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Competition between Canada thistle and winter wheat

Published online by Cambridge University Press:  20 January 2017

A. P. Mamolos  and
K. L. Kalburtji
A. P. Mamolos
Affiliation:
Laboratory of Ecology and Environmental Protection, Aristotle University of Thessaloniki, Faculty of Agriculture, 540 06 Thessaloniki, Greece
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Abstract

This study was conducted to determine the effect of Canada thistle density and the direct and indirect effects of Canada thistle aboveground biomass and N concentration on wheat yield. A 4-yr experiment (1991–1995) with four Canada thistle densities (0, 4, 16, 64 plants m−2) was conducted. Initial statistical analysis showed a significant effect of Canada thistle density on wheat yield. Multiple regression and path analysis showed that the main factor causing wheat yield loss was Canada thistle N concentration. The second factor affecting wheat yield was Canada thistle biomass, and the last was Canada thistle density.

Keywords

Canada thistle, Cirsium arvense (L.) Scop. CIRARwinter wheat, Triticum aestivum (L.) Em. Tell. ‘Yecora’Weed densityyield loss predictionbiomass reductioninterferencepath correlation analysis

Information

Type
Research Article
Information
Weed Science , Volume 49 , Issue 6 , December 2001 , pp. 755 - 759
Copyright
Copyright © Weed Science Society of America 

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