Effect of Gamma Irradiation on Survivability, Growth Performances and Floral Characters of Jasminum officinale (Samanpichcha)

Physical mutagenesis is an effective mutational breeding method for improving various growth and floral characteristics of ornamental plants. The experiment was undertaken with objective to investigate the effect dosages gamma irradiation on survivability, Jasminum officinale plants raised by rooted cuttings. 60CO Gamma source at Horticultural Crop Research Developmental Institute, Gannoruwa used expose different such as 0Gy, 17Gy, 21Gy, 25Gy, 29Gy 33Gy. A Complete Randomized Design four replicates having 10 each replicate practiced. results revealed that dosage from 25Gy 33Gy significantly decreased survivability J. (P<0.05). LD50 radiation occurred around maturity stage. Plant height shoot length were reduced 17Gy compared control significant reduction number observed dosage, it showed a in petal width (0.82 cm) flowers. None other able develop change officinale. study irradiated plant, plant height, shoots hence could be domesticated dwarf potted plant.