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Effect of Gamma Irradiation on Vegetative Characters in various Cultivars of Gladiolus in vM2 Generation

Author: Anand Singh Rawat*, B.D. Bhuj, Ranjan Srivastava, Satish Chand and N.K. Singh

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Abstract

The present investigation was undertaken entitled studies of gamma irradiation on vegetative characters in various cultivars of gladiolus in vM2 generation. The experiment was carried out at Model Floriculture Centre (MFC), Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Uttarakhand), India during winter season of 2018-2019. To conduct field experiment medium sized of corms were used as experimental material from the seven gladiolus varieties viz. “Nova Lux”(V1), “Praha” (V2), “Black Star” (V3), “Nathan Red” (V4), “Candyman” (V5), “Punjab Dawn” (V6) and “Tiger Flame” (V7) irradiated with gamma rays of various doses viz. 0.0 Kr (G0), 4.0 Kr (G1), 4.5 Kr (G2), 5.0 Kr (G3), 5.5 Kr (G4), 6.0 Kr (G5) and 6.5 Kr (G6) which were planted in the open field condition at 30 × 20 cm distance. Experiment was laid out in randomized block design with three replications. In this research experiment various vegetative characters i.e. days to 50 % sp

Keywords

Gladiolus, gamma rays, mutation breeding, vegetative traits.

Conclusion

On the basis of findings observed in current investigation, it can be concluded that the treatment of gamma irradiation brought significant variation for different vegetative characters which was inducing for some characters and reducing for some characters. The earliest sprouting, numbers of leaves per plant, length of longest leaves and width of longest were found highest in untreated corms. The interaction effect of gamma rays and varieties, days to sprouting was reduced whereas numbers of leaves and width of longest leaf were increased in untreated corms of cv. Punjab Dawn. The prominent mutants were isolated for further stability and utilization in gladiolus improvement programme.

References

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How to cite this article

Rawat, A.S., Bhuj, B.D., Srivastava, R., Chand, S. and Singh, N.K. (2021). Effect of Gamma Irradiation on Vegetative Characters in various Cultivars of Gladiolus in vM2 Generation. Biological Forum – An International Journal, 13(3a): 25-28.