Euphorbia heterophylla, L. is an important weed which occurs mainly in soybean fields. The seeds were grouped into dark and light, according to the seed coat color. Both types of the seeds were placed to germinate in solutions of 2-chloroethyphosphonic acid in the concentrations of 10, 100 and 1000 ppm. The results showed a significant inhibition of grmination in the teste concentrations.
Euphorbia heterophylla; Seed germination; 2-Chloroethylphosphonic acid; Weed