GAMMA RAYS INDUCED MUTAGENIC STUDIES IN CATHARANTHUS ROSEUS (L.) G. DON., AN IMPORTANT ORNAMENTAL PLANT
A study was conducted to estimate the effect of gamma rays on growth and yield traits in periwinkle (Catharanthus roseus (L.) G. Don), an important horticulture plant. The seeds were treated with different levels of gamma rays (20, 25 and 30). Morphological parameters were analysed on the 30th day, like plant height, days of first flower, plant height, fresh weight per plant, dry weight per plant, root fresh weight per plant and root dry weight per plant. The morphological parameters were decreased with increasing levels of gamma rays doses.