Allelopathic Potential of Lavender’s Extract and Coumarin Applied as Pre-Plant Incorporated Into Soil Under Agronomic Conditions

Abstract

This study aimed to further explore that if coumarin and lavender’s extract, similar to greenhouse conditions, are phytotoxic towards some plant species under agronomic conditions. Before planting of maize, coumarin at 0, 250, 500, 1,000, 2,000, and 4,000 g h-1 and lavender’s aqueous extract at 0, 1,000, 2,000, 4,000, 8,000, and 16,000 mL h-1 were applied and incorporated into soil at a 3-5 cm depth. The density and biomass of weeds was significantly reduced by applying both compounds. The inhibition ability was also rate-dependent. Although the density and biomass of maize was also decreased at high rates, this crop showed higher tolerant to both compounds that all weeds.

First Broad Screening of Allelopathic Potential of Wild and Cultivated Plants in Turkey

“…There is, however, no report on the allelopathic activity of P. mahaleb seed kernel. On the other hand, coumarin itself was found to be highly phytotoxic [39,40].…”

Design, synthesis, and herbicidal activity of novel phenoxypyridine derivatives containing natural product coumarin

“…Hence, the design of new herbicides based on natural products has attracted increasing attention in the agricultural sector 19 . Many natural compounds, such as coumarin (an aromatic compound) isolated from brassica, have been extracted from plants to explore their herbicidal activities 20,21 . For example, a series of novel designed and synthesized trifluoromethyl coumarin urea derivatives have been shown to have a similar herbicidal effect to that of the commercially available herbicide acetochlor, proving coumarin to be effective 22 .…”