Use this url to cite publication: https://hdl.handle.net/20.500.12259/238839
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Allelopathic effect on germination of invasive Impatiens spp.
Type of publication
Tezės kitoje duomenų bazėje / Theses in other database (T1c)
Title
Allelopathic effect on germination of invasive Impatiens spp.
Part Of
The vital nature sign [electronic resource] : 16th international scientific conference, dedicated to the Centennial of Lithuanian University (1922-2022), May 12th-13st, 2022 Kaunas, Lithuania : abstract book
Date Issued
Date Issued | Start Page | End Page |
---|---|---|
2022 | 45 | 45 |
Publisher
Kaunas : Vytautas Magnus University
Field of Science
OECD Classification
Abstract
Invasive alien plant species induce a significant hazard to the biodiversity of native systems [1]. The changed biodiversity procures the alteration of their ecological services. Therefore, the understanding the dispersion of the alien species in invaded habitats outside their native range remains crucial finding the prevention means of their spread [2]. Biochemical interactions based on some hypothesis used to explain these phenomena.
This investigation has aimed for the evaluation of the phytotoxicity on germination using the photospectroscopy of total phenolics content ex-situ of Himalayan balsam (Impatiens glandulifera), and Impatiens parviflora during growth period [3]. The tested acceptor species have chosen wheat (Monocot) and rapeseed (Dicot).
The total phenolics content alternated between 0.001 and 0.008 mg/ml in aqueous extracts of investigated Impatiens spp. The germination and seedlings growth of tested acceptor species belonged to different systematic classes of Gymnosperm, i.e. monocot and dicot, have been supressed in the aqueous extracts of invasive Impatiens spp. Therefore, the acceptors’ germination and seedlings data confirmed the phytotoxity of tested Impatiens spp. However, the acceptors’ germination exhibited different response to the extracts due to permeability of their seed coats. Depending on Impatiens’ growth stage and extract concentration, the germination of thick-walled wheat recorded by 8-54% higher than that of rapeseed. The maximal phytotoxicity and germination suppression was determined in 0.2% extracts of flower and seed of tested Impatiens spp.
The data justify that phytotoxicity of tested invasive Impatiens species might depress the germination and thus regeneration and spread of native species in invaded ecosystems.
This investigation has aimed for the evaluation of the phytotoxicity on germination using the photospectroscopy of total phenolics content ex-situ of Himalayan balsam (Impatiens glandulifera), and Impatiens parviflora during growth period [3]. The tested acceptor species have chosen wheat (Monocot) and rapeseed (Dicot).
The total phenolics content alternated between 0.001 and 0.008 mg/ml in aqueous extracts of investigated Impatiens spp. The germination and seedlings growth of tested acceptor species belonged to different systematic classes of Gymnosperm, i.e. monocot and dicot, have been supressed in the aqueous extracts of invasive Impatiens spp. Therefore, the acceptors’ germination and seedlings data confirmed the phytotoxity of tested Impatiens spp. However, the acceptors’ germination exhibited different response to the extracts due to permeability of their seed coats. Depending on Impatiens’ growth stage and extract concentration, the germination of thick-walled wheat recorded by 8-54% higher than that of rapeseed. The maximal phytotoxicity and germination suppression was determined in 0.2% extracts of flower and seed of tested Impatiens spp.
The data justify that phytotoxicity of tested invasive Impatiens species might depress the germination and thus regeneration and spread of native species in invaded ecosystems.
Type of document
type::text::conference output::conference proceedings::conference paper
Language
Anglų / English (en)
Coverage Spatial
Lietuva / Lithuania (LT)
Date Reporting
2022