The germination percentage of Rakta Kambal (Adenanthera pavonia Linn.) seed is very low (2.5%). Soaking of seeds in 20,40, 60 or 80 percent sulphuric acid for 20, 40 or 60 minutes increased the germination percentage. Maximum germination (82.5%) was obtained when seeds were soaked in 60 % sulphuric acid for 20 minutes.
Germination percentage of seeds treated with 40, 60 or 80% sulphuric acid was significantly better than that of the 0% or 20% sulphuric acid treated seeds.