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Effects of Temperature and Water Potential on Germination of Horehound (Marrubium vulgare) Seeds from two Australian Localities

Published online by Cambridge University Press:  12 June 2017

Attila Lippai ,
Paula A. Smith ,
Terence V. Price ,
John Weiss  and
Christopher J. Lloyd
Attila Lippai
Affiliation:
School of Agriculture, La Trobe University. Bundoora. Vic., Australia 3083
Paula A. Smith
Affiliation:
School of Agriculture, La Trobe University. Bundoora. Vic., Australia 3083
Terence V. Price
Affiliation:
School of Agriculture, La Trobe University. Bundoora. Vic., Australia 3083
John Weiss
Affiliation:
Keith Turnbull Research Institute, Department of Conservation and Natural Resources, P.O. Box 48, Frankston, Vic., Australia 3199
Christopher J. Lloyd
Affiliation:
School of Statistics, La Trobe University
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Abstract

Horehound seed from Wyperfeld (Wyp90 and Wyp93) had optimum germination (98%) at constant 25 C and alternating 30/15 C at 0 MPa, while seed from Swift's Creek (SC93) had optimum germination at constant 25 to 27 C (84%) or alternating 25/15 C (95%). The Generalized Additive Models showed the effects of the three covariates (temperature, temperature difference and water potential) followed a smooth and regular pattern. Germination of SC93, Wyp90 and Wyp93 seed increased (P < 0.001) by 9.1, 6.1, and 11.6% for each degree increase in temperature difference but decreased (P < 0.001) with decreases in water potential by a factor of 4.1, 4.8, and 7.1 respectively, and ceased at −1.5 MPa. At constant temperatures the odds of germination were 27, 19, and 18% smaller for water potentials of 0, −0.25 and −0.5 MPa than when alternating temperatures varied by 15 C.

Keywords

Horehound, Marrubium vulgare ♯ MAQVULamiaceaepolyethylene glycolsmooth additive model
Type
Weed Biology and Ecology
Information
Weed Science , Volume 44 , Issue 1 , March 1996 , pp. 91 - 99
Copyright
Copyright © 1996 by the Weed Science Society of America 

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References

Literature Cited

1. Anon. 1976. The threat of weeds to bushland: A Victorian study. Land Use Project Committee of the Australian Institute of Agricultural Science, pp. 23–24. Inkata Press, Melbourne.Google Scholar
2. Anon. 1988. Horehound (Marrubium vulgare). Issues and Options. South Australian Animal and Plant Control Commission, Adelaide. 32 p.Google Scholar
3. Chambers, J. M. and Hastie, T. 1992. Statistical models in S. Wadsworth and Brookes/Cole, California. 608 p.Google Scholar
4. Egan, P. 1990. Germination of Horehound (Marrubium vulgare L.) seed. , La Trobe University, Bundoora, Victoria, Australia.Google Scholar
5. Everist, S. L. 1981. Poisonous plants of Australia. Second Edition, p. 382. Angus and Robertson, London.Google Scholar
6. Fulbright, T. E. 1988. Effects of temperature, water potential, and sodium chloride of Indiangrass germination. J. Range Manage. 41: 207–210.Google Scholar
7. Hastie, T. J. and Tibshirani, R. J. 1990. Generalized Additive Models. Chapman and Hall, London. 335 p.Google Scholar
8. Hyde-Wyatt, B. H. and Morris, D. I. 1975. Tasmanian weed handbook, p. 85. Tasmanian Department of Agriculture.Google Scholar
9. International Seed Testing Association. 1976. International rules for seed testing. Rules 1976. Seed Sci. and Technol. 4: 3–49.Google Scholar
10. Kiemnec, G. and Larson, L. 1991. Germination and root growth of two noxious weeds as affected by water and salt stresses. Weed Technol. 5: 612–615.CrossRefGoogle Scholar
11. Lippai, A. 1993. Different environmental effects on the germination of horehound (Marrubium vulgare L.). Graduate Diploma of Agricultural Science thesis, La Trobe University, Bundoora, Victoria, Australia.Google Scholar
12. Maguire, J.D. and Overland, A. 1959. Laboratory germination of seeds of weedy and native plants. Stations Circular 349. pp. 1–15. Washington Agricultural Experimental Stations.Google Scholar
13. Michael, 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
14. Parsons, W. T. and Cuthbertson, E. G. 1992. Noxious weeds of Australia. pp. 496–499. Inkata Press. Melbourne.Google Scholar
15. Sharma, M. L. 1976. Interaction of water potential and temperature effects on germination of three semi-arid plant species. Agron. J. 68: 390–394.CrossRefGoogle Scholar
16. Smith, P. A. 1991. Environmental factors influencing the germination of horehound (Marrubium vulgare L.). . La Trobe University. Bundoora, Victoria, Australia.Google Scholar
17. Stritzke, J. F. 1975. Germination characteristics and chemical control of horehound. J. Range Manage. 28: 225–226.Google Scholar
18. Tadmor, N. H., Cohen, Y., and Harpez, Y. 1969. Interactive effects of temperature and osmotic potential on the germination of range plants. Crop Sci. 9: 771–774.CrossRefGoogle Scholar
19. Weiss, J. and Sagliocco, J-L., 1994. Horehound. Marrubium vulgare—A Global perspective. Fourth Biennial Proclaimed Animal and Plant State Conference. Animal and Plant Control Commission. South Australia, pp. 39–43.Google Scholar
20. Young, J. A. and Evans, R. A. 1986. Germination of white horehound (Marrubium vulgare) seeds. Weed Sci. 34: 266–270.Google Scholar