Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-25T05:15:15.675Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Moisture Stress on Absorption and Movement of Picloram and 2,4,5-T in Beans

Published online by Cambridge University Press:  12 June 2017

M. G. Merkle  and
F. S. Davis
M. G. Merkle
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture
F. S. Davis
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture
Get access

Abstract

Gas chromatographic and thermoelectric methods were combined in a quantitative study of absorption and movement of 4-amino-3,5,6-trichloropicolinic acid (picloram) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) in bean plants in various intensities of moisture stress.

Foliar absorption of the herbicides studies was unaffected by extreme moisture stress. Herbicidal movement in the plant was markedly reduced, however. Distribution patterns were affected only when stress was permitted to progress to the wilting point. Picloram was more mobile than 2,4,5-T at all stresses.

Type
Research Article
Information
Weeds , Volume 15 , Issue 1 , January 1967 , pp. 10 - 12
Copyright
Copyright © 1967 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Basler, E., Todd, G. W., and Meyer, R. E. 1961. Effects of moisture stress on absorption, translocation, and distribution of 2,4-D in bean plants. Plant Physiol. 36:573–576.Google Scholar
2. Decker, J. P. and Skau, C. M. 1964. Simultaneous studies of transpiration rate and sap velocity in trees. Plant Physiol. 39:213–215.Google Scholar
3. Fisher, C. E., Meadors, C. H., and Behrens, R. 1956. Some factors that influence the effectiveness of 2,4,5-T in killing mesquite. Weeds 4:139–147.CrossRefGoogle Scholar
4. Hauser, E. W. 1955. Absorption of 2,4-D by soybean and corn plants. Agron. J. 47:32–36.Google Scholar
5. Leonard, O. A. 1956. Studies of factors affecting the control of chamise (Adenostoma fasciculatum) with herbicides. Weeds 4:241–254.CrossRefGoogle Scholar
6. Leonard, O. A. and Crafts, A. S. 1956. Uptake and distribution of radioactive 2,4-D by brush species. Hilgardia 26:366–381.CrossRefGoogle Scholar
7. Marshall, D. C. 1958. Measurement of sap flow in conifers. by heat transport. Plant Physiol. 33:385–396.Google Scholar
8. Merkle, M. G. and Davis, F. S. 1966. The use of gas chromatography in determining translocation of picloram and 2,4,5-T. Proc. SWC 19:557–561.Google Scholar
9. Nakayama, F. S. and Ehrler, W. L. 1964. Beta ray gauging technique for measuring leaf water content changes and moisture status of plants. Plant Physiol. 39:95–98.Google Scholar
10. Pallas, J. E. Jr. 1960. Effects of temperature and humidity on foliar absorption and translocation of 2,4-D and benzoic acid. Plant Physiol. 35:575–588.Google Scholar
11. Richards, L. A. and Ogata, G. 1958. Thermocouple for vapor pressure measurements in biological and soil systems at high humidity. Science 128:1089–1090.Google Scholar
13. Sundaram, A. 1965. A preliminary investigation of the penetration and translocation of 2,4,5-T in some tropical trees. Weed Res. 5:213–225.Google Scholar
14. Swanson, R. H. 1962. An instrument for detecting sap movement in woody plants. Rocky Mt. Forest and Range Expt. Sta. Paper 68.Google Scholar
15. Weatherly, P. E. 1950. Studies in the water relations of the cotton plant. I. The field measurement of water deficits in leaves. New Phytol. 49:81–97.Google Scholar
16. Wills, G. D., Basler, E., and Elwell, H. M. 1965. Factors affecting translocation of 2,4,5-T C14 in winged elm (Ulmus alata) (Abst.). Proc. SWC 18:604.Google Scholar