MUTAGENESIS THROUGH GAMMA IRRADIATION IN CHILI (CAPSICUM ANNUUM L. AND CAPSICUM FRUTESCENS L.)
Zulfahmi Rosmaina Damayanti R. Gulnara A. Baytelieva A. Jaxybayeva S. Nazgul K.
OCTOBER 2025Society for the Advancement of Breeding Researches in Asia and Oceania
Sabrao Journal of Breeding and Genetics
2025#57Issue 51938 - 1949 pp.
Gamma-ray irradiation commonly served as a mutagenic agent to induce genetic variability in crop species. However, the appropriate gamma-ray irradiation dose requires determining before starting a mutagenesis-based breeding program. The presented study sought to determine the lethal dose (LD50) and the growth reduction dose (GR50) in Capsicum annuum cv. Kopay and Capsicum frutescens cv. Bara. The seeds of both cultivars sustained gamma-ray doses irradiation of 0, 200, 300, 400, and 500 Gray (Gy). This study found the seed germination percentage, survival percentage, and seedling height of the Kopay and the Bara cultivars decreased with increased gamma-ray doses compared with the control due to seed injury and impact on poor growth seedlings. The LD50 and GR50 values of the Bara were 257.64 and 246.10 Gy, respectively, while for Kopay, these were 333.56 and 318.61 Gy, respectively. The LD50 of the gamma ray for the Kopay was higher than the Bara, indicating the Kopay variety has less sensitivity to gamma-ray irradiation than the cultivar Bara. The study results can be beneficial for mutagenesis-based plant breeding programs in Capsicum.
acute irradiation , C. frutescens L.) , Chili (C. annuum L , cultivars , gamma ray , radiosensitivity
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Department of Agrotechnology, Universitas Islam Negeri Sultan Syarif Kasim Riau, Indonesia
Center Study for Fruits and Indigenous Resources, Universitas Islam Negeri Sultan Syarif Kasim Riau, Indonesia
Department of Biology, Taraz University named after M.KH. Dulaty, Taraz, Kazakhstan
Department of Agrotechnology
Center Study for Fruits and Indigenous Resources
Department of Biology
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