Hostname: page-component-77c89778f8-gvh9x Total loading time: 0 Render date: 2024-07-16T15:49:56.553Z Has data issue: false hasContentIssue false
  • English
  • Français

Germination and Root Growth of Two Noxious Weeds as Affected by Water and Salt Stresses

Published online by Cambridge University Press:  12 June 2017

Gary Kiemnec  and
Larry Larson
Gary Kiemnec
Affiliation:
Dep. Crop and Soil Science, Oregon State Univ., Corvallis, OR 97331
Larry Larson
Affiliation:
Dep. Range-land Res., Oregon State Univ., Corvallis, OR 97331
Get access Rights & Permissions [Opens in a new window]

Abstract

Hoary cress germination decreased with lower osmotic potential. Knapweed germination was greatest at 0.0 and −0.5 MPa of osmotic potential. Salinity increases up to an electrical conductivity (EC) of 12 dS m-1 had no effect on germination of either species. Hoary cress and knapweed root growth were reduced by decreases in osmotic potential. Hoary cress root growth was not affected by increasing salinity up to an EC of 12 dS m-1. Knapweed root growth was reduced by the initial increase in salinity (4 dS m-1), but not by higher salt concentrations.

Keywords

Diffuse knapweed, Centaurea diffusa Lam. ♯ CENDIhoary cress, Cardaria draba (L.) Desv. CADDROsmotic potential
Type
Research
Information
Weed Technology , Volume 5 , Issue 3 , September 1991 , pp. 612 - 615
Copyright
Copyright © 1991 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. Bozcuk, S. 1981. Effects of kinetin and salinity on germination of tomato, barley, and cotton seeds. Ann. Bot. 48:81–84.CrossRefGoogle Scholar
2. Choudhuri, G. N. 1968. Effect of soil salinity on germination and survival of some steppe plants in Washington. Ecology 49:465–471.Google Scholar
3. Cluff, G. J., and Roundy, B. A. 1988. Germination responses of desert saltgrass to temperature and osmotic potential. J. Range Manage. 41: 150–153.Google Scholar
4. Eddleman, L. E., and Romo, J. T. 1988. Spotted knapweed germination response to stratification, temperature, and water stress. Can. J. Bot. 66: 653–657.CrossRefGoogle Scholar
5. Everitt, J. H. 1983. Effects of single salt solutions and pH on seed germination of two native range grasses. J. Rio Grande Valley Hortic. Soc. 36:23–38.Google Scholar
6. Flowers, T. J., Haijibagheri, M. A., and Clipson, N.J.W. 1986. Halophytes. Q. Rev. Biol. 61:313–337.Google Scholar
7. Francois, L. E. 1988. Salinity effects on three turf bermudagrasses. Hortscience 24:706–708.Google Scholar
8. Hardegree, S. P., and Emmerich, W. E. 1990. Effect of polyethylene glycol exclusion on the water potential of solution-saturated filter paper. Plant Physiol. 92:463–466.Google Scholar
9. Harper, J. L. 1983. The recruitment of seedling populations. p. 111–147 in Population Biology of Plants. Academic Press, Inc. London.Google Scholar
10. Harper, J. L., and Benton, R. A. 1966. The behaviour of seeds in soil, part 2. The germination of seeds on the surface of a water supplying substrata. J. Ecol. 54:151–166.Google Scholar
11. Michel, B. E. 1983. Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol. 72:66–70.Google Scholar
12. Potter, R. L., Ueckert, D. N., Peterson, J. L., and McFarland, M. L. 1986. Germination of fourwing saltbush seeds: Interaction of temperature, osmotic potential, and pH. J. Range Manage. 39:43–46.Google Scholar
13. Rahman, M., and Ungar, I. A. 1990. The effect of salinity on seed germination and seedling growth of Echinochloa crus-galli . Ohio J. Sci. 90:13–15.Google Scholar
14. Richards, L. A. 1954. Diagnosis and improvement of saline and alkali soils. USDA Agric. Handb. 60 U.S. Government Printing Office, Washington, DC.Google Scholar
15. Romo, J. T., and Haferkamp, M. R. 1987. Forage kochia germination response to temperature, water stress, and specific ions. Agron. J. 79: 27–30.CrossRefGoogle Scholar
16. Roundy, B. A., Evans, R. A., and Young, J. A. 1984. Surface soil and seedbed ecology in salt-desert plant communities. p. 66–74 in Tiedemann, A. R., McArthur, E. D., Stutz, H. C., Stevens, R., and Johnson, K. L., compilers. Proceedings–symposium on the biology of Atriplex and related chenopods; 1983. May 2–6; Prove, UT. Gen. Tech. Rep. INT-172, USDA, Forest Serv. Google Scholar
17. Roundy, B. A., Young, J. A., and Evans, R. A. 1985. Germination of basin wildrye and tall wheatgrass in relation to osmotic and matric potential. Agron. J. 77:129–135.Google Scholar
18. Sharma, M. L. 1973. Simulation of drought and its effect on germination of five pasture species, Agron. J. 65:982–987.Google Scholar
19. Ungar, I. A. 1978. Halophyte seed germination. Bot. Rev. 44:233–264.Google Scholar
20. Vinizky, I., and Ray, D. T. 1988. Germination of guar seed under salt and temperature stress. J. Am. Soc. Hortic. Sci. 113:437–440.Google Scholar
21. Wannamaker, M. J., and Pike, L. M. 1987. Onion responses to various salinity levels. J. Am. Soc. Hortic. Sci. 112:49–52.Google Scholar
22. Watson, A. K., and Renney, A. J. 1974. The biology of Canadian weeds. 6. Centaurea diffusa and C. maculosa . Can. J. Plant Sci. 54: 687–701.Google Scholar