Biological-Control Herbivores May Increase Competitive Ability of the Noxious Weed Centaurea maculosa
نویسندگان
چکیده
منابع مشابه
Simulated Warming Differentially Affects the Growth and Competitive Ability of Centaurea maculosa Populations from Home and Introduced Ranges
Climate warming may drive invasions by exotic plants, thereby raising concerns over the risks of invasive plants. However, little is known about how climate warming influences the growth and competitive ability of exotic plants from their home and introduced ranges. We conducted a common garden experiment with an invasive plant Centaurea maculosa and a native plant Poa pratensis, in which a mix...
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Cantaurea maculosa, the spotted knapweed, is a common wild plant, aqueous extracts of which demonstrate antibacterial activity against gram-positive and gram-negative bacteria. Of 13 species of Centaurea screened for antibacterial activity by Osborn (1943), only three yielded extracts that were inhibitory to the growth of Staphylococcus aureus and none was active against Escherichia coli. Our C...
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abstract in order to evaluate of yield and yield components of eight wheat cultivars against flix weed (descurainia sophia), an experiment was conducted using a factorial arrangement of treatments in a randomized complete block design with four replications during 2003-2004 growing season in varamin region. the wheat cultivars were tabasi, roshan, karaj2, azadi, niknejad, mahdavi, shiraz and pi...
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15 صفحه اولShift in cytotype frequency and niche space in the invasive plant Centaurea maculosa.
Polyploidy is often assumed to increase the spread and thus the success of alien plant species, but few empirical studies exist. We tested this hypothesis with Centaurea maculosa Lam., a species native to Europe and introduced into North America approximately 120 years ago where it became highly invasive. We analyzed the ploidy level of more than 2000 plants from 93 native and 48 invasive C. ma...
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ژورنال
عنوان ژورنال: Ecology
سال: 1999
ISSN: 0012-9658
DOI: 10.2307/177067