Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-24T06:42:04.658Z Has data issue: false hasContentIssue false
  • English
  • Français

Loss in Yield of Rapeseed (Brassica napus, B. campestris) Caused by Perennial Sowthistle (Sonchus arvensis) in Saskatchewan and Manitoba

Published online by Cambridge University Press:  12 June 2017

Diether P. Peschken ,
A. Gordon Thomas  and
Robin F. Wise
Diether P. Peschken
Affiliation:
Agric. Canada Res. Stn., Regina, Saskatchewan S4P 3A2, Canada
A. Gordon Thomas
Affiliation:
Agric. Canada Res. Stn., Regina, Saskatchewan S4P 3A2, Canada
Robin F. Wise
Affiliation:
Agric. Canada Res. Stn., Regina, Saskatchewan S4P 3A2, Canada
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted in 1979 and 1980 to determine yield losses caused by perennial sowthistle (Sonchus arvensis L. # SONAR) in rapeseed (Brassica napus L., B. campestris L.) fields in Saskatchewan and Manitoba. The relationship between percentage yield loss and density of perennial sowthistle was expressed by the linear regression equation y = −3.81 + 13.76 rdx. Weed survey data indicated that perennial sowthistle occurred in 39% of the rapeseed fields but infested only 7% of the hectares surveyed. Using both the survey data and the yield loss equation, the average annual loss in rapeseed yield was estimated to be 9.4 million kg in Saskatchewan and 6.1 million kg in Manitoba, with a value of 2.6 million and 1.7 million dollars (Cdn.), respectively. Perennial sowthistle occurs with a similar frequency and density in other crops so that the total loss from this weed would be much greater.

Keywords

Weed surveyseconomic losscompetitionSONAR
Type
Research Article
Information
Weed Science , Volume 31 , Issue 5 , September 1983 , pp. 740 - 744
Copyright
Copyright © 1983 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. Adolphe, D. 1980. Canola. Canada's rapeseed crop. Canola Council of Canada. Publ. 5:6. Rev. ed. Winnipeg. 39.Google Scholar
2. Anonymous. 1979. Monthly Record. Environment Canada. Meteorological observations in western Canada. V. 64. No. 8. Part I. Downsview, Ontario. 115.Google Scholar
3. Anonymous. 1981. Guide to weed control in Alberta. Part 1. Chemical. Alberta Agric., Edmonton. 170.Google Scholar
4. Anonymous. 1982. Chemical weed control in cereal, oilseed and pulse crops. Saskatchewan Agric., Regina. 40.Google Scholar
5. Anonymous. 1982. Guide to chemical weed control. Manitoba Agric., Winnipeg. Agdex 641. 101.Google Scholar
6. Canada Soil Survey Committee, Subcommittee on Soil Classification. 1978. The Canadian System of Soil Classification. Can. Dep. Agric. Publ. 1646. Ottawa. 164.Google Scholar
7. Derscheid, L. A. and Parker, K. 1972. Thistles. Canada thistle, perennial sowthistle. South Dakota State Univ. Ext. Serv. Fact Sheet 450. 4.Google Scholar
8. Dew, D. A. 1972. An index of competition for estimating crop losses due to weeds. Can. J. Plant Sci. 52:921–927.Google Scholar
9. Dew, D. A. 1981. Survey of weeds in Alberta. Res. Stn., Agric. Canada, Lacombe, Alberta. 157.Google Scholar
10. Dexter, A. G., Nalewaja, J. D., Rasmusson, D. D., and Buchli, J. 1981. Survey of wild oats and other weeds in North Dakota. 1978 and 1979. North Dakota Agric. Ext. Serv. Res. Rept. 79. 80.Google Scholar
11. Frankton, C. and Mulligan, G. A. 1970. Weeds of Canada. Canada Dep. Agric. Publ. 948. Ottawa. 217.Google Scholar
12. Friesen, G. and Shebeski, L. H. 1960. Economic losses caused by weed competition in Manitoba grain fields. I. Weed species, their relative abundance and their effect on crop yield. Can. J. Plant Sci. 40:457–467.Google Scholar
13. Looman, J. and Best, K. F. 1979. Budd's Flora of the Canadian Prairie Provinces. Agric. Canada Publ. 1662. Ottawa. 863.Google Scholar
14. O'Sullivan, P. A., Kossatz, V. C., Weiss, G. M., and Dew, D. A. 1982. An approach to estimating yield loss of barley due to Canada thistle. Can. J. Plant Sci. 62:725–731.CrossRefGoogle Scholar
15. Reed, C. E. 1970. Selected Weeds of the United States. Agric. Handb. No. 366. U.S.D.A., Washington. 463.Google Scholar
16. Shashkov, V. P., Kokmakov., P.P., Volkov, E. E., and Trifanova, L. F. 1977. The influence of rhizomatous weeds in spring weed crops on the utilization of nitrogen, phosphorus and potassium. Agrokhimiya 14:57–59. [Abstr. in Weed Abstracts. 26. No. 3373 (1977)].Google Scholar
17. Stevens, O. A. 1924. Perennial sowthistle, growth and reproduction. North Dakota Agric. Exp. Stn. Bull. 191. 44.Google Scholar
18. Thomas, A. G. 1976. Weed survey of cultivated land in Saskatchewan. Weed Survey Series, Publ. 76-1, Agric. Canada, Regina. 93.Google Scholar
19. Thomas, A. G. 1977. Weed survey of cultivated land in Saskatchewan. Weed Survey Series, Publ. 77-1, Agric. Canada, Regina. 103.Google Scholar
20. Thomas, A. G. 1978. Weed survey of cultivated land in Saskatchewan. Weed Survey Series, Publ. 78-2, Agric. Canada, Regina. 113.Google Scholar
21. Thomas, A. G. 1978. Weed survey of cultivated land in Manitoba. Weed Survey Series, Publ. 78-3, Agric. Canada, Regina. 109.Google Scholar
22. Thomas, A. G. 1979. Weed survey of cultivated land in Saskatchewan. Weed Survey Series, Publ. 79-2, Agric. Canada, Regina. 139.Google Scholar
23. Thomas, A. G. 1979. Weed survey of cultivated land in Manitoba. Weed Survey Series, Publ. 79-3, Agric. Canada, Regina. 123.Google Scholar
24. Thomas, A. G. and Wise, R. 1981. Weed survey of cultivated land in Manitoba. Weed Survey Series, Publ. 82-1, Agric. Canada, Regina. 124.Google Scholar