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Translocation of Herbicides in Detached Bean Leaves

Published online by Cambridge University Press:  12 June 2017

O. A. Leonard  and
R. K. Glenn
O. A. Leonard
Affiliation:
Botany Department, University of California, Davis, California
R. K. Glenn
Affiliation:
Botany Department, University of California, Davis, California
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Abstract

Labeled 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,5-trichlorophenoxyacetic acid (2, 4, 5-T), 2-methoxy-3,6-dichlorobenzoic acid (dicamba), 4-amino-3, 5, 6-trichloropicolinic acid (picloram), 1,2-dihydropyridazine-3,6-dione (MH), assimilates, and phosphoric acid were absorbed and transported basipetally from the lamina into the petioles of detached bean leaves (Phaseolus vulgaris L.). Upward transport in the lamina was slight, except when the petioles were in water. In contrast, labeled 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) was not transported basipetally, but some acropetal transport did occur. Vein-loading and transport of labeled assimilates, 2,4-D, dicamba, MH, and phosphate were greatly reduced by a prior treatment with 7-oxabicyclo(2.2.1)heptane-2,3-dicarboxylic acid (endothall). Detached leaves hold promise for use in absorption and transport studies.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 3 , July 1968 , pp. 352 - 356
Copyright
Copyright © Weed Science Society of America 

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References

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