Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-25T00:35:25.768Z Has data issue: false hasContentIssue false
  • English
  • Français

Factors affecting turnipweed (Rapistrum rugosum) seed germination in southern Australia

Published online by Cambridge University Press:  20 January 2017

Bhagirath S. Chauhan ,
Gurjeet Gill  and
Christopher Preston
Gurjeet Gill
Affiliation:
School of Agriculture, Food and Wine, The University of Adelaide, Roseworthy Campus, South Australia, 5371, Australia
Christopher Preston
Affiliation:
School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, South Australia, 5064, Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

Experiments were conducted on the seed of turnipweed collected from southern Australia. Seed germinated over a range of temperatures (25/15, 20/12, and 15/9 C) under both light/dark and dark conditions. Regardless of the light condition, germination of naked seed (63 to 88%) was greater than the seed in intact silique (0 to 13%). Seed germination was relatively unaffected (greater than 60%) at a low level of salinity (80 mM NaCl), and some germination occurred even at 160 mM NaCl (11%). Seed germination decreased as osmotic potential decreased from 0 to −1.0 MPa; however, some germination occurred even at an osmotic potential of −1.0 MPa (22%). Seed germination was greater than 76% over a pH range of 4 to 10. Seedling emergence of turnipweed was greater (60%) for seed buried at 1 cm than on the soil surface (23%). No seedlings emerged from seed buried at 5 cm. Information gained in this study will be important in developing a better understanding of the requirements for turnipweed germination and emergence.

Keywords

Turnipweed, Rapistrum rugosum (L.) All. RASRUOsmotic stresssalt stresspHseedling emergenceseed depthseed type
Type
Research Article
Information
Weed Science , Volume 54 , Issue 6 , December 2006 , pp. 1032 - 1036
Copyright
Copyright © 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

Adkins, S. W., Wills, D., Boersma, M., Walker, S. R., Robinson, G., McLeod, R. J., and Einam, J. P. 1997. Weeds resistant to chlorsulfuron and atrazine from the north-east grain region of Australia. Weed Res. 37:343–349.Google Scholar
Benvenuti, S., Macchia, M., and Miele, S. 2001. Quantitative analysis of emergence of seedlings from buried weed seeds with increasing soil depth. Weed Sci. 49:528–535.Google Scholar
Chachalis, D. and Reddy, K. N. 2000. Factors affecting Campsis radicans seed germination and seedling emergence. Weed Sci. 48:212–216.CrossRefGoogle Scholar
Chauhan, B. S., Gill, G., and Preston, C. 2006a. African mustard (Brassica tournefortii) germination in southern Australia. Weed Sci. 54:891–897.Google Scholar
Chauhan, B. S., Gill, G., and Preston, C. 2006b. Seedling recruitment pattern and depth of recruitment of 10 weed species in minimum tillage and no-till seeding systems. Weed Sci. 54:658–668.CrossRefGoogle Scholar
Cheam, A. H. and Code, G. R. 1995. The biology of Australian weeds, 24: Raphanus raphanistrum L. Plant Prot. Q. 10:2–13.Google Scholar
Cousens, R., Armas, G., and Baweja, R. 1994. Germination of Rapistrum rugosum (L.) All. from New South Wales, Australia. Weed Res. 34:127–135.Google Scholar
Genstat 5 Committee. 1993. Genstat 5, Release 3, Reference Manual. Oxford, Great Britain: Clarendon Press. Pp 816.Google Scholar
Koger, C. H., Reddy, K. N., and Poston, D. H. 2004. Factors affecting seed germination, seedling emergence, and survival of texasweed (Caperonia palustris). Weed Sci. 52:989–995.CrossRefGoogle Scholar
Martin, R. J. and McMillan, M. G. 1984. Some results of a weed survey in northern New South Wales. Aust. Weeds. 3:115–116.Google Scholar
Mennan, H. and Ngouajio, M. 2006. Seasonal cycles in germination and seedling emergence of summer and winter populations of catchweed bedstraw (Galium aparine) and wild mustard (Brassica kaber). Weed Sci. 54:114–120.Google Scholar
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
Mulligan, G. A. and Bailey, L. G. 1975. The biology of Canadian weeds, 8: Sinapis arvensis L. Can. J. Plant Sci. 55:171–183.Google Scholar
Ray, J., Creamer, R., Schroeder, J., and Murray, L. 2005. Moisture and temperature requirements for London rocket (Sisymbrium irio) emergence. Weed Sci. 53:187–192.CrossRefGoogle Scholar
Rengasamy, P. 2002. Transient salinity and subsoil constraints to dryland farming in Australian sodic soils: an overview. Aust. J. Exp. Agric. 42:351–361.Google Scholar
Taylorson, R. B. 1987. Environmental and chemical manipulation of weed seed dormancy. Rev. Weed Sci. 3:135–154.Google Scholar
Whish, J. P. M., Sindel, B. M., Jessop, R. S., and Felton, W. L. 2002. The effect of row spacing and weed density on yield loss of chickpea. Aust. J. Agric. Res. 53:1335–1340.Google Scholar
Wilson, B. J. 1981. Effect of time of seedling emergence on seed production and time to flowering of eight weeds. Pages 35–38 in Proceedings of the Sixth Australian Weed Conference. Brisbane, Australia: Weed Society of Queensland.Google Scholar