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May 11, 2026Allelopathy Journal

Effects of Casuarina equisetifolia L. Litter on germination of Helianthus annuus L

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Authors

RWRheanna WilderDEDaniel EliasJDJason Doll

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Overview

Randomized trial evaluates the impact of Casuarina litter on Helianthus germination, highlighting chemical interactions.

Key Points

  • This research aims to evaluate how Casuarina equisetifolia litter concentration and soil aging affect the germination of Helianthus annuus.
  • Incorporated Casuarina branchlets into soil at concentrations of 30, 150, and 300 g/kg.
  • Incubated soil mixtures for 0, 7, 14, or 21 days before sowing Helianthus annuus seeds.
  • Compared germination rates across treatments and incubation periods.
  • Germination probability decreased significantly with litter concentration, with > 80% chance of zero germination at highest concentrations.
  • Soil incubated for 7 days supported higher germination rates compared to non-incubated soil.
  • Controls with no litter led to complete germination, whereas soil with only branchlets resulted in zero germination.

Cite This Study

Wilder et al. (2026) studied this question.

synapsesocial.com/papers/6a0171983a9f334c28271c76https://doi.org/10.26651/allelo.j/2026-68-1-1579
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