EFFECT OF PHYSICAL AND CHEMICAL MUTAGENS ON DIFFERENT CULTIVARS OF TUBEROSE (POLIANTHES TUBEROSA LINN.) WITH PARTICULAR REFERENCE TO INDUCTION OF GENETIC VARIABILITY
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 15
Abstract
Four cultivars of tuberose (Polianthes tuberosa Linn.), viz. Kalyani Single, Kalyani Double, Suvasini and Prajwal were used to study the mutagenic effectiveness of various physical and chemical mutagens viz. Gamma rays, X-rays and EMS, by treating the healthy and uniform bulbs of tuberose with different doses each of gamma rays viz., (5, 15 Gy), X-rays (6, 12 Gy) and EMS (0.1, 0.2%) along with the untreated bulbs as control and evaluated for various vegetative and floral characters. The findings of the experiment showed that the treatments of the mutagens at lower doses had significant simulative effect on vegetative parameters viz., sprouting percentage, days to sprouting while the parameter pertaining to survival rate, leaf length, number of spikes per plant, florets per spike, flowering duration and vase life were observed with decreasing trend. Higher doses of all mutagens had detrimental effects on the vegetative and floral characters. Mutants exhibited variation from the parent plant with respect to the vegetative characters.
Authors and Affiliations
MANISH KAPOOR
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