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Regeneration of Canada Thistle (Cirsium arvense) from Intact Roots and Root Fragments at Different Soil Depths

  • Mette Goul Thomsen (a1) (a2) (a3), Lars-Olav Brandsæter (a1) (a3) and Haldor Fykse (a1)


In the present field study, the capability of Canada thistle to develop shoots from intact roots and root fragments at different soil depths was studied. The experiments were performed on four sites with high-density Canada thistle, with three or four replications per treatment. At each site, the soil in the plots was removed layer by layer (to 30 or 40 cm, depending on the site), within a 1 by 1-m quadrat, and spread out on a plastic sheet. All roots and other plant parts were removed, and the soil was either replaced without any root material (two sites), or the roots of the thistles were cut into 10-cm-long fragments and replaced into the source holes (two sites). The measured variables were shoot number and biomass. The number of shoots of Canada thistle decreased with increasing depth (P < 0.001) and increased with time. Additionally, the two factors interacted (P < 0.001) such that shoot development was slower from greater depths. Roots from ≤ 20 cm depth produced higher biomasses than did roots from below 20 cm depth. Replacement of root fragments did not affect the amount of biomass produced. It was concluded that the intact root system contributed considerably more to the total biomass produced by Canada thistle than did the root fragments in the upper soil layers.


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Bacher, S. H., Heizmann, A., and Nentwig, W. 1997. Problemunkräuter in ökologischen Ausgleichsflächen im Ackerbau. Agrarforschung 4: 9194 [In German]
Bàrberi, P. 2002. Weed management in organic agriculture: are we addressing the right issues? Weed Res. 42: 177193.
Brandsæter, L. O., Bakken, A. K., Mangerud, K., Riley, H., Eltun, R., and Fykse, H. 2011. Effects of tractor weight, wheel placement and depth of ploughing on the infestation with perennial weeds in organic farmed cereals. Eur. J. Agron. 34: 239246.
Brandsæter, L. O., Thomsen, M. G., Wærnhus, K., and Fykse, H. 2012. Effects of repeated clover undersowing in spring cereals and stubble treatments in autumn on Elymus repens, Sonchus arvensis and Cirsium arvense . Crop Prot. 32: 104110.
Cormack, W. F. 1999. Testing a stockless arable organic rotation on a fertile soil. Pp. 115123 in Olesen, J. E., Eltun, R., Gooding, M. J., Jensen, E. Steen., and Köpke, U., eds. Designing and Testing Crop Rotation for Organic Farming: Proceedings from an International Workshop. DARCOF Report 1. Foulum, Denmark: Danish Research Centre for Organic Farming.
Dock-Gustavsson, A-M. 1997. Growth and regenerative capacity of plants of Cirsium arvense . Weed Res. 37: 229236.
Fykse, H. 1977. Untersuchungen über Sonchus arvensis L., Cirsium arvense (L.) Scop. und Tussilago farfara L. Meldinger 56 (27), 22 p.
Graglia, E., Melander, B., and Jensen, R. K. 2006. Mechanical and cultural strategies to control Cirsium arvense in organic arable cropping systems. Weed Res. 46: 304312.
Gruber, S. and Claupein, W. 2009. Effect of tillage intensity on weed infestation in organic farming. Soil Tillage Res. 105: 104111.
Hettwer, U. and Gerowitt, B. 2004. An investigation of genetic variation in Cirsium arvense field patches. Weed Res. 44: 289297.
Håkansson, S. 2003. Weeds and Weed Management on Arable Land: An Ecological Approach. Wallingford, UK: CABI. 274 p.
Nadeau, L. B. and Vanden Born, W. H. 1989. The root system of Canada thistle. Can. J. Plant Sci. 69: 11991206.
Niederstrasser, J. and Gerowitt, B. 2008. Studies on the response of root fragment of Cirsium arvense on dryness. J. Plant Dis. Prot. 21 (SI):369372.
Nkurunziza, L. and Streibig, J. 2011. Carbohydrate dynamics in roots and rhizomes of Cirsium arvense and Tussilago farfara . Weed Res. 51: 461468.
Norwegian Meteorological Institute 2012,Østlandet/klima.sommer.html
Salonen, J., Hyvönen, T., and Jalli, H. 2001. Weeds in spring cereal fields in Finland—a third survey. Agric. Food Sci. Finl. 10: 347364.
Sciegienka, J. K., Keren, E. N., and Menalled, F. D. 2011. Impact of root fragment dimension, weight, burial depth, and water regime on Cirsium arvense emergence and growth. Can. J. Plant Sci. 91: 10271036.
Thomsen, M. G., Brandsæter, L. O., and Fykse, H. 2011. Sensitivity of Cirsium arvense to simulated mechanical treatment and competition. Acta Agric. Scand. Sect. B Soil Plant Sci. 61: 693700.
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