Abstract

The seed germination study of kalmegh (Andrographis paniculata Nees.) was conducted in Completely Randomized Design with 27 treatments replicated thrice. Observations were made on no. of days for germination initiation, number of days required for the first count, germination percentage, root length, shoot length, dry matter production and vigour index. The study revealed that the final count of germination could be taken at eighteenth day. The hot water treatment at 50°C for 5 minutes improved the germination potential of seeds from 62 per cent to 84 per cent. Being a medicinal plant, this treatment is ranked as the best, eco-friendly and cheaper.

Keywords: Kalmegh, Germination, Vigour index, Thiourea, KCL2 KH2PO, GA3 H3SO4 Hot water, Sand scarification.