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 |
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.
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