Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-19T14:22:24.040Z Has data issue: false hasContentIssue false
  • English
  • Français

Carbohydrate Reserves in Roots of Dalmatian Toadflax

Published online by Cambridge University Press:  12 June 2017

W. C. Robocker ,
Roland Schirman  and
B. A. Zamora
W. C. Robocker
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of Agr., Washington State Univ., Pullman, Washington 99613
Roland Schirman
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of Agr., Washington State Univ., Pullman, Washington 99613
B. A. Zamora
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of Agr., Washington State Univ., Pullman, Washington 99613
Get access Rights & Permissions [Opens in a new window]

Abstract

Reserve carbohydrates of Dalmatian toadflax (Linaria dalmatica (L.) Mill.) in eastern Washington were at their highest levels in autumn at the end of the growing season, and the lowest point occurred at the beginning of flowering about June 15. A one-time removal of first-year floral stems (June 11, 1964) did not significantly lower reserve carbohydrates when measured in September, but similar clipping of floral stems the second year (June 16, 1965) did cause a significant reduction. Reserves were reduced by 2-(2,4,5-trichlorophenoxy)propionic acid (silvex) at 1.12 or 1.68 kg/ha but were not reduced by 4-amino-3,5,6-trichloropicolinic acid (picloram) at the same rates. Combinations of equal weights of the two herbicides to total 1.12 or 1.68 kg/ha caused a significant reduction in reserve carbohydrates. The combinations of silvex and picloram appeared to have an additive toxic effect, but the reduction of reserve carbohydrates was no greater than that caused by silvex alone at 1.12 or 1.68 kg/ha. Lethal action of the herbicides did not appear to be caused by reserve carbohydrate depletion. Glucose and fructose were the major reducing sugars detected in chromatographic analysis.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 3 , May 1972 , pp. 212 - 214
Copyright
Copyright © 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. Assoc. of Offic. Agr. Chem. 1960. Official Methods of Analysis. 9th ed. Assoc. Offic. Agr. Chem., Washington, D. C. 832 p.Google Scholar
2. Arny, A. C. 1932. Variations in the organic reserves in underground parts of five perennial weeds from late April to November. Univ. of Minnesota Agr. Exp. Sta. Tech. Bull. 84: 28 p.Google Scholar
3. Barr, C. G. 1940. Organic reserves in the roots of bindweed. J. Agr. Res. 60:391–413.Google Scholar
4. Cords, H. P. and Badiei, A. A. 1964. Root reserves and susceptibility to systemic herbicides in two phreatophytes. Weeds 12:299–301.Google Scholar
5. Grandfield, C. O. 1930. The relation of organic food reserves to the effect of cutting pasture weeds at different stages of growth. J. Amer. Soc. Agron. 22:709–713.Google Scholar
6. Hastings, R. E. and Kust, C. A. 1970. Reserve carbohydrate storage and utilization by yellow rocket, white cockle, and hoary alyssum. Weed Sci. 18:140–148.Google Scholar
7. Kerr, H. D., Robocker, W. C., and Muzik, T. J. 1965. Characteristics and control of camelthorn. Weeds 13:156–163.CrossRefGoogle Scholar
8. Klingman, G. C. and Ahlgren, G. H. 1951. Effects of 2,4-D on dry weight, reducing sugars, total sugars, polysaccharides, nitrogen and allyl sulfide in wild garlic. Bot. Gaz. 113:119–134.Google Scholar
9. Linscott, D. L. and McCarty, M. K. 1962. Effect of mowing and 2,4-D on carbohydrate content and amount of ironweed roots. Weeds 10:298–303.Google Scholar
10. McCarty, M. C. and Linscott, D. L. 1962. Response of ironweed to mowing and 2,4-D. Weeds 10:240–243.Google Scholar
11. McWhorter, C. G. 1961. Carbohydrate metabolism of johnsongrass as influenced by seasonal growth and herbicide treatment. Weeds 9:563–568.Google Scholar
12. Rasmussen, L. W. 1947. The physiological action of 2,4-dichlorophenoxyacetic acid on dandelion, Taraxacum officinale . Plant Physiol. 22:377–392.Google Scholar
13. Robocker, W. C. 1968. Control of Dalmatian toadflax. J. Range Manage. 21:94–98.Google Scholar
14. Smith, F. G., Hamner, C. L., and Carlson, R. F. 1947. Changes in food reserves and respiratory capacity of bindweed tissues accompanying herbicidal action of 2,4-dichlorophenoxyacetic acid. Plant Physiol. 22:58–65.Google Scholar
15. Welton, F. A., Morris, V. H., and Hartzler, A. J. 1929. Organic food reserves in relation to the eradication of Canada thistles. Ohio Agr. Exp. Sta. Bull. 441: 25 p.Google Scholar