Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-22T19:55:09.140Z Has data issue: false hasContentIssue false
  • English
  • Français

Pendimethalin Phytotoxicity to Velvetleaf (Abutilon theophrasti) and Powell Amaranth (Amaranthus powellii)

Published online by Cambridge University Press:  12 June 2017

Timothy Malefyt  and
William B. Duke
Timothy Malefyt
Affiliation:
Dep. Agron., Cornell Univ., Ithaca, NY 14853
William B. Duke
Affiliation:
Dep. Agron., Cornell Univ., Ithaca, NY 14853
Get access Rights & Permissions [Opens in a new window]

Abstract

Velvetleaf (Abutilon theophrasti Medic. ♯3 ABUTH) and Powell amaranth (Amaranthus powellii S. Wats. ♯ AMAPO) control with pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine] was dependent on proper timing of application. Preemergence and early postemergence pendimethalin treatments provided effective control, but control rapidly diminished with later postemergence treatments, particularly on Powell amaranth. Time-course studies on the effects of pendimethalin on the growth of these species indicated that pendimethalin inhibited shoot growth by slowing or stopping the production of leaves and branches, as well as reducing leaf size and internode length. Pendimethalin appeared to have its greatest effect on portions of the shoot undergoing cell division.

Keywords

Growth stageleaf expansiongrowth inhibition
Type
Weed Biology and Ecology
Information
Weed Science , Volume 32 , Issue 4 , July 1984 , pp. 520 - 524
Copyright
Copyright © 1984 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. Anderson, W. P., Richards, A. D., and Whitworth, J. W. 1967. Trifluralin effects on cotton seedlings. Weed Sci. 15:224–227.Google Scholar
2. Ashton, F. M. and Crafts, A. S. 1981. Mode of action of herbicides. John Wiley and Sons, New York. 525 pp.Google Scholar
3. Barrentine, W. L. and Warren, G. F. 1971. Differential phytotoxicity of trifluralin and nitralin. Weed Sci. 19:31–37.Google Scholar
4. Bayer, G. H. 1978. A three year summary of velvetleaf control in corn. Proc. Northeast. Weed Sci. Soc. 32:2–3.Google Scholar
5. Duke, W. B. and Hunt, J. F. 1975. Weed growth in response to greenhouse supplemental lighting. Weed Sci. 23:314–316.Google Scholar
6. Fisher, B. B. 1966. The effect of trifluralin on the root development of seedling cotton. Aust. J. Exp. Agric. Anim. Husb. 6:580–590.Google Scholar
7. Gentner, W. R. and Burk, L. G. 1968. Gross morphological and cytological effects of nitralin on corn roots. Weed Sci. 16:259–260.CrossRefGoogle Scholar
8. Hollingsworth, D. and Abernathy, J. R. 1977. Efficacy and phytotoxocity of post-incorporated applications of dinitroaniline herbicides in corn and sorghum. Proc. South. Weed Sci. Soc. 30:119.Google Scholar
9. Ilnicki, R. D. and Michieka, R. W. 1977. Penoxalin alone and in combination with atrazine, cyanazine, and RH-5205 for weed control in corn. Proc. Northeast. Weed Sci. Soc. 31:6–10.Google Scholar
10. Lignowski, E. M. and Scot, E. G. 1972. Effect of trifluralin on mitosis. Weed Sci. 20:267–270.Google Scholar
11. Malefyt, T. and Duke, W. B. 1980. Velvetleaf control in corn. Proc. Northeast. Weed Sci. Soc. 34:29–34.Google Scholar
12. Parka, S. J. and Soper, O. F. 1977. The physiology and mode of action of the dinitroaniline herbicides. Weed Sci. 25:79–87.Google Scholar
13. Rehm, S. and El-Masry, R. 1976. The effects of growth regulators and herbicides on purple nutsedge. Z. Acker Pflanzenb. 143:98–108.Google Scholar
14. Standifer, L. C. and Thomas, C. H. 1965. Response of johnsongrass to soil incorporated trifluralin. Weed Sci. 13:302–308.Google Scholar
15. Sunderland, N. 1960. Cell division and expansion in the growth of the leaf. J. Exp. Bot. 11:68–80.Google Scholar