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Interactions of temperature and dormancy-relieving compounds on the germination of weed seeds

Published online by Cambridge University Press:  19 September 2008

R. Carmona  and
A.J. Murdoch
R. Carmona
Affiliation:
Department of Agriculture, The University of Reading, Earley Gate, P.O. Box 236, Reading RG6 6AT, UK
A.J. Murdoch*
Affiliation:
Department of Agriculture, The University of Reading, Earley Gate, P.O. Box 236, Reading RG6 6AT, UK
*
*Correspondence
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Abstract

Dormant weed seeds were germinated at constant and alternating temperatures using five chemicals. Germination of Chenopodium album when expressed in normal equivalent deviates, increased linearly with the logarithm of chemical dose up to an optimal concentration. Ethephon (2-chloroethyl phosphonic acid) and sodium azide slightly stimulated germination of C. album seeds at 20°C while potassium nitrate, thiourea and azide each interacted positively with alternating temperatures (5°/25°C). Relief of Avena fatua dormancy by azide exhibited a positive interaction with cool constant temperatures (3–10°C), and chemicals had smaller or no effects at higher and alternating temperatures. No chemical mixture, including that of nitrate, thlourea, ethephon, azide and hydrogen peroxide, promoted more germination than azide on its own in A. fatua or nitrate together with ethephon in C. album. In C. album, this result arose largely because nitrate and azide antagonized each other in the presence of ethephon. Peroxide and thiourea together relieved this antagonism so that the fourth order interaction was positive. The negative interaction of nitrate, azide and ethephon in C. album was avoided in a sequential treatment with nitrate plus ethephon for seven days followed by sodium azide. Relief of dormancy by nitrate and ethephon was optimized at 67 mM nitrate with 1.4 mM ethephon for C. album at 20°C and 20 mM nitrate with 1.4 mM ethephon for A. fatua at 15°C. None of the chemicals used in this investigation stimulated the germination of Rumex crispus seeds. The results are discussed with respect to chemical control of soil seed banks.

Keywords

Avena fatua L.Chenopodium album L.chemicalsinteractionRumex crispus L.seed germinationtemperature
Type
Ecology
Information
Seed Science Research , Volume 5 , Issue 4 , December 1995 , pp. 227 - 236
Copyright
Copyright © Cambridge University Press 1995

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Footnotes

1

Present address: Departamento de Engenharia Agronomica, Universidade de Brasilia, CP 152958, 70910 Brasilia, D.F., Brazil

References

Adkins, S.W. and Adkins, S.L. (1994) Effect of potassium nitrate and ethephon on the fate of wild oat (Avena fatua) seed in soil. Weed Science 42, 353–357.Google Scholar
Adkins, S.W. and Ross, J.D. (1981) Studies in wild oat seed dormancy. 1 – The role of ethylene in dormancy breakage and germination of wild oat seeds (Avena fatua L.). Plant Physiology 67, 358–362.Google Scholar
Adkins, S.W., Simpson, G.M. and Naylor, J.M. (1984) The physiological basis of seed dormancy in Avena fatua III. Action of nitrogenous compounds. Physiologia Plantarum 60, 227–233.Google Scholar
Agenbag, G.A. and Villiers, O.T. (1989) The effect of nitrogen fertilizers on the germination and seedling emergence of wild oat (Avena fatua L.) seed in different soil types. Weed Research 29, 239–245.Google Scholar
Bewley, J.D. and Black, M. (1994) Seeds. Physiology of development and germination. Second Edition. New York, London, Plenum Press.Google Scholar
Chancellor, R.J., Parker, C. and Teferedegn, T. (1971) Stimulation of dormant weed seed germination by 2-chloro-ethylphosphonic acid. Pesticide Science 2, 35–37.Google Scholar
Cohn, M.A. (1989) Factors influencing the efficacy of dormancy-breaking chemicals, pp 261–267 in Taylorson, R.B. (Ed.) Recent advances in the development and germination of seeds. Proceedings of the third international workshop on seeds. Williamsburg, Virginia. New York, London, Plenum Press.Google Scholar
Cumming, B.G. (1963). The dependence of germination on photoperiod, light quality and temperature, in Chenopodium spp. Canadian Journal of Botany 41, 1211–1233.Google Scholar
Edwards, A. (1989) Venn diagrams for many sets. New Scientist 7, 51–56.Google Scholar
Egley, G.H. (1986) Stimulation of weed seed germination in soil. Reviews of Weed Science 2, 67–89.Google Scholar
Egley, G.H. and Dale, J.E. (1970) Ethylene, 2-chloro-ethylphosphonic acid, and witch weed germination. Weed Science 18, 586–589.CrossRefGoogle Scholar
Ellis, R.H., Hong, T.D. and Roberts, E.H. (1985) Handbook of Seed Technology for Genebanks. Volume II. Compendium of Specific Germination Information and Test Recommendations. International Board for Plant Genetic Resources, Rome, pp 211–667.Google Scholar
Fay, P.K. and Gorecki, R.S. (1978) Stimulating germination of dormant wild oat (Avena fatua) seed with sodium azide. Weed Science 26, 323–326.Google Scholar
Hou, J.Q. and Simpson, G.M. (1990). Phytochrome action and water status in seed germination of wild oats (Avena fatua). Canadian Journal of Botany 68, 1722–1727.CrossRefGoogle Scholar
Hurtt, W. and Taylorson, R.B. (1986) Chemical manipulation of weed emergence. Weed Research 26, 259–267.CrossRefGoogle Scholar
ISTA (1993) International rules for seed testing 1993. Seed Science and Technology 21, Supplement.Google Scholar
Mekki, M. and Leroux, G.D. (1991) False chamomile seed germination requirements and its enhancement by ethephon and nitrate. Weed Science 39, 385–389.Google Scholar
Murdoch, A.J. and Carmona, R. (1993) The implications of the annual dormancy cycle of buried weed seeds for novel methods of weed control. Proceedings of the Brighton Crop Protection Conference – Weeds, 329–334.Google Scholar
Murdoch, A.J. and Roberts, E.H. (1982) Biological and financial criteria of long-term control strategies for annual weeds. Proceedings of the British Crop Protection Conference–Weeds, 741–748.Google Scholar
Murdoch, A.J., Roberts, E.H. and Goedert, C.O. (1989) A model for germination responses to alternating temperatures. Annals of Botany 63, 97–111.Google Scholar
Olatoye, S.T. and Hall, M.A. (1973) Interaction of ethylene and light on dormant weed seeds. pp 233–250 in Heydecker, W. (Ed.) Seed ecology. Proceedings of the Nineteenth Easter School in Agricultural Science, University of Notingham. London, Butterworths.Google Scholar
Paterson, J.G., Boyd, W.J.R. and Goodchild, N.A. (1976) Effect of temperature and depth of burial on the persistence of seed of Avena fatua L. in Western Australia. Journal of Applied Ecology 13, 841–847.Google Scholar
Roberts, E.H. (1973) Oxidative processes and the control of germination. pp 189–216 in Heydecker, W. (Ed.) Seed ecology. Proceedings of the Nineteenth Easter School in Agricultural Science, University of Nottingham, 1972. London, Butterworths.Google Scholar
Roberts, E.H. and Benjamin, S.K. (1979) The interaction of light, nitrate and alternating temperature on the germination of Chenopodium album, Capsella bursa-pastoris and Poa annua before and after chilling. Seed Science and Technology 7, 379–392.Google Scholar
Roberts, E.H. and Smith, R.D. (1977). Dormancy and the pentose phosphate pathway. pp 385–411 in Khan, A.A. (Ed.) The physiology and biochemistry of seed dormancy and germination. Amsterdam, Elsevier/North Holland Biomedical Press.Google Scholar
Roberts, E.H., Murdoch, A.J. and Ellis, R.H. (1987) The interaction of environmental factors on seed dormancy. Proceedings of the British Crop Protection Conference – Weeds, 687–694.Google Scholar
Saini, H.S. and Spencer, M.S. (1987) Manipulation of seed nitrate content modulates the dormancy-breaking effect of ethylene on Chenopodium album seed. Canadian Journal of Botany 65, 876–878.Google Scholar
Saini, H.S., Bassi, P.K. and Spencer, M.S. (1986a) Interaction among ethephon, nitrate and after ripening on the release of dormancy of wild oat (Avena fatua) seed. Weed Science 34, 43–47.Google Scholar
Saini, H.S., Bassi, P.K. and Spencer, M.S. (1986b) Use of ethylene and nitrate to break dormancy of Common Lambsquarters (Chenopodium album). Weed Science 34, 502–506.CrossRefGoogle Scholar
Sexsmith, J.J. and Pittman, U.J. (1963) Effect of nitrogen fertilisers on germination and stand of wild oats. Weeds 11, 99–101.CrossRefGoogle Scholar
Simpson, G.M. (1990) Seed dormancy in grasses. Cambridge, Cambridge University Press.Google Scholar
Totterdell, S. and Roberts, E.H. (1980) Characteristics of alternating temperatures which stimulate loss of dormancy in seeds of Rumex obtusifolius L. and Rumex crispus L. Plant, Cell and Environment 3, 3–12.Google Scholar
Vincent, E.M. and Roberts, E.H. (1977) The interaction of light, nitrate and alternating temperature in promoting the germination of dormant seeds of common weed species. Seed Science and Technology 5, 659–670.Google Scholar