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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - 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
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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(6): 609-618
DOI: https://doi.org/10.20546/ijcmas.2018.706.070


Assessment of Virulence of Rice Gall Midge, Orseolia oryzae (Wood-Mason) Population at Warangal, Telangana, India
T. Sahithi*, R. Sunitha Devi, S. Malathi, K.N. Yamini and G. Uma Devi
College of Agriculture, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Hyderabad-500 030, Telangana, India
*Corresponding author
Abstract:

The Asian rice gall midge, Orseolia oryzae (Wood-Mason) (Diptera: Cecidomyiidae) is a serious pest of rice (Oryza sativa L.) in India. Seven distinct biotypes of the Asian rice gall midge have been characterized so far from different parts of India. Warangal rice gall midge population is designated as biotype 4M. In order to find the virulence pattern of the rice gall midge population, single gall midge female virulence test was conducted at RARS, Warangal with three differentials, W1263 (Gm1), RP2068-18-3-5 (gm3), Aganni (Gm8) along with Purple (Susceptible check) and gene pyramided line (Gm4, Gm8 and gm3) of F3 generation of inter-cross, (MTU 1010 × RMSGM3) × (MTU 1010 × RP 5923). 57% of the females were virulent among which 53.57% were virulent on purple, 48.21% on gene pyramided line (Gm4, Gm8 and gm3), 32.14% on W1263 (Gm1), 30.35% on RP2068-18-3-5 (gm3) and 7.14% on Aganni (Gm8). Sex ratio of off springs emerged is 1:3 and is favourable in all the differentials and gene pyramided line except W1263. It was found that Aganni (Gm8) has recorded low virulence by gall midge biotype 4M.


Keywords: Differential, Gall midge, Rice, Virulence
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How to cite this article:

Sahithi, T., R. Sunitha Devi, S. Malathi, K.N. Yamini and Uma Devi, G. 2018. Assessment of Virulence of Rice Gall Midge, Orseolia oryzae (Wood-Mason) Population at Warangal, Telangana, India.Int.J.Curr.Microbiol.App.Sci. 7(6): 609-618. doi: https://doi.org/10.20546/ijcmas.2018.706.070