Allelopathic properties of knotweed rhizome extracts
2008
Vrchotova, N.,Akademie Ved, Ceske Budejovice (Czech Republic). Ustav Systemove Biologie a Ekologie | Sera, B.,Akademie Ved, Ceske Budejovice (Czech Republic). Ustav Systemove Biologie a Ekologie
Our objective was to determine which rhizome extract - from Japanese knotweed, Giant knotweed or Bohemian knotweed - has the most significant inhibition effect on germinated seeds of white mustard. The seeds were incubated with the extracts for two days under laboratory conditions. We monitored differences in the number of germinated seeds, length of radicles, hypocotyls and root/shoot ratio between control and experimental seeds. Inhibitory effect of extracts from dried knotweed rhizomes was confirmed, but without differences among the tested species. A higher allelopathic effect was revealed in the case of extracts from aboveground parts.
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