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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(9): 2249-2257
DOI: https://doi.org/10.20546/ijcmas.2017.609.276


Generation Mean Analysis for Yield and Salinity Tolerance in Rice (Oryza sativa L.)
R. Muthuvijayaragavan* and E. Murugan
Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, Tamil Nadu 625 104, India
*Corresponding author
Abstract:

The experimental material consisted of six generations (P1, P2, F1, F2, BC1 and BC2) obtained from two crosses of rice using three parents laid out in a randomized block design with two replications to study the generation mean analysis for ten characters viz., days to flowering, plant height, number of tillers per plant, number of productive tillers per plant, panicle length, number of filled grains per panicle, total number of grains per panicle, 1000 grain weight and single plant yield. In ADT43 x FL478 a cross the characters like days to flowering, plant height, number of filled grains per panicle, total number of grains per panicle, spikelet fertility and 1000 grains weight were governed by dominance and dominance × dominance gene effects, days to 50% flowering, number of tillers per plant, number of productive tillers per plant, number of filled grains per panicle, total number of grains per panicle, 1000 grains weight and single plant yield were governed by additive and additive × additive gene effects. The cross Improved White Ponni x FL478, characters like days to flowering, plant height, panicle length, number of productive tillers per plant, number of filled grains per panicle, total number of grains per panicle, spikelet fertility, 1000 grain weight and single plant yield were predominantly governed by additive and additive × additive gene action. The complementary recessive epistasis was observed for the traits number of tillers per plant, number of productive tillers per plant and single plant yield in cross ADT43 x FL478. The presence of duplicate dominant epistasis was noticed for all the traits studied in cross Improved White Ponni x FL478.


Keywords: Generation mean analyses, Salinity, Complementary recessive epistasis, Duplicate dominant epistasis, Additive and dominance.
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How to cite this article:

Muthuvijayaragavan, R. and Murugan, E. 2017. Generation Mean Analysis for Yield and Salinity Tolerance in Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 6(9): 2249-2257. doi: https://doi.org/10.20546/ijcmas.2017.609.276