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 |
Fifty nine (59) red-kernelled deep water rice (DWR) germplasm were screened under natural condition against major diseases and pests viz. sheath blight (ShB), sheath rot (ShR) and stem borer (SB) infestation at the Regional Agricultural Research Station (RARS), Assam Agricultural University, North Lakhimpur, Assam. None of the germplasm was free from the observed diseases and pest. Disease intensity of ShB ranged from 3.33% to 44.44% and the intensity of ShR ranged from 4.44% to 35.56%. The incidence of white ear heads due to SB infestation ranged from 2.22% to 52.21%. No germplasm was found to be resistant against ShB and ShR diseases. Four germplasm viz. Arg Bao, Buruli Bao, Kalburuni Bao and Pora Negheri Bao were found moderately resistant (MR) to ShB disease, while Arg Bao, Basudev Bao, Boga Amona Bao, Dal Bao, Garo Bao and Sarmora Bao showed MR reaction to ShR disease. Against SB infestation, thirteen numbers of germplasm showed resistant reaction. Among all the germplasm, five germplasm viz. Arg Bao, Basudev Bao, Dal Bao, Rayada B8 and Sarmora Bao showed MR reaction to both diseases and pest tested. These germplasm may be used as donors in resistant DWR breeding programmes against the tested pathogens and pest.
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