Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-16T03:27:59.299Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of Plant Water Potential in Water Stress Studies

Published online by Cambridge University Press:  12 June 2017

Daniel W. Kidder  and
Richard Behrens
Daniel W. Kidder
Affiliation:
Univ. Minnesota Ext. Serv., St. Paul, MN 55108
Richard Behrens
Affiliation:
Univ. Minnesota, St. Paul, MN 55108
Get access Rights & Permissions [Opens in a new window]

Abstract

Weed seedlings were grown in a composite soil contained within a semipermeable membrane that allowed the development of consistent, reproducible levels of plant water stress. The water content of membrane units with a 1-cm cross section equilibrated most rapidly, within 3 to 5 days, with the external osmotic solution. The water potential (Ψ) of green foxtail grown in plant growth membrane units was curvilinearly related to the external polyethylene glycol (PEG) osmotic solution Ψ. This relationship permitted nondestructive estimation of plant Ψ. Green foxtail shoot growth in membrane units was reduced by decreasing Ψ of the external PEG osmotic solution and was completely arrested by high water stress induced by an −800 kPa external osmotic solution. The technique makes possible precise control and relatively rapid adjustment in the level and duration of plant Ψ of seedlings and small plants.

Keywords

Green foxtailSetaria viridus (L.) Beauv. # SETVISemipermeable membranePEGsoil moisturewater stresssoil water potentialSETVI
Type
Soll, Air, and Water
Information
Weed Science , Volume 39 , Issue 1 , March 1991 , pp. 91 - 96
Copyright
Copyright © 1991 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. Cox, L. M. and Boersma, L. 1967. Transpiration as a function of soil temperature and soil water stress. Plant Physiol. 42:550–556.CrossRefGoogle ScholarPubMed
2. Emmert, F. H. 1974. Inhibition of phosphorus and water passage across intact roots by polyethylene glycol and phenylmercuric acetate. Plant Physiol. 53:663–665.Google Scholar
3. Johnson, D. A. and Asay, K. H. 1978. A technique for assessing seedling emergence under drought stress. Crop Sci. 18:520–522.Google Scholar
4. Karnoski, T. C., Willits, D. H., and Skaggs, R. W. 1984. Porous bulbs to control water contents in container media. Hortic. Sci. 19:393–395.Google Scholar
5. Kaufmann, M. R. 1969. Effects of water potential on germination of lettuce, sunflower, and citrus seeds. Can. J. Bot. 47:1761–1764.Google Scholar
6. Klute, A., ed. 1986. Methods of soil analysis. Monogr. No. 9. Part 1, physical and mineralogical methods. 2nd ed. Soil Sci. Soc. Am. and Am. Soc. Agron. 1216 pp.Google Scholar
7. Lawlor, D. W. 1970. Absorption of polyethylene glycols by plants and their effects on plant growth. New Phytol. 69:501–513.Google Scholar
8. Mexal, J., Fisher, J. T., Osteryoung, J., and Patric Reid, C. P. 1975. Oxygen availability in polyethylene glycol solutions and its implications in plant-water relations. Plant Physiol. 55:20–24.Google Scholar
9. Painter, L. I. 1966. Method of subjecting growing plants to a continuous soil moisture stress. Agron. J. 58:459–460.Google Scholar
10. Richards, L. A. and Loomis, W. E. 1942. Limitations of auto-irrigators for controlling soil moisture under growing plants. Plant Physiol. 17:223–235.Google Scholar
11. Salisbury, F. B. and Ross, C. W. 1978. Plant Physiology. 2nd ed. Wadsworth Publishing Co., Inc. 448 pp.Google Scholar
12. Scholander, , Hammel, P.H.T., and Bradstreet, E. D. 1965. Sap pressure in vascular plants. Science 148:339–346.Google Scholar
13. Schwaegerle, K. E. 1983. A method for maintaining constant soil moisture availability for potted plants. Soil Sci. Soc. Am. J. 47:608–610.Google Scholar
14. Sikurajapathy, M., Cappy, J. J., and Gross, H. D. 1983. A method for inducing controlled moisture stress on seedlings. Agron. J. 75:840–843.CrossRefGoogle Scholar
15. Tingey, D. T. and Stockwell, C. 1977. Semipermeable membrane system for subjecting plants to water stress. Plant Physiol. 60:58–60.Google Scholar
16. Vaclavik, J. 1966. The maintaining of constant soil moisture levels (lower than maximum capillary capacity) in pot experiments. Biol. Plant. 8:80–85.Google Scholar
17. Waldron, L. J. and Manbeian, T. 1970. Soil moisture characteristics by osmosis with polyethylene glycol: a simple system with osmotic pressure data and some results. Soil Sci. 110(6)401–404.Google Scholar
18. Williams, J. and Shaykewich, C. F. 1969. An evaluation of polyethylene glycol (P.E.G.) 6000 and P.E.G. 20,000 in the osmotic control of soil water matric potential. Can. J. Soil Sci. 49:397–401.CrossRefGoogle Scholar
19. Wisbey, B. D., Black, T. A., and Copeman, R. J. 1976. Controlling soil water matric potential in root disease studies. Can. J. Bot. 55:825–830.Google Scholar
20. Zur, B. 1966. Osmotic control of the matric soil-water potential: I. soil-water system. Soil Sci. 102(6)394–398.Google Scholar