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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.
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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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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.2017.6(2): 100-103
DOI: http://dx.doi.org/10.20546/ijcmas.2017.602.014


Genetic Variability for Yield and Yield Components Characters in Bacterial Blight and Blast Resistance Genes Introgressed Backcross Populations in Rice
Ponnaiah Govintharaj*, Shalini Tannidi, Manonmani Swaminathan, Robin Sabariappan, Vishnu Varthini Nachimuthu, Karthika Gunasekaran and Balaji Aravindhan
Department of Plant Breeding and Genetics, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641003, Tamil Nadu, India
*Corresponding author
Abstract:

An experiment was framed to study the variability, nature of gene action and number of genes controlling the characters in bacterial blight and blast resistance genes introgressed three backcross population in rice. Mean variation was high for number of grains and plant height for all the crosses. The characters like plant height, number of productive tillers and number of grains were showed complementary gene interaction for all back cross population. While for thousand grain weight and single plant yield were explained complementary gene interactions in two backcross populations. Selection on these traits would obtain low genetic advance than expected. Panicle length in two crosses and thousand grain weight and single plant yield in one cross was showed duplicate gene interaction suggests that selection would be effective to gain higher genetic advance than expected. Kurtosis for plant height and panicle length was influenced by only few genes for all crosses, whereas number of productive tillers and number of grains were controlled by few genes for at least two crosses. Platykurtic distribution was prevalent in most of the characters in all crosses. Leptokurtic distribution was found in the cross TNAU CMS 2B × (TNAU CMS 2B × Zenith) for number of grains, suggesting that controlled by fewer genes.


Keywords: Rice bacterial blight,Rice blast,Skewness,Kurtosis.
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How to cite this article:

Ponnaiah Govintharaj, Shalini Tannidi, Manonmani Swaminathan, Robin Sabariappan, Vishnu Varthini Nachimuthu, Karthika Gunasekaran and Balaji Aravindhan. Genetic Variability for Yield and Yield Components Characters in Bacterial Blight and Blast Resistance Genes Introgressed Backcross Populations in Rice.Int.J.Curr.Microbiol.App.Sci. 6(2): 100-103. doi: http://dx.doi.org/10.20546/ijcmas.2017.602.014