Vol. 12, Issue 8 (2023)

Author(s):
Ranjeet Singh, Ranjan K Srivastava, Ajit Kumar, Satish Chand and BD Bhuj

Abstract:
Bulbs of Suvasini and Prajwal varieties of tuberose were exposed to six doses of gamma rays to assess the impact of mutagenesis on vegetative and floral traits. The treatment of bulbs with higher doses i.e., 3.5 and 4.0 Kr were found to delay/inhibit the germination. The gamma radiation doses of 2.0 Kr to 3.0 Kr have been found beneficial in triggering commercial traits with 2.0 Kr increased plant height and number of leaves in both the varieties. Moreover, early spike emergence and first floret opening, length of spike, rachis length, Number opened florets were recorded maximum at 2.0 Kr dose of gamma rays. The number of florets per spikes, number of unopened florets and blooming duration was maximum at 2.5 Kr. However, size and length of basal florets along with days to full bloom, was highest at 3.5 Kr. gamma doses.