Efecto alelopático de Capsicum chinense, Dianthus caryophyllusy Sorghum bicoloren semillas

Weedsrepresent a threat toagricultural production, causing significant losses in various crops. Chemically synthesized herbicides havebeen widely usedfor their control; however, their use entails environmental and resistance problems that poseimportant challenges. Aware of this problem, we have sought to develop more sustainable alternatives within the framework of sustainable agriculture. Plant extracts offer promising characteristics, such as their degradability,low cost, and effectiveness. In this context, the main objective of this work is to develop an alternative based on plant extracts from Capsicum chinenseL., Dianthus caryophyllusL., and Sorghum bicolorL. With HPLC/MS and GC-MS/MS analysis, we were able to find antioxidant compounds (DPPH), measure total phenols, and find volatile compounds. Additionally, we conducted germination inhibition tests on model seeds of Phaseolus vulgarisL. and Avena sativa L., utilizing the various extracts under evaluation. The results revealed the presence of various families of compounds, which contributed to the allelopathic activity of the extracts. The model seeds showed inhibition of germination, indicating a potential pre-emergence herbicidal effect of the selected treatments. The plant extracts analyzed exhibit a wide variety of bioactive and significant herbicidal activities. Therefore, we postulate its use as a viable and sustainable alternative for controlling weed germination in agricultural systems, potentially promoting more environmentally friendly agricultural practices.