Vol. 9, Issue 11 (2020)
Effect of gamma irradiation on the chlorophyll content of tree tomato (Solanum betaceum Cav.) in M1 generation
Akoijam Merina Chanu, Rocky Thokchom, Th. Bhaigyabati, Ningthoujam Sandhyarani Devi and Thokchom Ronald Meitei
Gamma irradiation stimulates a broad range of change in physiology and biochemical alterations in plants by modulating specific defensive and metabolic pathways. Pre-sowing seed irradiation is deliberated as an effective method of increasing production, yield and chemical compositions in plants. In the current study, Solanum betaceum Cav. (Tree tomato) is induced to gamma irradiations with absorbed doses 0 Gy, 10 Gy, 25 Gy, 50 Gy, 75 Gy and 100 Gy and 0 Gy as a control dose. When they were exposed to the variable doses of gamma radiations, they show consistent changes in the growth and development of the plants. The current study experiments on the chlorophyll content of the irradiated and non-irradiated plants in M1 generation. The result of the study shows that the effect of gamma irradiations on chlorophyll content is significant in M1 generation of the tree tomato. From the data it shows that the chlorophyll content decreases significantly after gamma irradiation is used on first generation when compared with the control dose. The highest chlorophyll content (chl a: 16 µg/ml, chl b: 3.43µg/ml, total chlorophyll: 19.43µg/ml) is recorded in the non-irradiated plants. Among the gamma irradiated plants, chlorophyll content of 10 Gy (8.32µg/ml) is found highest while, lowest (2.61µg/ml) is observed at higher irradiation i.e.,100 Gy at M1 generation. This shows that chlorophyll content decreases with the increase in gamma doses. The above biochemical analysis confirms that photosynthetic components are very responsive to gamma irradiation and are good index of persistence which provides sufficient evidences to the effect that γ-irradiation. Thus, gamma rays demonstrate to be a prime tool to enhance the efficiency of breeding and frequency of regeneration.
How to cite this article:
Akoijam Merina Chanu, Rocky Thokchom, Th. Bhaigyabati, Ningthoujam Sandhyarani Devi, Thokchom Ronald Meitei. Effect of gamma irradiation on the chlorophyll content of tree tomato (Solanum betaceum Cav.) in M1 generation. Pharma Innovation 2020;9(11):33-35.