Allelopathic effects of Alternanthera tenella over weeds
DOI:
https://doi.org/10.21826/2446-82312026v81e20261022Palabras clave:
allelopathy, germination index, inhibition, weed managementResumen
Allelopathy is defined as the interference of one plant in the other through the release of allelochemicals in the environment. This work evaluated the allelopathic influence of Alternanthera tenella on the germination and initial development of Lactuca sativa, Digitaria insularis, Emilia fosbergii and Portulaca oleracea, as well as to quantify and determine the phenolic compounds by High Performance Liquid Chromatography. Five leaf and root concentrations of the donor plant were tested using multi-well plates as containers in which 15 seeds were sown in six replications. The data obtained were subjected to analysis of variance and different inhibitory effects were observed, depending on the recipient species and the concentration used, with Emilia fosbergii and Digitaria insularis being the most sensitive species to leaf and root allelochemicals, respectively. Caffeic acid was identified in greater quantity, probably responsible for the effect on germination and initial development of recipient plants.
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Derechos de autor 2026 Iheringia. Série Botânica.
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
