National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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