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Phyton Vol. 56/2 E-Book S 293-301
The Impact of Aqueous Extracts of Stinkwort (Dittrichia graveolens
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In: Phyton 56, Fasc. 2 (2016): S. 293-301 DOI: 10.12905/0380.phyton56(2)2016-0293


The Impact of Aqueous Extracts of Stinkwort (Dittrichia graveolens) and False Yellowhead (D. viscosa) on Germination of Selected Plant Species

By

Mateja Grašic, Sabina Anžlovar and Simona Strgulc Krajšek

Received June 6, 2016

Accepted November 2, 2016

Key words: Dittrichia graveolens, Dittrichia viscosa, Triticum aestivum, Ambrosia artemisiifolia, allelopathy, germination, invasive species.

Summary
Grašic? M., Anžlovar S. & Strgulc Krajšek S. 2016. The impact of aqueous extracts of stinkwort (Dittrichia gravelolens) and false yellowhead (D. viscosa) on germination of selected plant species. – Phyton (Horn, Austria) 56 (2): 293–301, with 3 figures.

In this study, we tested the effect of aqueous extracts of stinkwort (Dittrichia graveolens (L.) Greuter) and false yellowhead (D. viscosa (L.) Greuter) on Germination of wheat (Triticum aestivum L. em. Fiori & Paol.) and common ragweed (Ambrosia artemisiifolia L.) seeds, which were sown on filter paper in Petri dishes. Both aqueous extracts proved to be effective against the two tested species, as they delayed germination and reduced the number of germinated seeds. Seeds’ Germination rate was decreasing in accordance with increasing concentration of aqueous extract of both species. However, aqueous extract of stinkwort was slightly more effective.
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