International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:9, September, 2018

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

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 2018-2025

Exploitation of Heterosis for Yield and Its Components in Rice
R. Krishna Naik, P. Ramesh Babu, J. Dayal Prasad Babu, Y. Ashoka Rani and V. Srinivasa Rao
Department of Genetic & Plant Breeding, Agricultural College, Bapatla 522 101, A.P., India
*Corresponding author

Present study was conducted involving 54 rice hybrids to study standard heterosis expression for yield and some yield components characters viz., days to 50 per cent flowering, days to maturity, plant height, panicle length, productive tillers per plant, filled grains panicle-1, total number of grains panicle-1, spikelet fertility, test weight and grain yield plant-1. Among the heterotic crosses IR-58025A x WGL 3962 and IR-68897A x BPT 5204 showed significant negative standard heterosis for days to 50% flowering, days to maturity and plant height, so that this will be effective for developing short duration, semidwarf rice hybrids and also showed significant positive standard heterosis over KRH-2 for number of filed grains per panicle, total number of grains, test weight and grain yield per plant. So these promising cross combinations could be further used in rice breeding programme for developing high yielding rice hybrids

Keywords: Rice (Oryza sativa L.), Heterosis, Yield, Components

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How to cite this article:

Krishna Naik, R., P. Ramesh Babu, J. Dayal Prasad Babu, Y. Ashoka Rani and Srinivasa Rao, V. 2018. Exploitation of Heterosis for Yield and Its Components in Rice.Int.J.Curr.Microbiol.App.Sci. 7(9): 2018-2025. doi:
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