Results 91 to 100 of about 151 (130)

Droplet size affects glyphosate retention, absorption, and translocation in corn

Weed Science, 2003
Abstract The effect of droplet size on retention, absorption, and translocation of 14C-glyphosate was studied in glyphosate-resistant corn. Fine, medium, and coarse spray droplets were studied using a track-sprayer equipped with commercially available nozzles.
Paul C. C. Feng, Tommy Chiu, R. Douglas Sammons, Jan S. Ryerse   +3 more
openaire   +1 more source

Causes of Self-Limited Translocation of Glyphosate in Beta vulgaris Plants

Pesticide Biochemistry and Physiology, 1999
Abstract Causes of self-induced limitation of glyphosate translocation were studied in sugar beet plants that were susceptible to or tolerant of (Roundup Ready) glyphosate. Glyphosate was taken up in both types of plants at the same rate and essentially stopped at the same time, around 4 h after [14C]glyphosate was applied in 1% Roundup formulation ...
Geiger, Donald R., Shieh, Wen-Jang, Fuchs, Mark A.   +2 more
openaire   +2 more sources

Effects of Frost and Maturity on Glyphosate Phytotoxicity, Uptake, and Translocation

Weed Science, 1979
The effect of temperatures below 0 C and plant maturity on the phytotoxicity of glyphosate [N-(phosphonomethyl)glycine] on rapidly growing alfalfa (Medicago sativaL. ‘Vernal’) and quackgrass [Agropyron repens(L.) Beauv.] plants was studied in a controlled environment.
H. E. Davis, R. S. Fawcett, R. G. Harvey
openaire   +1 more source

Absorption and translocation of glyphosate in glyphosate-resistant cotton as influenced by application method and growth stage

Weed Science, 2001
Abstract The influence of herbicide placement and plant growth stage on the absorption and translocation patterns of 14C-glyphosate in glyphosate-resistant cotton was investigated. Plants at four growth stages were treated with 14C-glyphosate on a 5-cm2 section of the stem, which simulated a postemergence-directed spray (PDS) application, or on the ...
Wendy A. Pline, Andrew J. Price, John W. Wilcut, Keith L. Edmisten, Randy Wells   +4 more
openaire   +1 more source

EFFECTS OF GROWTH STAGE ON TRANSLOCATION OF GLYPHOSATE IN QUACK GRASS

Canadian Journal of Plant Science, 1974
Visual symptoms of toxicity (inhibition of leaf growth and bud germination) were used to study the influence of growth stage of quack grass (Agropyron repens (L.) Beauv.) on glyphosate (N-phosphonomethyl glycine) transport and efficiency. Glyphosate (or a toxic metabolite) moved in sufficient quantity from the point of application on the leaf within 1
R. RIOUX, J. D. BANDEEN, G. W. ANDERSON
openaire   +1 more source

Absorption and Translocation of Fluridone and Glyphosate in Submersed Vascular Plants

Weed Science, 1981
The uptake and translocation of fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone} were examined in sago pondweed (Potamogeton pectinatusL.) and Richardson pondweed [Potamogeton richardsonii(Ar. Benn.) Rydb.]. Root and shoot tissues of both species were isolated from each other with wax barriers and treated individually with 1.
L. Y. Marquis, R. D. Comes, C. P. Yang
openaire   +1 more source

Role of Translocation as A Mechanism of Resistance to Glyphosate

Weed Science, 2009
The continuous use of glyphosate has resulted in the selection of glyphosate-resistant (GR) biotypes in 13 weed species. Decreased translocation of glyphosate to the meristematic tissue is the primary mechanism of resistance in horseweed, hairy fleabane, rigid ryegrass, and Italian ryegrass, and the resistance is inherited as a single, semidominant ...
openaire   +1 more source

Penetration, Translocation, and Toxicity of Glyphosate in Bermudagrass (Cynodon dactylon)

Weed Science, 1977
A 3.6 g/L solution of glyphosate [N-(phosphonomethyl)glycine] applied to selected parts of bermudagrass [Cynodon dactylon (L.) Pers.] shoots did not kill the entire plant. However, phototoxicity increased as more parts of the plant were treated. No differences were observed when solutions of 3.6 and 5.4 g/L glyphosate were applied at 94 and 373 L/ha ...
C.H. Fernandez, D.E. Bayer
openaire   +1 more source

Translocation and Absorption of Glyphosate in Flowering Sicklepod (Senna obtusifolia)

Weed Science, 2008
Sicklepod is a competitive and prolific weed that emerges throughout the crop season. Glyphosate applications to flowering sicklepod greatly reduce seed production, but there is limited information on glyphosate translocation in flowering weeds. Therefore, a laboratory study was conducted to document the absorption and translocation of14C-glyhosate in ...
Eric R. Walker, Lawrence R. Oliver
openaire   +1 more source

Glyphosate Absorption and Translocation in Rust-Infected Quackgrass (Elytrigia repens)

Weed Science, 1995
Puccinia coronatainfection increased absorption of14C-glyphosate in quackgrass 3 days after inoculation (DAI) when compared to 0,6,9, or 12 DAI. Days after inoculation had no effect on glyphosate translocation out of treated leaves until 9 to 12 DAI when 89% of the absorbed14C-glyphosate was retained within the infected leaf.
Russell W. Wallace, Robin R. Bellinder
openaire   +1 more source