Research Journal of Science and Technology

Indian indigo (Indigofera tinctoria) is a dye yielding plant with medicinal properties. The seeds of the plant are very small and possess a hard seed coat. Different kinds of scarification treatments i.e. thermal, mechanical and chemical were carried out to break the dormancy of the seeds. Best result was obtained when the seeds were subjected to chemical scarification. About 76% of the seeds germinated when they were given a pre-sown treatment of quick dip in 100% concentrated sulfuric acid.