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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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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.2018.7(9): 2036-2040
DOI: https://doi.org/10.20546/ijcmas.2018.709.247


Inheritance of Rust Resistance in Groundnut (Arachis hypogaea L.)
Laxmi C. Patil1, S.M. Supriya2 and P.V. Kenchanagoudar1
1National seed Project, UAS, Dharwad, Karnataka, India
2Department of Genetics and Plant Breeding, UAS, Dharwad, Karnataka, India
*Corresponding author
Abstract:

Rust caused by Puccinia arachidis Speg. is the most important disease on Groundnut worldwide. Limited information about nature of inheritance of rust resistance is available to peanut breeders. The investigation was undertaken to determine the mode of genetic inheritance of rust resistance in two F2 populations of groundnut. The crosses were generated by crossing resistant genotypes viz., GPBD5 and ICGV86699 with susceptible genotype TG76. The parents, F1’s and F2 populations were evaluated for rust resistance under field conditions by following spreader row technique and spraying uredinospore suspension at 30 and 40 DAS. The disease scoring was recorded using 0-9 scale. Resistance of F1's to rust in both crosses indicated that resistance was dominant over resistance. Further F1’s were selfed to generate F2 populations, where resistance segregated in a ratio of 1R:3S, with non-significant chi-square values at 5% level indicating that rust resistance in groundnut is determined by a single recessive gene. This information will be relevant for the implementation of breeding programmes focused on the development of cultivars/hybrids carrying genetic resistance to rust.


Keywords: Inheritance, Rust, Resistance and Groundnut
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How to cite this article:

Laxmi C. Patil, S.M. Supriya and Kenchanagoudar, P.V. 2018. Inheritance of Rust Resistance in Groundnut (Arachis hypogaea L.).Int.J.Curr.Microbiol.App.Sci. 7(9): 2036-2040. doi: https://doi.org/10.20546/ijcmas.2018.709.247