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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(2): 1146-1151
DOI: https://doi.org/10.20546/ijcmas.2019.802.133


Evaluation of Test Crosses for Identification of Potential Restorers and Maintainers for Development of Rice Hybrids (Oryza sativa L.)
K. Parimala1*, Ch. Surender Raju2, A.S. Hari Prasad3, S. Sudheer Kumar4, S. Narender Reddy5 and M.H.V. Bhave5
1Seed Research and Technology Centre, PJTSAU, Rajendranagar, Hyderabad -30, India
2Rice Research Centre, Rajendranagar, Hyderabad -30, India
3ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad -30, India
4PJTSAU, Rajendranagar, Hyderabad -30, India
5College of Agriculture, PJTSAU, Rajendranagar, Hyderabad -30, India
*Corresponding author
Abstract:

The investigation was carried out to identify the potential maintainers and restorers in rice by crossing the one CMS line with 65 selected genotypes during rabi 2012-13. The resultant 65 test crosses were evaluated during kharif 2013. A high range of spikelet fertility was recorded among the hybrids i.e., from 0 to 92.4 per cent which indicated that restorability varies depending on male parent. Among the 65 test crosses studied, 28 genotypes exhibited high spikelet fertility (>75%), 20 were partial fertile (50 to 75 %), whereas 14 genotypes were partial maintainers (1 to 50 %) and three genotypes were found to be completely sterile (0 %). The identified maintainers can be developed as new cytoplasmic male sterile lines by repeated back cross breeding with recurrent parent. Among the 28 restorers identified, 12 best restorers with more than 80 per cent spikelet fertility were selected for further use in hybrid rice breeding.


Keywords: Rice Hybrids, (Oryza sativa L.), Evaluation of Test Crosses
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How to cite this article:

Parimala, K., Ch. Surender Raju, A.S. Hari Prasad, S. Sudheer Kumar, S. Narender Reddy and Bhave, M.H.V. 2019. Evaluation of Test Crosses for Identification of Potential Restorers and Maintainers for Development of Rice Hybrids (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 8(2): 1146-1151. doi: https://doi.org/10.20546/ijcmas.2019.802.133