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Competition between Canada Thistle [ Cirsium arvense (L.) Scop.] and Faba Bean ( Vicia faba L.)
Author(s) -
Kalburtji K. L.,
Mamolos A. P.
Publication year - 2001
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1046/j.1439-037x.2001.00484.x
Subject(s) - cirsium arvense , thistle , vicia faba , agronomy , biology , competition (biology) , weed , yield (engineering) , biomass (ecology) , ecology , materials science , metallurgy
This study was conducted to investigate whether density, above‐ground biomass and nitrogen (N) concentration of Cirsium arvense (L.) Scop. cause serious reductions in faba bean ( Vicia faba L.) yield. A 2‐year field experiment (1991–93) with four Cirsium densities (0, 4, 16, 64 plants m –2 ) was carried out. Statistical analysis showed a significant effect of Cirsium density on faba bean yield. Multiple regression analysis showed that the main factors causing faba bean yield losses were the density and above‐ground biomass of Cirsium . The results of this study demonstrate that Cirsium competition reduces faba bean yield. The mean faba bean yield losses over the 2 years were 10, 12 and 8% for above‐ground biomass, seed and stem, respectively, for a Cirsium density of 16 plants m –2 .