allelopathy

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Allelopathy is the production of biochemical compounds by plants that influence the growth, germination, survival, and reproduction of neighboring organisms through chemical signaling. Understanding allelopathy is essential for plant science as it reveals fundamental mechanisms of plant-plant interactions and resource competition, with important applications in agriculture, ecology, and ecosystem management.

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Allelopathic Compounds in Juglans nigra Leaf Litter Suppress Understory Diversity

PubMed · 2026-02-15

Black walnut leaf chemicals suppress 40-85% of native understory plant germination, with sandy soils amplifying the effect.

2 new hydrojuglone glucosides identified

40-85% germination suppression of 12 species

Sandy soils amplify allelopathic effects

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Black Walnut

allelopathy

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