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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(4): 3125-3137
DOI: https://doi.org/10.20546/ijcmas.2020.904.365


Identification of Maintainer and Restorer Lines for WA Cytoplasmic Male Sterility in Rice Using Pollen Fertility and Spikelet Fertility
Vanitha1*, Jayateertha R. Diwan1, D. Shreedhara2, Vikas V. Kulkarni3, K. Mahantashivayogayya2 and Vijaykumar N. Ghante3
1Department of Genetics and Plant Breeding, University Agricultural Sciences, Raichur-584104, India 2Agricultural Research Station, Gangavati, University Agricultural Sciences, Raichur-584104, India 3Main Agricultural Research Station, University Agricultural Sciences, Raichur-584104, India
*Corresponding author
Abstract:

Hybrid technology in many crops has contributed 20-30 per cent increase in the production and exploitation of heterosis through the development of F1 hybrids which has been recently deployed in rice with yield advantage of 20-25 per cent over best pure lines. The main aim of any plant breeding programme is to develop special high yielding hybrids and success of any plant breeding programme depends on the choice of appropriate genotypes as parents in the hybridization programme. To accomplish this, the breeding programme can efficiently be planned with prior knowledge of the genetic makeup of parental genotypes whether they are sterile or complete restorer. Eighty-four rice genotypes (F1 crosses) were selected for identification of fertility restoration for five CMS lines with WA cytoplasm. F1 crosses were analysed for pollen fertility and spikelet fertility and were classified into four classes viz, complete maintainer, partial maintainer, partially restorer and fully restorer. Out of 84 F1 hybrids, 13 lines were completely fertile and 5 completely sterile. The remaining 66 hybrids expressed varying degrees of fertility (both pollen and spikelet). Forty-nine of them were partial maintainers and the remaining seventeen were partial restorers (based on spikelet fertility).


Keywords: Cytoplasmic Male Sterility, Fully Maintainer, Hybrid rice, Partial Maintainer
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How to cite this article:

Vanitha, Jayateertha R. Diwan, D. Shreedhara, Vikas V. Kulkarni, K. Mahantashivayogayya and Vijaykumar N. Ghante. 2020. Identification of Maintainer and Restorer Lines for WA Cytoplasmic Male Sterility in Rice Using Pollen Fertility and Spikelet Fertility.Int.J.Curr.Microbiol.App.Sci. 9(4): 3125-3137. doi: https://doi.org/10.20546/ijcmas.2020.904.365