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False Chamomile Seed Germination Requirements and its Enhancement by Ethephon and Nitrate

Published online by Cambridge University Press:  12 June 2017

Mounir Mekki  and
Gilles D. Leroux
Mounir Mekki
Affiliation:
Dep. Phytol., Univ. LAVAL, STE-FOY (Québec), CANADA G1K 7P4
Gilles D. Leroux
Affiliation:
Dep. Phytol., Univ. LAVAL, STE-FOY (Québec), CANADA G1K 7P4
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Abstract

Dormant weed seeds are difficult to kill and, with the exception of soil sterilization methods, current weed control techniques are not effective against dormant weed seeds. This study was conducted to investigate the effects of temperature, light, soil moisture, burial depth, ethephon, and potassium nitrate (KNO3), and their interactions on the germination of false chamomile seeds under controlled conditions. False chamomile was photoblastic and thermophilic and germinated rapidly within the first 4 days of incubation under all conditions. Regression analysis indicated that ethephon and KNO3 had quadratic effects on false chamomile germination. Ethephon enhanced germination more than KNO3. There was a linear reduction in germination with increased storage time, and it is projected that zero germination should occur after 9 yr of storage at room temperature. Soil moisture had a positive linear effect and a positive interaction with ethephon on false chamomile germination. Very little germination occurred when seeds were buried 5 cm deep even with high soil moisture.

Keywords

Ethephon(2-chloroethyl)phosphonic acidfalse chamomileMatricaria maritima ♯ MATMATemperaturefield capacityburial depthlight
Type
Weed Biology and Ecology
Information
Weed Science , Volume 39 , Issue 3 , September 1991 , pp. 385 - 389
Copyright
Copyright © 1991 by the Weed Science Society of America 

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References

Literature Cited

1. Andersen, R. N. 1968. Germination and establishment of weeds for experimental purposes. Pages 343–345. W. F. Humphrey Press, Inc., Geneva, NY.Google Scholar
2. Bartlett, M. S. 1937. Some examples of statistical methods of research in agriculture and applied biology. J. R. Stat. Soc. Suppl. 4:137–183.CrossRefGoogle Scholar
3. Bebawi, F. F. and Eplee, R. E. 1986. Efficacy of ethylene as a germination stimulant of Striga hermonthica seed. Weed Sci. 34:694–698.Google Scholar
4. Conn, J. S. and Farris, M. L. 1987. Seed dormancy of 17 weed species after 21 months in Alaska. Weed Sci. 35:524–529.Google Scholar
5. Egley, G. H. and Duke, S. O. 1985. Physiology of weed seed dormancy and germination. Pages 27–64 in Duke, S. O., ed. Weed Physiol. Volume 1. Reproduction and Ecophysiology. CRC Press, Boca Raton, FL.Google Scholar
6. Ellis, M. and Kay, Q.O.N. 1975. Genetic variation in herbicide resistance in scentless mayweed [Tripleurospermum inodorum (L.) Schultz Bip.] I. Differences between populations in response to MCPA. Weed Res. 5:307–315.Google Scholar
7. Evans, R. A., Young, J. A., and Hawkes, R. 1979. Germination characteristics of Italian thistle (Carduus pycnocephalus) and Slender-flower thistle (Carduus tennuiflorusj). Weed Sci. 27:327–332.Google Scholar
8. Hanf, M. 1983. The arable weeds of Europe with their seedlings and seeds. BASF, United Kingdom Limited, Lady Lane, Hadleigh, Suffolk.Google Scholar
9. Lemieux, C., Larouche, A., Légère, A., Deshênes, J-M., and Rioux, R. 1988. Weed survey in Québec cereal crops [French]. Agriculture Canada. Research Station, Sainte-Foy (Québec). 84 p.Google Scholar
10. Loercher, L. 1974. Persistence of red light induction in lettuce seeds of varying hydration. Plant Physiol. 53:503–506.Google Scholar
11. Lonchamp, J. P. and Morisot, D. 1984. Effects of burial under controlled condition on the capacity of weeds germination. [French]. VIIth Coll. Intern. Ecol. Biol. Syst. Mauvaises Herbes, Paris. 1:29–35.Google Scholar
12. Lonchamp, J. P. and Barralis, G. 1983. The effects of low water potential on germinating ability of seeds of Alopecurus myosuroides Huds. and Matricaria perforota Mérat. [French]. Agronomie 3(5):435–441.Google Scholar
13. Roberts, H. A. and Feast, P. M. 1973. Emergence and longevity of seeds of annual weeds in cultivated and undisturbed soil. J. Appl. Ecol. 10:133–143.Google Scholar
14. Saini, H. S., Bassi, P. K., Goudey, J. S., and Spencer, M. S. 1987. Breakage of seed dormancy of field pennycress (Thlaspi arvense) by growth regulators, nitrate, and environmental factors. Weed Sci. 35:802–806.CrossRefGoogle Scholar
15. Saini, H. S., Bassi, P. K., and Spencer, M. S. 1985. Interactions among ethephon, nitrate, and afterripening in the release of dormancy of wild oat (Avena fatua) seed. Weed Sci. 34:43–47.Google Scholar
16. Saini, H. S., Bassi, P. K., and Spencer, M. S. 1986. Use of ethylene and nitrate to break seed dormancy of common lambsquarters (Chenopodium album). Weed Sci. 34:502–506.Google Scholar
17. Samimy, C. and Khan, A. A. 1983. Secondary dormancy, growth regulator effects, and embryo growth potential in curly dock (Rumex crispus) seeds. Weed Sci. 31:153–158.CrossRefGoogle Scholar
18. Taylorson, R. B. 1979. Response of weed seeds to ethylene and related hydrocarbons. Weed Sci. 27:7–10.CrossRefGoogle Scholar
19. Thomas, A. G. 1985. Weed survey system used in Saskatchewan for cereal and oilseed crops. Weed Sci. 33:34–43.Google Scholar
20. Toole, V. K. 1972. Light and temperature control of germination in Agropyron smithii seeds. Plant Cell Physiol. 17:1263–1272.Google Scholar
21. Zamora, D. L., Thill, D. C., and Eplee, R. E. 1989. An eradication plan for plant invasions. Weed Technol. 3:2–12.CrossRefGoogle Scholar