| Allelopathy has been conceptualized as the direct or indirect effect of a plant onto another one through secondary metabolites, or allelochemicals spread in the environment, with the power to interfere in seed germination and increase or inhibit the development of neighboring plants. The objective of this study was to analyze the possible allelopathic effects of aqueous extracts of Tephrosia cinerea in the germination of lettuce (Lactuca sativa L.) seeds. The experiment has been carried out at the Laboratório de Nutrição Mineral de Plantas (Laboratory of Plant Mineral Nutrition)/UAEF/UFCG in Patos (state of Paraíba). We collected T. cinerea organisms, having separated the stem, leaves, roots fractions and the aerial part of the plant + roots, having... |
