Phytotoxicity of Extracts of and on Tomato Seedling Physiology.

Phytotoxicity caused by secondary metabolites of botanical extracts is a drawback in agriculture. The objective of this study was to evaluate the phytotoxic effects of methanolic extracts of and on the germination and physiological variables of tomato seedlings. The results indicated that high doses of both extracts ( and ) inhibited tomato seed germination, while their mixture ( + ) promoted germination by 100%.