Research acheivements

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Article Index
Research acheivements
Soil Science
Plant Physiology
Plant Pathology
Crop Improvement
crop production
crop protection
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 Plant Pathology  

  • Of 2474 entries in five different screening nurseries, the number of promising entries were 51 for leaf blast, 26 for neck blast, 56 for sheath blight, 56 for brown spot, 9 for sheath rot, 58 for bacterial blight, 27 for rice tungro virus, 40 for leaf scald and 26 for grain discolouration.
  • Of the 1015 germplasm accessions evaluated, two entries showed resistance to more than one disease viz., IC No. 211168 (blast and brown spot ) and 217196 (brown spot and sheath blight).
  • Monitoring   of   field   virulences   of   blast pathogen   revealed   minor   shift   in   the pathogen population.Bacterial     blight  pathogen  data  indicated  a major  shift  in virulence  profile  at Aduthurai, Maruteru, Patna, Navsari, Kaul and Raipur.
  • The      combination      fungicide      ICF-110 (tricyclazole 45% + hexaconazole 10% WG) both mean disease severity and incidence of leaf blast, neck blast, sheath blight, sheath rot and leaf scald. The combination product, Merger (tricyclazole 18%+ mancozeb 62% WP) 2.5 g/l proved effective against leaf blast, neck blast, sheath blight, brown spot and sheath rot.
  • The  data  on  special  IPM  trial  indicated that adoption of IPM practices reduced the progress of disease severity of major diseases compared to farmers’ practices. The highest disease   severity   was   (BLB-56.50%,   ShB-31.37%) observed in case of the fields where farmers practice was followed compared to BLB-11.31% and ShB-31.37% in plots where IPM was practiced.
  • The trial on false smut with three different dates of sowing revealed high disease infection  at  Ludhiana  and  Titabar  when crop was sown on 1st and 2nd week of June. Among the hybrids tested, KRH 2 was highly susceptible across the locations followed by DRRH 3 and US 312.
  • Production  oriented  survey  conducted  in 18  states  of  India  indicated  that  diseases like  blast,  neck  blast,  brown  spot,  sheath blight, sheath rot, false smut and bacterial blight were wide spread in low to moderate intensity  across  the  country.  Bakanae  has become  a  problem  in  Haryana,  Himachal Pradesh, Jammu and Kashmir and Punjab. A new disease called crown rot caused by Erwinia  chrysanthemi  was  reported  fromdifferent districts of Telangana. 

  Transfer of Technology 

  •  cafeteria   of   rice   technologies   were  demonstrated in 449 hectares area covering 19  states  and  five  major  rice  ecosystems of   the   country.   Out   of   449   Front   line demonstrations  (FLDs),  about  62%  were  conducted in irrigated rice ecosystem and 16.7% of FLDs were conducted in rainfed uplands.  More  than  10  %  of  FLDs  were organized in shallow lowlands and 2.23% in hill ecologies. About 5.68% of the FLDs were conducted in areas with problem soils.
  • During the year 2015-16, RKMP – IIRR in collaboration with C-DAC Hyderabad has developed a series of mobile apps for the benefit of Indian Extension Professionals and Farmers. Under Rice Knowledge Management    Portal    (RKMP)    activities, an extension interface / platform is being developed for extension professionals of the country.
  • As  part  of  ICAR-IRRI  workplan  GRiSP Theme         6,    an    innovative    participatory extension method (RiceCheck) has been piloted in Telangana and Tamil Nadu for identifying the key checks and practices.