Development of high yielding aromatic mutants of rice (Oryza sativa L.) from a local aromatic cultivar, Tulaipanji by using gama radiation Roy Bidhan*, Kumar Vikash2, Tulsiram Surje Dinesh1, Das B. K.2 Department of Seed Science and Technology 1Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, 736165, West Bengal 2Nuclear Agriculture and Biotechnology Division, Bhaba Atomic Research Centre, Tormbay, Mumbai, 400085 *Corresponding author's e-mail: bcroy10@yahoo.com
Online published on 18 January, 2019. Abstract Mutation induced variability is an important method in plant breeding to create non-existing desirable genotype(s) for crop improvement. In this endeavour, gamma radiation was used to create variability for improving plant type and yield attributing traits in a local aromatic cultivar, Tulaipanji. Eight desirable mutants were identified from M4 generation. All those eight mutants induced from Tulpanji were photoperiod-insensitive, non-lodging, semi-dwarf with high yield potential and retained the aroma. Mutants TP3–2, TP3–4 and TP3–6 showed high increase in yield (>89%) over the control cultivar, Tulpanji. As the mutants were photoperiod insensitive, they may be recommended for cultivation for both boro and kharif seasons after necessary trials and demonstrations. Top Keywords Aromatic rice, mutation breeding, high yielding aromatic mutants, gamma radiation. Top |