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- Title
<em>Studies of the uptake and translocation of <sup>14</sup>C-labelled herbicides in</em> Agrostemma githago L. <em>and</em> Tussilago farfara <em>L</em>.
- Authors
Sanad, A. J.
- Abstract
Studies of the uptake and translocation of 14C-labelled 2,4-D, MCPA and aminotriazole in <em>Agrostemma githago</em> L. and <em>Tussilago farfara</em> L. clarified the behaviour the herbicides in both species. In <em>A. githago</em>, MCPA was more freely mobile than 2,4-D after application to the leaf; it was distributed in the plant more rapidly and in greater quantity. Similarly, following root uptake MCPA was transported in the shoot in greater amounts than was 2,4-D. There is a clear relationship between the susceptibility of <em>A. githago</em> to MCPA and the mobility of the herbicide in the plant. In <em>T. farfara</em>, 2,4-D and aminotriazole applied to the leaves were equally well absorbed and relatively rapidly translocated. During the period up to 72 h the amounts of herbicide in the plant increased to similar levels; after that, 14C activity in plants treated with 2,4-D fell slightly whereas there was further accumulation of aminotriazole. Following uptake through the roots, translocation and accumulalion in the leaves were considerably greater with aminotriazole than with 2,4-D. The lack of accumulation of 2,4-D could be a factor in the resistance of <em>T. farfara</em> to this herbicide.
- Subjects
WEED control; MCPA (Herbicide); HERBICIDES; TUSSILAGO; TUSSILAGO farfara
- Publication
Weed Research, 1971, Vol 11, Issue 4, p215
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1971.tb01003.x