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Allelopathic Potential of Aqueous Extracts of Senna obtusifolia (L.) H. Irwin and Barneby

ABSTRACT

The aim of this work was to study the seeds germination of Lycopersicum sculentum when subjected to extracts of Senna obtusifolia. Bioassays were performed in order to analyze germinability and germination speed rate. The data obtained in the bioassays were subjected to ANOVA and test of Tukey at 5% probability. The extracts were subjected to chemical prospecting. Both germinability and germination speed rate analyses showed negative effects and the leaves extracts presented the most significant results. The presence of various groups of secondary metabolites was characterized in the chemical prospecting of three types of extracts.

Keywords:
allelopathy; allelochemical; obtusifolia.

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