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Phytotoxic effect of allelochemicals, herbicides and Acacia melanoxylon R. Br. on physiological processes in four plant species

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Phytotoxic effect of allelochemicals, herbicides and Acacia melanoxylon R. Br. on physiological processes in four plant species

Hussain, Muhammad Iftikhar
 
DATE : 2011-02-17
UNIVERSAL IDENTIFIER : http://hdl.handle.net/11093/286
UNESCO SUBJECT : 2417.19 Fisiología Vegetal
DOCUMENT TYPE : doctoralThesis

ABSTRACT :

Plants may favorably or adverseley affect other plants trough alleclochemicals which may be released directly or indirectly into surrounding environment. Acacia melanoxiylon R. Br. is an invader in Galician forests with well-documented allelpathic tendencies that have generallly been ascribed to its most abundant secondary metabolites present in flowers an phyllodes. Laboratory bioassays were conducted to test allelopathic potential of aqueous extract of A. melanoxilan flowers and phyllodes on germination, seedling growth and radicle length of native species. Inhibition of seed germination of plant species showed a species-spedific and dose-dependent response with highest inhibition occurring at concentration of 100% flowers....

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