Abstract
The allelopathic effect of coffee roasting residue on the germination and development of seedlings of corn, soybean and cowpea was evaluated. The physiological quality of seeds and seedlings was determined by means of the germination test, first germination count, germination speed index, mean germination time, shoot and root length, shoot and root dry mass and the ratio of shoot dry mass and root dry mass. The use of coffee residue inhibited germination and reduced the germination speed and dry mass accumulation of the seedlings of the three evaluated species.
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