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August 29, 2026PLoS ONEOpen Access

Under controlled conditions, lower concentrations of aqueous extracts of Acroptilon repens are needed to inhibit seed germination and seedling growth of weeds than crops

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Authors

FAFatemeh AhmadniaESElham Samadi-KalkhoranMAMohammad Taghi Alebrahim

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Overview

In vitro comparative study demonstrates selective inhibition of weed seed germination over crops by Acroptilon repens extracts, suggesting potential for natural bioherbicide development.

Key Points

  • To evaluate the concentration-dependent inhibitory effects of aqueous extracts from the allelopathic weed Acroptilon repens on seed germination and seedling growth across multiple weed and crop species.
  • Conducted in vitro comparative bioassays testing aqueous A. repens extracts against three weed species (Sinapis arvensis, Amaranthus retroflexus, Avena fatua), one multipurpose species (Secale cereale), and two crop species (Triticum aestivum, Vicia faba).
  • Characterized secondary metabolites in the aqueous extract using untargeted gas chromatography-mass spectrometry (GC-MS) profiling.
  • Application of the extract produced a significant, linear, concentration-dependent decline in germination metrics and seedling growth (P ≤ 0.01), while mean germination time was unaffected (P > 0.05).
  • Weed species exhibited complete germination inhibition at lower extract concentrations (S. arvensis ≥ 40 g L⁻¹, A. retroflexus ≥ 80 g L⁻¹, A. fatua ≥ 120 g L⁻¹) than crops (T. aestivum ≥ 140 g L⁻¹, S. cereale ≥ 160 g L⁻¹).
  • Untargeted GC-MS profiling putatively identified phytotoxic compounds, including phenolic constituents, caryophyllene oxide, fatty acids, and sterols.

Cite This Study

Ahmadnia et al. (2026) studied this question.

synapsesocial.com/papers/6a9299ac8e5d7d1fc0c11bcahttps://doi.org/10.1371/journal.pone.0354454
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Allelopathic effects of four spontaneous plants from arid regions on the germination and growth of selected weeds and crops2026
  2. 2Phytochemical‐Mediated Allelopathic Activity of <i>Artemisia campestris</i> on Germination and Growth of Oasis Weed Species2026
  3. 3In vitro allelopathic potential of &lt;i&gt;Photinia × fraseri &lt;/i&gt;extracts on the seed germination of selected crop and weed species2025
  4. 4Study of the chemical composition of the Acroptilon Repens plant2024
  5. 5Phytotoxic Effects of Aqueous Leaf Extracts on the Seed Germination and Initial Root Elongation Dynamics of Target Seedlings2026