BREEDING FOR DROUGHT AND SALINITY STRESS RESISTANT RICE (ORYZA SATIVA L.) WITH THE INFLUENCE OF IONIZING RADIATIONS
Bakiruly K. Zhalbyrov A. Aleksiayenak Y. Kruglyak A. Tokhetova L. Baimbetova G. Gledenov Y. Appazov N. Doroshkevich A.
December 2025Society for the Advancement of Breeding Researches in Asia and Oceania
Sabrao Journal of Breeding and Genetics
2025#57Issue 62334 - 2344 pp.
The present research aimed to assess the pivotal role of gamma (γ-ray) and fast neutron (FN) radiations in developing rice (Oryza sativa L.) mutant types resistant to salinity (NaCl) and drought stress conditions. Local rice cultivars irradiated with different levels of ionizing radiation had their seeds subjected to salinity and drought stress conditions. Rice cultivars showed varied responses to ionizing radiation and stress factors for morphological and yield-related traits. The highest number of mutant forms resulted from the local rice cultivar Syr Suluy, followed by two other cultivars, viz., Leader and Aikerim. The resulting M1 genotypes significantly differed from the parental forms for morphological and yield-related parameters, i.e., plant height, panicle length, grain size, and grain weight. This genetic material can be effective in the development of synthetic cultivars adapted to the soil and climate stress conditions of the Aral Sea area in Kazakhstan.
cultivars , fast neutrons , gamma rays , morphological and yield-related traits , mutation , Rice (O. sativa L.) , salinity and drought stress conditions
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Kazakh Research Institute of Rice named after I. Zhakhaev, Kyzylorda, Kazakhstan
Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow Region, Dubna, Russian Federation
Korkyt Ata Kyzylorda University, Kyzylorda, Kazakhstan
Kazakh Research Institute of Rice named after I. Zhakhaev
Frank Laboratory of Neutron Physics
Korkyt Ata Kyzylorda University
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