Hostname: page-component-84b7d79bbc-rnpqb Total loading time: 0 Render date: 2024-07-25T23:31:21.702Z Has data issue: false hasContentIssue false
  • English
  • Français

Primary Root Elongation of Three Weed Species

Published online by Cambridge University Press:  12 June 2017

D. H. Teem ,
C. S. Hoveland  and
G. A. Buchanan
D. H. Teem
Affiliation:
Dep. of Agron. and Soils, Auburn Univ. Agr. Exp. Sta., Auburn, AL 36830
C. S. Hoveland
Affiliation:
Dep. of Agron. and Soils, Auburn Univ. Agr. Exp. Sta., Auburn, AL 36830
G. A. Buchanan
Affiliation:
Dep. of Agron. and Soils, Auburn Univ. Agr. Exp. Sta., Auburn, AL 36830
Get access Rights & Permissions [Opens in a new window]

Abstract

Primary root elongation of prickly sida (Sida spinosa L.) at pH 5.5 was similar to that at pH 6.5 while sicklepod (Cassia obtusifolia L.) was reduced to 62% and tall morningglory [Ipomoea purpurea (L.) Roth] to 87% of that at pH 6.5. At pH 5.1, root elongation of prickly sida was reduced to 77% of that at pH 5.5. Some elongation was observed in the pH range of 5.1 to 6.5 for all species. Maximum primary root growth of tall morningglory, sicklepod, and prickly sida occurred at approximately 32° which was similar to that for cotton (Gossypium hirsutum L. ‘Empire’). Temperature as high as 39° did not significantly reduce root elongation of sicklepod. Tall morningglory root growth was reduced approximately 50% by 0.2 ppm of trifluralin (α,α,α-trifluro-2,6-dinitro-N,N-dipropyl-p-toluidine). In contrast, sicklepod and prickly sida root growth was reduced only slightly by 1 ppm of trifluralin.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 1 , January 1974 , pp. 47 - 50
Copyright
Copyright © 1974 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. Adams, Fred and Lund, Z.F. 1966. Effect of chemical activity of soil solution aluminum on cotton root penetration of acid subsoils. Soil Sci. 101:193–198.Google Scholar
2. Adams, Fred and Pearson, R.W. 1970. Differential response of cotton and peanuts to subsoil acidity. Agron. J. 62:9–12.CrossRefGoogle Scholar
3. Arle, H.F. 1968. Trifluralin-systemic insecticide interactions on seedling cotton. Weeds 16:430–431.Google Scholar
4. Asher, C.J. and Ozanne, P.G. 1966. Root growth in seedlings of annual pasture species. Plant and Soil 24(3):423–436.Google Scholar
5. Barrentine, W.L. and Warren, G.F. 1971. Differential phytotoxicity of trifluralin and nitralin. Weed Sci. 19:31–37.CrossRefGoogle Scholar
6. Buchanan, G.A. 1971. Knowing your tools in setting up weed control programs. Cotton International 38:51–53.Google Scholar
7. Frans, R.E. 1969. Changing ecology of weeds in cotton fields. Beltwide Cotton Production-Mechanization Conf. Proc. (New Orleans, La.). p. 29–30.Google Scholar
8. Oliver, L.R. and Frans, R.E. 1968. Inhibition of cotton and soybean roots from incorporated trifluralin and persistence in soil. Weed Sci. 16:199–203.CrossRefGoogle Scholar
9. Pearson, R.W., Ratliff, L.F., and Taylor, H.M. 1970. Effect of soil temperature, strength, and pH on cotton seedling root elongation. Agron. J. 62:243–246.Google Scholar
10. Rizk, Tawakal Y., Normand, W.C., and Sloane, L.W. 1969. Studies of Sida spinosa in Louisiana. Proc. S. Weed. Conf. 22:340.Google Scholar
11. Standifer, L.C., Sloane, L.W., and Wright, M.E. 1965. The effects of repeated trifluralin applications on growth of cotton plants. Proc. S. Weed Conf. 18:92–93.Google Scholar
12. Wiese, A.F. 1968. Rate of weed root elongation. Weeds 16:11–13.Google Scholar
13. Wilson, H.P. and Cole, R.H. 1966. Morningglory competition in soybeans. Weeds 14:49–51.Google Scholar