Effects of Various Plant Extracts on the Seedling Development of Cichorium intybus and Alopecurus myosuroides

The study aimed to assess the impact of extracts from plant species on the early growth of Cichorium intybus and Alopecurus myosuroides weeds in laboratory and greenhouse. In the laboratory, the tested extracts included Papaver fruits, Harmel seeds, Fenugreek seeds, Artichoke leaves, Peanut shoots, Camelina shoots, Juglans fruit skins, and Pomegranate fruit skins at concentrations of ۶.۲۵, ۱۲.۵, ۲۵, ۵۰, ۷۵, and ۱۰۰ g.l-۱. Distilled water and trifluralin were assigned as the controls, respectively. The most potent inhibitory extracts, Artichoke, Peanut, Pomegranate, and Papaver, at concentrations of ۲۵, ۵۰, ۷۵, and ۱۰۰ g.l-۱ in addition to distilled water and glyphosate were applied to C. intybus and A. myosuroides under greenhouse conditions. All the extracts resulted in reduced seed early growth and photosynthetic parameters for both weed species. The phytotoxicity effect of the extracts intensified with ۱۰۰ and ۷۵ g.l-۱, showing the most significant inhibitory effects. The hydroalcoholic extracts of Papaver fruit and Artichoke leaf, which had the highest total phenolic and alkaloid content, demonstrated the most significant herbicidal activity. Plant extracts containing allelochemical properties hold promise for the development of eco-friendly herbicides as substitutes for conventional chemical herbicides.

کلیدواژه ها:

allelochemical ، germinated seeds ، hydroethanolic extract ، natural herbicide ، weed