Vol. 6, Special Issue 4 (2018)
Evaluation of rice genotypes under salt stress at reproductive stage using phenotypic and molecular markers
Author(s): Pratibha Yadav, Babita Yadav, KN Singh and DK Dwivedi
Abstract: Salinity screening for thirty rice genotypes were performed at the reproductive stages, in the net house. Three selected SSR markers were used to determine salinity tolerance in rice genotypes. Phenotyping of the genotypes was done at EC 12dS/m at reproductive stage in net house.The most desirable genotypes for days to 50% flowering were RP-4993-55-14-3-5-1 and MTU-1010; for plant height RP-4993-55-14-3-5-1, R-RHZSM-4 and Sambha mansuri; for panicle bearing tillers/plant IR-91158-85-3-2-33; for panicle length IR-91175-27-1-3-1-3, NUD-3, R-RHZSM-4, IR-83294-66-2-2-3-2 and IR-92960-75-1-3; for spikelets/panicle IR-91167-133-1-1-2-3, NDR-359, IR-91167-31-3-1-33, IR-91175-27-1-3-1-3, IR-92960-75-1-3, IR-83294-66-2-2-3-2, R-RHZSM-4, NUD-3, R-RHZ-2, Swarna, IR-91171-66-3-2-1-3, IR-91158-85-3-2-33 and IR-83668-35-2-2-2; for grains/panicle IR-91167-31-3-1-33, IR-91175-27-1-3-1-3, IR-92960-75-1-3, IR-83294-66-2-2-3-2, R-RHZSM-4, NUD-3 and R-RHZ-2; for test weight IR-92953-49-1-3, IR-84722-82-2-3-3-3, Sambha mansuri and IR-91171-70-3-3; for biological yield/plant R-RHZSM-4, R-RHZ-2, Sambha mansuri, Swarna and IR-91171-66-3-2-1-3; for harvest index Taramon were reported highly significant in mean performance for yield and its components traits. Molecular analysis with SSR markers differentiate the rice genotypes into tolerant and susceptible based on banding pattern. The tolerant rice genotypes were NUD 3, IR-68144-2B-2-2-3-166, IR68144-2B-2-2-3-1-120, IR-68100-2B-2-2-3-1-127, IR-1167-31-3-1-33 and IR-91171-66-3-2-1-3 and susceptible were NDR-359, Swarna and IR-64. The identified salt tolerant genotypes can be potential germplam sources for future breeding program002E
Pages: 207-212 | 705 Views 67 Downloads
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How to cite this article:
Pratibha Yadav, Babita Yadav, KN Singh and DK Dwivedi. Evaluation of rice genotypes under salt stress at reproductive stage using phenotypic and molecular markers. International Journal of Chemical Studies. 2018; 6(4): 207-212.
