Binasoybean-6: A High Yielding Mutant Soybean Variety Developed through Sustainable Mutation Breeding

• Main Authors: M.A. Malek, R.M. Emon, M.K. Khatun, M.S.H. Bhuiyan, Adedze Yawo Mawunyo Nevame, Md. Amirul Alam
• Format: Article
• Language: English; English
• Published: Agricultural Research Communication Centre 2022
• Subjects: SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
• Online Access: https://eprints.ums.edu.my/id/eprint/34871/1/Abstract.pdf; https://eprints.ums.edu.my/id/eprint/34871/2/Full%20text.pdf; https://eprints.ums.edu.my/id/eprint/34871/; https://www.arccjournals.com/journal/legume-research-an-international-journal/LRF-651; https://doi.org/10.18805/LRF-651
• Institution: Universiti Malaysia Sabah

Background: Soybean is an important source of food, protein and oil and hence more research is essential to increase its yield under different agro-ecological conditions, including stress. In this regard, four popular soybean varieties viz. Shohag, BDS-4, BAU-S/64 and BARI Soybean-5 were irradiated using Co60 gamma rays to create genetic variation for earliness, higher seed yield and other desirable agronomic traits. Methods: The experiments were conducted at Bangladesh Institute of Nuclear Agriculture (BINA) Headquarters farm, Mymensingh during 2006-2009 and 28 elite mutant lines were selected for evaluation. The mutant line, SBM-22 derived from mother variety BARI Soybean-5 irradiated with 300Gy of gamma rays was found to be superior compared to other mutants. Considering the superior performance of mutant SBM-22 including 28 mutants and mother check variety BARI Soybean-5, were evaluated through different trials. The evaluation trials were conducted at different agro-ecological zones of the country during Rabi season (January to April) of 2010-2018. Result: Significant variations were observed both in individual location and over locations for all traits. Reactions to major diseases and insect-pests infestation were also studied. Due to better performance of the mutant SBM-22, Bangladesh Institute of Nuclear Agriculture (BINA) applied to the National Seed Board (NSB) of Bangladesh for registration as an important soybean variety “Binasoybean-6”. Consequently, the NSB of Bangladesh registered SBM-22 as an improved soybean variety in 2019 as Binasoybean6 for commercial cultivation.