Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-22T20:12:53.891Z Has data issue: false hasContentIssue false
  • English
  • Français

Differential Root Growth of Four Setaria Taxa

Published online by Cambridge University Press:  12 June 2017

P. L. Orwick  and
M. M. Schreiber
P. L. Orwick
Affiliation:
Agr. Res. Serv., U.S. Dep. of Agr., Dep. of Botany and Plant Pathol., Purdue Univ., West Lafayette, IN 47907
M. M. Schreiber
Affiliation:
Agr. Res. Serv., U.S. Dep. of Agr., Dep. of Botany and Plant Pathol., Purdue Univ., West Lafayette, IN 47907
Get access Rights & Permissions [Opens in a new window]

Abstract

We studied the early root growth of four Setaria taxa: giant foxtail (Setaria faberi Herrm.), giant green foxtail [Setaria viridis var. major (Gaud.) Posp.], robust white foxtail (Setaria viridis var. robusta-alba Schreiber), robust purple foxtail (Setaria viridis var. robusta-purpurea Schreiber). Growth studies in controlled environments showed significant differences in root elongation among the taxa at three photoperiods. Seminal root lengths after 4 days followed the order presented for selectivity and metabolism of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] and propazine [2-chloro-4,6-bis(isopropylamino)-s-triazine] (robust white foxtail > giant green foxtail = robust purple foxtail > giant foxtail). Giant foxtail had the greatest root diameter, resulting in the greatest surface area and volume when lengths were equated. The order of seminal root lengths or diameters changed little after 7 days. Robust white foxtail had the most and longest first order lateral roots. Diameter of first order laterals showed giant foxtail > giant green foxtail = robust purple foxtail > robust white foxtail.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 5 , September 1975 , pp. 364 - 368
Copyright
Copyright © 1975 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. Ashton, F.M. 1961. Movement of herbicides with simulated furrow irrigation. Weeds 9:612–619.Google Scholar
2. Chen, T.M., Brown, R.H., and Black, C.C. 1970. CO2 compensation concentration, rate of photosynthesis, and carbonic anhydrase activity of plants. Weed Sci. 18:399–403.Google Scholar
3. Evetts, L.L. and Burnside, O.C. 1973. Early root and shoot development of nine plant species. Weed Sci. 21:289–291.CrossRefGoogle Scholar
4. Hackett, C. 1969. A study of the root system of barley. II. Relationship between root dimensions and nutrient uptake. New Phytol. 68:1023–1030.Google Scholar
5. Hackett, C. 1973. A growth analysis of the young sorghum root system. Aust. J. Biol. Sci. 26:1211–1214.Google Scholar
6. Hurd, E.A. 1964. Root studies of three wheat varieties and then-resistance to drought and damage by soil cracking. Can. J. Plant Sci. 44:240–248.Google Scholar
7. Hurd, E.A. 1968. Growth of roots of seven varieties of spring wheat at high and low moisture levels. Agron. J. 60:201–205.CrossRefGoogle Scholar
8. Imbamba, S.K. and Moss, D.N. 1971. Effect of atrazine on physiological processes in leaves. Crop Sci. 11:844–848.CrossRefGoogle Scholar
9. May, L.H., Chapman, F.G., and Aspinall, D. 1965. Quantitative studies of root development. I. The influence of nutrient concentration. Aust. J. Biol. Sci. 18:25–35.Google Scholar
10. Moss, D.N. 1968. Relation in grasses of high photosynthetic capacity and tolerance to atrazine. Crop Sci. 8:774.Google Scholar
11. Oliver, L.R. and Schreiber, M.M. 1971. Differential selectivity of herbicides on six Setaria taxa. Weed Sci. 19:428–431.Google Scholar
12. Sheets, T.J. 1959. The comparative toxicities of monuron and simazine in soil. Weeds 7:189–194.Google Scholar
13. Thompson, L. Jr. 1972. Metabolism of chloro-s-triazine herbicides by Panicum and Setaria . Weed Sci. 20:584–587.Google Scholar
14. Upchurch, R.P. and Mason, D.D. 1962. The influence of soil organic matter on the phytotoxicity of herbicides. Weeds 10:9–14.Google Scholar
15. Walker, A. 1972. Availability of atrazine to plants in different soils. Pestic. Sci. 3:139–148.Google Scholar
16. Withrow, R.B. and Withrow, A.D. 1948. Nutriculture. Purdue University Agr. Exp. Sta. Circ. 328. 60 pp.Google Scholar