Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-12-01T14:15:57.784Z Has data issue: false hasContentIssue false
  • English
  • Français

Some Effects of Amitrol on the Respiratory Activities of Zea mays

Published online by Cambridge University Press:  12 June 2017

C. G. McWhorter  and
W. K. Porter
C. G. McWhorter
Affiliation:
Louisiana State University, Baton Rouge, Louisiana Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Delta Branch Experiment Station, Stoneville, Mississippi
W. K. Porter
Affiliation:
Louisiana State University, Baton Rouge, Louisiana
Get access

Extract

Amitrol (3-amino-1,2,4-triazole) has received considerable attention in recent years as a herbicide and defoliant. This material was noted to have growth-inhibiting and defoliating properties by Hall et al. in 1952. Hall et al. reported that amitrol caused chlorophyll destruction under certain conditions and that chlorophyll synthesis was impaired in tissues formed at the time of, or subsequent to, absorption of the chemical. These workers also reported that cotton treated with amitrol showed a loss approximately 50 percent of the original reducing sugars and sucrose. Herbert and Linck have reported an initial increase in the rate of respiration of Canada thistle following treatment with amitrol. This initial respiratory increase was followed by a decrease which was dependent upon time as well as the concentration of amitrol applied to the plants. Similar results were obtained by Miller and Hall using Avena sections and cotton leaf discs. Heim et al. found that amitrol caused decreases in catalase activity of certain plants. Reduction of chlorophyll content and catalase activity were obtained following application of amitrol to leaves of potato, barley, and sunflower. In experiments reported in a more recent paper by these workers, amitrol caused in vitro inhibition of catalase activity.

Type
Research Article
Information
Weeds , Volume 8 , Issue 1 , January 1960 , pp. 29 - 38
Copyright
Copyright © 1960 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. Hall, W. C., Johnson, S. P., and Leinweber, C. L. Chemical defoliation and regrowth inhibition in cotton. Texas Agr. Exp. Sta. Bul. 759. 1953.Google Scholar
2. Hall, W. C., Johnson, S. P., and Leinweber, C. L. Amino triazole—a new abscission chemical and growth inhibitor. Texas Agr. Exp. Sta. Bul. 789. 1954.Google Scholar
3. Heim, W. G., Appleman, D., and Pyfrom, H. T. Effects of 3-amino-1,2,4-triazole (AT) on catalase and other compounds. Am. Jour. Physiol. 186, 19–23. 1956.CrossRefGoogle Scholar
4. Herbert, R. A., and Linck, A. J. The influence of 3-amino-1,2,4-triazole on the carbohydrate balance and respiration in Canada thistle. Plant Physiol. 32(Supplement):vi. 1957.Google Scholar
5. Miller, C. S., and Hall, W. C. Effects of amino triazole salts and derivatives on cotton defoliation growth inhibition and respiration. Weeds 5:218–226. 1957.Google Scholar
6. Pyfrom, H. T., Appleman, D., and Heim, W. G. Catalase and chlorophyll depression by 3-amino-1,2,4-triazole. Plant Physiol. 32:674–676. 1957.Google Scholar
7. Rogers, B. J. Translocation and fate of amino triazole in plants. Weeds 5:5–11. 1957.CrossRefGoogle Scholar
8. Rogers, B. J. Chlorosis in corn as induced by the herbicide 3-amino-1,2,4-triazole. Plant Physiol. 32(Supplement):vi–vii. 1957.Google Scholar
9. Umbreit, W. W., Burris, R. H., and Stauffer, J. F. Manometric techniques and tissue metabolism, 2nd ed., pp. 30–39. Burgess Publ. Co., Minneapolis, Minnesota. 1949.Google Scholar