National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Morphological characterization of thirteen promising CPE (complete panicle emergence) mutants of Samba Mahsuri was done using thirty four agro-morphological traits by following DUS (Distinctiveness, Uniformity and Stability) guide lines. There was no variation observed in twenty two characters while in 12 characters there was variation among the individual mutants. Among all the traits, Culm attitude showed higher variation but there was no variation in the panicle emergence. Genetic relatedness among the mutants was assessed by the hyper polymorphic SSR markers. Correlation of phenotypic and genotypic data among mutants revealed that three mutants (CPE-1, CPE-9 & CPE-10) showed high genetic similarity with wild type (95%, 98.33% & 96.66%) as well as negligible variation in tested morphological characters. Whereas two mutants (CPE-12 & 13) showed more variation in morphological characters as well as less genetic similarity (86.66 & 86.66 %) with wild type was observed. But all the genotypes used in this study exhibits complete panicle emergence, which is differ from the wild type parent. This detailed characterization of Samba Mahsuri CPE mutants is very important for rice breeding from the standpoint of selection and conservation of different mutants for further utilization in crop improvement programmes and also to seek protection under PPV&FR Act, 2001 of India.
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