Allelopathic Potential and Mechanism of Rosebay Willowherb [Chamaenerion angustifolium (L.) Scop.] Demonstrated on Model Plant Lettuce

Allelopathic plants are important resources for the discovery of bioherbicides. Rosebay willowherb [Chamaenerion angustifolium (L.) Scop. syn. Epilobium L.] widely distributes in Western Asia, Europe, and North America, behaves as a dominant species within community due to production substances that restrict growth other plants. This study aims at investigating allelopathic potential rosebay by evaluation effects aqueous extracts from different parts on seed germination seedling lettuce (Lactuca sativa L.), well measuring accumulation reactive oxygen structural analysis root tips via scanning electron transmission microscopy. It was observed leaves had strongest inhibitory effect index, energy total seeds, followed capsular fruits flowers, inhibition stems weakest. All (100 mg/mL) showed significant radicle elongation seedlings. Additionally, after treatment with extract leaves, increased columella cells, which correlated disruption tip structure.