Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-10T08:29:49.423Z Has data issue: false hasContentIssue false
  • English
  • Français

Exudation of Glyphosate from Wheat (Triticum aestivum) Plants and Its Effects on Interplanted Corn (Zea mays) and Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Joaquim J.V. Rodrigues ,
A. Douglas Worsham  and
Frederick T. Corbin
Joaquim J.V. Rodrigues
Affiliation:
Dep. Fitotecnia, Univ. Fed. Vicosa, Vicosa – MG 36570, Brazil
A. Douglas Worsham
Affiliation:
Dep. Fitotecnia, Univ. Fed. Vicosa, Vicosa – MG 36570, Brazil
Frederick T. Corbin
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, NC 27650
Get access Rights & Permissions [Opens in a new window]

Abstract

Glyphosate [N-(phosphonomethyl)glycine] applied at 1.1 kg/ha to wheat [Triticum aestivum (L.) ‘Arthur 71′] plants increased height and fresh weight of soybean [Glycine max (L.) Merr. ‘Ransom′] seedlings planted in the pot at time of application of the glyphosate as the number of wheat plants treated increased from 5 to 30/pot. Height and fresh weight of the soybean seedlings also increased as the rate of glyphosate applied to wheat plants (5/pot) increased from 1.1 to 6.7 kg/ha. Increasing the rate of glyphosate from 1.1 to 6.7 kg/ha, however, reduced the height and fresh weight of soybeans when 30 wheat plants/pot were treated. In addition, when 6.7 kg/ha of glyphosate were applied to wheat plants, soybean-seedling plant height and fresh weight decreased as the density of wheat plants per pot increased from 5 to 30. The 14C-glyphosate exuded into the soil from treated wheat plants was characterized by thin-layer chromatography. Trace amounts of the radio-label were present on thin-layer plates of leaf and stem extracts of corn (Zea mays L.) plants, which were growing in the same pots with the treated wheat plants. The zone of activity had the same Rf value as the glyphosate standard.

Keywords

Growth regulatorherbicide uptakeno – tillageparaquat
Type
Research Article
Information
Weed Science , Volume 30 , Issue 3 , May 1982 , pp. 316 - 320
Copyright
Copyright © 1982 by the 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. Baur, J. R., Bovey, R. W., and Veech, J. A. 1977. Growth responses in sorghum and wheat induced by glyphosate. Weed Sci. 25:238–240.Google Scholar
2. Coupland, D. and Caseley, J. C. 1975. Reduction of silica and increase in tillering induced in Agropyron repens (L.) Beauv. by glyphosate. J. Exp. Bot. 26:138–144.CrossRefGoogle Scholar
3. Coupland, D. and Caseley, J. C. 1979. Presence of 14C activity in root exudates and guttation fluid from Agropyron repens treated with 14C-labeled glyphosate. New Phytol. 83:17–22.Google Scholar
4. Egley, G. H. and Williams, R. D. 1978. Glyphosate and paraquat effects on weed seed germination and emergence. Weed Sci. 26:249–251.Google Scholar
5. Fites, R. C., Slife, F. W., and Hanson, J. B. 1964. Translocation and metabolism of radioactive 2,4-D in jimsonweed. Weeds 12:180–183.Google Scholar
6. Gottrup, O. P. O'Sullivan, A., Schraa, R. J., and Vanden Born, W. H. 1976. Uptake, translocation, metabolism and selectivity of glyphosate in Canada thistle and leafy spurge. Weed Res. 16:197–201.Google Scholar
7. Jordan, T. N. 1977. Effects of temperature and relative humidity on toxicity of glyphosate to bermudagrass [Cynodon dactylon (L.) Pers.]. Weed Sci. 25:448–450.CrossRefGoogle Scholar
8. Kells, J. J. and Rieck, C. E. 1978. Accumulation of C-14 glyphosate in johnsongrass. Proc. South. Weed Sci. Soc. 31:234.Google Scholar
9. Klosterboer, A. D. 1974. Phytotoxicity of glyphosate, MSMA, and paraquat to bearing citrus. Proc. South. Weed Sci. Soc. 27:166–169.Google Scholar
10. Linder, P. J., Mitchell, J. W., and Freeman, G. D. 1964. Persistence and translocation of exogenous regulating compounds that exude from roots. J. Agric. Food Chem. 12:437–438.Google Scholar
11. Neidermyer, R. W. and Nalewaja, J. D. 1969. Uptake, translocation and fate of 2,4-D in night flowering catchfly and common lambsquarters. Weed Sci. 17:528–532.CrossRefGoogle Scholar
12. Nomura, N. C. and Hilton, H. W. 1977. The adsorption and degradation of glyphosate in five Hawaiian sugarcane soils. Weed Res. 17:113–121.Google Scholar
13. Reid, C. P. and Hunt, W. 1970. Root exudation of herbicides by woody plants: Allelopathic implications. Nature (London) 225:291.Google Scholar
14. Rodrigues, J. J. and Worsham, A. D. 1980. Increasing yields of no-till corn with glyphosate and effect of stubble height and tank mixes. Abstr., Weed Sci. Soc. Am. p. 31.Google Scholar
15. Rovira, A. D. 1969. Plant root exudates. Bot. Rev. 35:35–37.CrossRefGoogle Scholar
16. Segura, J., Bingham, S. W., and Foy, C. L. 1978. Phytotoxicity of glyphosate to Italian ryegrass (Lolium multiflorum Lam.) and red clover (Trifolium pratense L.). Weed Sci. 26:32–36.Google Scholar
17. Sharma, M. P., Chang, F. Y., and Vanden Born, W. H. 1971. Penetration and translocation of picloram in Canada thistle. Weed Sci. 4:349–355.Google Scholar
18. Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Adsorption, mobility, and microbial degradation of glyphosate in the soil. Weed Sci. 23:229–234.Google Scholar
19. Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Rapid inactivation of glyphosate in the soil. Weed Sci. 23:224–228.CrossRefGoogle Scholar
20. Wills, G. D. 1978. Factors affecting toxicity and translocation of glyphosate in cotton (Gossypium hirsutum L.). Weed Sci. 26:509–513.Google Scholar
21. Worsham, A. D. and Lewis, W. M. 1973. No-tillage corn and soybeans with glyphosate. Proc. South. Weed Sci. Soc. 26:43.Google Scholar
22. Wyrill, J. B. III and Burnside, O. C. 1976. Absorption, translocation, and metabolism of 2,4-D and glyphosate in common milkweed and hemp dogbane. Weed Sci. 24:557–566.Google Scholar