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Web URL(s): | http://www.jstor.org/stable/view/4042708 Last checked: 05/02/2014 Access conditions: Item is within a limited-access website http://www.jstor.org/stable/pdfplus/4042708.pdf Last checked: 05/02/2014 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Egley, G. H.;
Williams, R. D. |
Author Affiliation: | Plant Physiol. and Plant Ecol., South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS |
Title: | Glyphosate and paraquat effects on weed seed germination and seedling emergence |
Source: | Weed Science. Vol. 26, No. 3, May 1978, p. 249-251. |
Publishing Information: | Champaign, IL: Weed Science Society of America |
# of Pages: | 3 |
Related Web URL: | http://www.jstor.org/stable/info/4042708 Last checked: 05/02/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Amaranthus retroflexus; Cultivar variation; Echinochloa crusgalli; Germination inhibitors; Glyphosate; Herbicide application; Herbicide efficacy; Herbicide evaluation; Paraquat; Seed germination; Seedling emergence; Sida; Sorghum halepense; Abutilon theophrasti; Weed control; Weed emergence
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Abstract/Contents: | "Glyphosage [N-(phosphonomethyl)glycine] (30, 125, 250 mg/L) in petri dishes had no effect on germination of prickly sida (Sida spinosa L.), velvetleaf (Abutilon theophrasti Medic.), barnyardgrass [Echinocloa crus-galli (L.) Beauv.] and johnsongrass [Sorghum halepense (L.) Pers.] seeds, but additional experimentation indicated that glyphosate stimulated germination of redroot pigweed (Amaranthus retroflexus L.) seeds. Paraquat (1,1' -dimethyl-4,4' -bipyridiniumion) (30, 125, 250 mg/L) did not affect germination of the three broadleaf species, but inhibited johnsongrass and barnyard grass germination. In the greenhouse, soil surface applications of glyphosate (1.1, 2.2, 9.0 kg/ha) did not significantly affect emergence of these five weed species when they were on or beneath the soil surface at time of treatment. Paraquat (same rates) did not affect broadleaf weed emergence but some rates inhibited grass weed emergence when the seeds were treated while on the soil surface. It is unlikely that normal field use rates of glyphosate will influence weed emergence; whereas paraquat may inhibit the emergence of some grass weeds if the herbicide contacts seeds on the soil surface." |
Language: | English |
References: | 8 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Egley, G. H., and R. D. Williams. 1978. Glyphosate and paraquat effects on weed seed germination and seedling emergence. Weed Sci. 26(3):p. 249-251. |
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| Web URL(s): http://www.jstor.org/stable/view/4042708 Last checked: 05/02/2014 Access conditions: Item is within a limited-access website http://www.jstor.org/stable/pdfplus/4042708.pdf Last checked: 05/02/2014 Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 610 .W38 |
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