Status of Kernel Smut of Rice in Andhra Pradesh
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Authors
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K.V.S. MEENA KUMARI
Seed Research and Technology Centre, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
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B. RAJESWARI
Seed Research and Technology Centre, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
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P.S. RAO
Seed Research and Technology Centre, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
Keywords:
Kernel smut, paddy bunt, Tilletia barclayana, RiceAbstract
Three thousand three hundred and twenty samples from different agro climatic zones of Andhra Pradesh were analyzed for the prevalence of paddy bunt disease during 1993-2008. Highest infected samples (47.99%) were recorded in Krishna - Godavari zone followed by northern Telangana Zone (30.8%) in farmers seed lots as compared to processed seed samples which recorded 20.5 per cent and 13.4 per cent in the above two zones, respectively. Among different varieties, IR-64 (2.28%) recorded maximum bunt infection in farmers seed lots, which was above seed certification standard of 0.5 per cent. In processed seed samples also maximum infection was recorded in IR-64 (1.22%). The infected samples that crossed the seed certification standard in farmers samples were found to be (31) and 2 infected samples that crossed the seed certification standard of 0.5 per cent in processed seed samples. Krishna Godavari Zone and northern Telangana Zones of Andhra Pradesh were identified as hot spots for paddy bunt infection.
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References
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