Vol. 8, Issue 5 (2020)
Screening for sheath blight resistance lines of rice (0ryza sativa L.) variety swarna by using of chemical mutagen
Author(s): Reeshu Singh, Sumant Pratap Singh, Ankit Singh, DK Dwivedi and NA Khan
Abstract: The present investigation was undertaken to identify the resistant lines amongst mutated rice population of the variety swarna induced by the sodium azide. The variability in disease reaction was observed among mutated rice lines. Out of the total 1000 mutant plants, 47 plants were screened that show low disease index, ranged between 0 to 5 were selected for next M generation. In M2 generation the selected genotypes show differences for disease index, only 12 lines shows resistance in M2 generation in field condition and in humidity chamber condition only 8 lines shows resistance. The number of resistance lines were decreases in humidity condition. Non significant variation in morphological expression and in yield attributes among the selected mutants was also reported. Thus, these lines could be considered a potential source for disease resistance against the sheath blight of rice and could be used further in the crossing programme for development of sheath blight resistant rice variety.
DOI: 10.22271/chemi.2020.v8.i5ad.11924
Pages: 2221-2225 | 796 Views 164 Downloads
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How to cite this article:
Reeshu Singh, Sumant Pratap Singh, Ankit Singh, DK Dwivedi, NA Khan. Screening for sheath blight resistance lines of rice (0ryza sativa L.) variety swarna by using of chemical mutagen. Int J Chem Stud 2020;8(5):2221-2225. DOI: 10.22271/chemi.2020.v8.i5ad.11924
