Abstract:
Germination and growth of Catharanthus rascus seeds were found directly related to temperature. Scarification of seeds retarded germination and growth of seedlings. Germination and growth of seeds soaked in water at 30 C for 2h significantly increased in longer incubation periods. C. roseus was extremely sensitive to salinity. Loam soil gave maximum germination and growth. Partial sunlight and complete shade adversely affected germination and growth.
