Physiological characteristics of a stem cut and blade delivery method of application

Herbicide absorption and translocation patterns were determined following a wet blade method of application to dogfennel stems. Treatment consisted of severing stems with a pruning shear blade containing 5 μl of [14C]-triclopyr or [14C]-clopyralid solution. More than 73 or 82% of applied [14C]-tricl...

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Bibliographic Details
Published in:Weed science 1997-12, Vol.45 (6), p.746-749
Main Authors: Wahlers, Richard L., Burton, James D., Maness, Eleanor P., Skroch, Walter A.
Format: Article
Language:English
Subjects:
application methods
carbon
Cavitation flow
clopyralid
Crop harvesting
Delivery methods
Eupatorium capillifolium
Flowers
Herbicides
isotope labeling
Physiology, Chemistry, and Biochemistry
plant physiology
Plant roots
Plants
Pruning shears
Radioactive decay
stems
translocation (plant physiology)
triclopyr
uptake
Xylem
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Summary:Herbicide absorption and translocation patterns were determined following a wet blade method of application to dogfennel stems. Treatment consisted of severing stems with a pruning shear blade containing 5 μl of [14C]-triclopyr or [14C]-clopyralid solution. More than 73 or 82% of applied [14C]-triclopyr or [14C]-clopyralid was absorbed immediately, and uptake increased to more than 90%, 60 min after treatment. Both radiolabeled compounds appeared in the roots as soon as 12 h after treatment. By 48 h, 5 to 7% of the [14C] label was present in the roots, and 7 to 10% was exuded from the roots.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500088913