scop.) (susceptible) and leafy spurge (Euphorbia esula (L.)) (resistant) were examined in an attempt to elucidate the nature of the differential sensitivity. The pattern of uptake and translocation was similar in both species. Glyphosate moved readily in the apoplast and the symplast. High humidity and/or surfactant greatly increased the amount of 14C‐glyphosate absorbed and translocated over that in low humidity and/or without surfactant. No 14Cmetabolites were detected in either species 1 week after treatment with 14C‐glyphosate. More of a glyphosate spray solution containing a fluorescent dye was received and retained on Canada thistle by virtue of its growth habit than on leafy spurge. More glyphosate should therefore be available for uptake by Canada thistle and this may account for the differential sensitivity of these two species.

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“…Raleigh et al 1962). Williams (l970a,b, 1975) Rioux et al 1974 (Godbout 1960 (Metcalf et al 1962). Diptera: Rhytophage destructor (Say) (Fenton 1952 Palmer and Sagar (1963) Britain.…”

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confidence: 99%

The Biology of Canadian Weeds. 24. Agropyron Repens (L.) Beauv.

Werner¹,

Rioux²

1977

Can. J. Plant Sci.

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Perennial, spreading by seeds and ward, C-r2 mm long, haro and S-nerved; rhizomes; rhizomes long (up to I m), palea nearly as long as the lemma with 2 slender (1.5 mm), smooth, whitish, and rough keels; antheri 4-g mm long; fruit a scaly; leaves, 9-10 mm wide, 6-20 cm caryopsis, lance-shaped in outline, straw to long, finely pointed, flat, green, sometimes dirty-gray-colored, 9.0-9.0 mm long, glaucous, scrabrous at the margin and on 1.3-1.8 mm wide; sinus U-shaped, rachifli the upper surface, lower surface smooth; well exposed, about one-sixth to one-fifth leaf sheaths round, split, short, with the length of the caryopsis. The species is overlapping hyaline margins; ligules mem-hexaploid (palmer and Sagar 1963

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Effects of Growth Stage on Translocation of Glyphosate in Quack Grass

Cited by 37 publications

References 2 publications

Determination of environment‐specific dose–response relationships for clodinafop‐propargyl on Avena spp.

Determination of environment‐specific dose–response relationships for clodinafop‐propargyl on Avena spp.

Uptake, translocation, metabolism and selectivity of glyphosate in Canada thistle and leafy spurge

The Biology of Canadian Weeds. 24. Agropyron Repens (L.) Beauv.

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