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

since 1968, more than 1088 varieties including 72 hybrids have been released throught multi location testing for various agro-ecological systems prevalent across the country. Of these varieties, 503 are for irrigated areas, 133 for rainfed uplands, 194 for rainfed low lands, 44 for semi deep and 18 for deep water situation, 51 for high altitudes, 42 for saline and alkaline areas, 10 for aierobic, 19 for boro and 74 aromatic long and short grain varieties were released. More than 66 varieties have been developed by the Directorate of which 44 are central releases and the rest are released in different states. Globally 19 varieties released through AICRIP are being cultivated in 25 other rice growing countries.                                 


Significant achievements during 2015-2016


New Varieties and Hybrids released


Forty two varieties and four hybrids were released during 2015-16 by Central Sub Committee on Crop Standards, Notification and Release of Varieties (CSCCSN & RV) and State Varietal release Committee (SVRC). Central Sub Committee on Crop Standards, Notification and Release of Varieties released 15 varieties and three hybrids (KRH 4, KPH 460 and ADV 8301). The State Varietal Release Committees released 27  varieties;  for  Andhra  Pradesh  (1),  Gujarat (2), Karnataka (2), Kerala (5), Maharashtra (1), Madhya  Pradesh  (1),  Manipur  (1),  Telangana (3) Uttarakhand (4), and West Bengal (7). These high yielding varieties (HVYs) were released for cultivation in different ecologies viz., irrigated, aerobic, basmati, rainfed shallow low land, deep water and coastal saline areas. Many of these varieties  are  resistant/moderately  resistant  to biotic stresses.


Crop Improvement 

  • During   the   year   2015,   42   varietal,   one screening nursery and three hybrid rice trials were conducted in 682 experiments at 160 locations in 27 states and 2 union territories covering all the 7 zones in the country. In addition, 14 INGER nurseries involving 666 entries were tested at 58 centers.
  • Forty two varieties and four hybrids were released during 2015-16 by Central Sub Committee on Crop Standards, Notification and Release of Varieties (CSCCSN & RV) and State Varietal release Committee (SVRC).
  • The     varietal     identification     committee identified 14 varieties and 3 hybrids for release in different states across ecologies.
  • Of the 666 entries were tested in 14 INGER nurseries, 61 were found promising based on phenotypic acceptability and yield for multi location testing.
  • Breeder seed production (BSP) of 217 rice varieties and parental lines of 8 rice hybrids was organized at 43 centers across the country as per the DAC indents. A total production  of  7757.42  quintals  of  breeder seed  was  achieved  against  the  target  of 4328.42  quintals,  thus  marking  79%  more than the indented quantity. At IIRR center, 11 varieties and A,B and R lines of DRRH-3 were included in breeder seed production with a total production of 160.82 quintals against the target of 87.30 quintals




  • Among   nutrient   management   methods, Leaf Color Chart (LCC) based N application resulted in highest yield across all the locations closely followed     by   150% recommended fertilizer dose.
  • The    evaluation    of    crop    establishment methods   along   with   different   nutrient combinations over ten locations clearly indicated superiority of System of Rice Intensification (SRI)  (4.7  t/ha)  over  direct seeded with SRI principles (4.26 t/ha).
  • Site Specific Nutrient Management (SSNM) results based on Nutrient Expert revealed that, it was effective in increasing the yield in all the locations. Over all mean yield was 5.49 t/ha under same treatment followed by SSNM based on LCC (5.32 t/ha).
  • Mechanized System of Rice Intensification (SMSRI) showed better performance with overall  mean  grain  yield  in  all  locations (5.49 t/ha) followed by manual hand transplanting in lines and crop management for puddled transplanted rice (SRI) (5.26 t/ ha).
  • The economical and efficient dose of new combination herbicide i.e., Penoxsulam + Butachlor @717.5 g a.i./ha was effective for control of weeds in transplanted rice.
  • The high yielding varieties, Mandyavijaya and       Dhanrasi    exhibited    better    weed suppressing      ability.   Hybrids   and   long duration high yielding varieties were found to have better weed suppressing ability over short duration varieties.
  • RDF  +  split  application  of  N  resulted  in highest kharif rice yield (5.0 t/ha) followed by Azotobactor + PSB + brown manuring with Dhaincha + residue mulch @ 2 t/ha +75% RDF. Location specific recommended practices  of  NPK  +  ZnSO4  (100:50:50:20) at Mandya location recorded highest yield (7.91 t/ha) than rest of the treatments. 


Soil Science 


  • Yield  gap  analysis  highlighted  the  steep gaps in yield obtained from the fields receivingrecommended    fertiliser    dose (RDF) and farmer fertiliser practice (FFP) which necessitates site specific nutrient management to realize the uniform best. There was an increase in rice grain yield from 45 to 140 % in nutrient expert (NE) tool based recommended plots compared to absolute control. Increased rice yield to an extent of 60-95 % was recorded in gypsum ameliorated sodic soils in Kanpur.   The highest yields were recorded in DRR Dhan 43 (4.37 t/ha), CSR 36 (4.26 t/ha), GSR 129 (4.24 t/ha) and DRR Dhan 42 (4.19 t/ha) with 100% GR supplementation.
  • Genotypes  27P-63,  PA  6444  and  US  312 recorded significant rice yield in limed acid soils of Moncompu.     Increased yield due to  liming  was  also  recorded  in  GSR  148, GSR 119 and DRR Dhan 43 at Ranchi and Aghonibora, US 312, 27P36 and PA 6444 at Titabar.
  • The positive interaction effect of water and nutrients through increase in yield was recorded in aerobic rice. Water productivity (kg grain/ha mm water used) ranged from 4.4 5.1 kg grain/ha mm water. There was 10-14 % saving in water requirement with 100 and 75% cumulative pan evaporation (CPE) irrigation,  respectively  over  150% CPE. Application of nutrients up to 180 kg N, 60 kg P2O5 and 100 kg K2O/ha significantly improved the grain yield.
  • Consistent superiority of conjunctive use of RDF+5t FYM/ha was maintained at MTUand TTB in kharif and rabi  seasons in a long term experimentation of 27 years. The highest enzyme activity of phosphatase, glucosidase and dehydrogenase was observed in the  reatment receiving FYM at 10t/ha, NPKZnS + FYM,  and 50%NPK + 25% GM-N + 25% FYM-N in Maruteru and Titabar as well.
  • The   supremacy   of   transplanted   rice   in production  over  DSR  and  aerobic  rice  by an extent of 13-46% was witnessed across locations namely IIRR, Kanpur, Moncompu and  Puducherry.    In    case    of    nutrient management practices, maximum yields were obtained with RDF+ organics at IIRR and Puducherry and with RDF at Kanpur and Moncompu. 



Plant Physiology 


  • A  total  of  45  trials  of  plant  physiology AICRIP were conducted at 13 locations (6 funded and 7 voluntary centres) spread across India during Kharif 2015.
  • The mean grain yield recorded after harvest was increased by 9% by Imidazole (T2) application and Silixol treatment enhanced the mean grain yield for all varieties and locations  by  >8%  over  control  treatment (T1). Application of Imidazole and Silixol had reduced the incidence of Blast and both the treatments are effective.
  • IET  23356  recorded  higher  yield  under elevated     temperature   followed   by   the entries viz., IET 23354, PA-6129, IET 23947 IET 23339 and Somali. Based on the heat tolerance indices entries like DRRH-106, DRRH-107,  IET  24075,  Somali,  IET23979, and IET 24082 could be selected as relatively heat tolerant genotypes.
  • RUE and NUE in Rice: Sampada x Jaya/2 (G3), BPT-5204, Sampada and Varadhan x MTU1010/2 (G5) showed high NUE (<5% reduction in grain yield under low N). The lines derived from the crosses Varadhan x BPT 5204/10 (G2),Varadhan x BPT-5204/6 (G2),  Sampada  x  Jaya/3  (G4),  Varadhan and Jaya showed high YSi value with non- significant stability variance (σi2) performed well across locations and produced higher grain yield under 50 kg N ha-1.
  • Based on drought tolerance indices (DTI) the entries IET25108, IET24679, Narendra-97, IET25134, IET25141 and IET 25104 showed high DTI values and are relatively drought tolerant.
  • Based  on  multiple  abiotic  stress  tolerance under both laboratory and field conditions the entries   viz.,   IET23216,   Somali,   IR 82635-B-B47-1 and IET24674 were found to posses higher tolerance to salinity, drought submergence and low temperature. 







  • Pest  surveys  undertaken  at  29  locations revealed reports of outbreaks of BPH from Sakoli,Rajendranagar    and    Pantnagar. Caseworm damage to entire crop was observed at Sakoli, Moncompu and Karjat. Outbreak of army worm, Mythimna separata was reported at Khudwani.
  • Host plant resistance studies comprised of 1832  entries  evaluated  against   12   insect pests  in  201  valid  tests  (47  greenhouse reactions+154 field reactions). The results of these  reactions identified  52  entries (2.8% of the tested) as promising against various insect pests. Of these 6 entries (11.5%) were under retesting.
  • Insecticide Evaluation Trial (IET) carried out at 34 locations revealed that the performance of flubendiamide plus thiacloprid @ 120 g a.i./ha was at par with the standard check insecticide  rynaxypyr  against  stem  borer and  leaf  folder,  while  against  gall  midge all  the  treatments  were  at  par.  DPX-RAB 55  @  25  g  a.i./ha  followed  by  standard check dinotefuran were effective against planthoppers and leafhoppers.
  • Botanical     Insecticide     Evaluation     Trial (BIET) carried out at 24 locations revealed that Neemazal and Nimbecidine were found effective against stem borer. Against sucking pests-BPH,  WBPH  and  GLH,  botanicals were moderately effective. The botanical treatments were relatively safer to BPH predator-mirid bug than spiders.
  • In the trial on Effect of Planting Dates on Insect Pest incidence (EPDP) conducted at 20 locations pest incidence was moderate to severe across locations and relatively high in late planting.
  • Monitoring of species composition of stem borer revealed the presence of four species distributed   over   15   locations   with   YSB being dominant in 12 locations. Tetrastichus schoenobii was the dominant egg parasitoid followed by Trichogramma and Telenomus sp. Anagrus, Oligosita and Gonatocerus were the parasitoids reported on hopper eggs.
  • Ecological Engineering for Pest Management (EEPM) taken up in four locations showed that combination of organic manuring, alleyways, spacing and water management and growing of flowering plants on bunds increased  the  natural  enemy  populations like mirids, spiders and coccinellids and increased egg parasitisation.
  • Bio intensive pest management trial (BIPM) initiated in four locations showed that the pest incidence was either reduced in (BIPM) or on par compared to Farmers’ practice. There was also an increase in natural enemy population in the BIPM plots.
  • Yield Loss Estimation Trial (YLET) carried out at 7 locations revealed a significant negative   relationship   between   per   cent white  ears  due  to  stem  borer  and  grain yield. Pooled analysis showed that for every 10% increase in white ears there was 3.09 g reduction in grain yield per hill.
  • Integrated Pest Management special (IPMs) conducted at 10 locations revealed that adoption of IPM practices reduced the incidence  of  gall  midge,  BPH  and  stem borer damage at respective centers. IPM practices also reduced the severity of major rice diseases. Weed population and weed biomass  were  also considerably  reduced. Due to reduced pest incidence, grain yield was significantly high in IPM plots resulting in higher BC ratios.
  • Population dynamics of major insect pests assessed through light trap at 30 centers indicated that yellow stem borer and planthoppers continued to be major pests. 


 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. 


  Lead Research

Crop Improvement 

Plant Breeding


  • IET  23832  (RP  5886-HP  3-IR80463-B39-3), the first zinc rich variety was released by CVRC. It has high zinc content ( 22 ppm) in polished rice with mean yield of 5.2 t/ha and Recommended for Tamil Nadu, Andhra Pradesh, Telangana and Karnataka under irrigated ecology.
  • Five   future   generation   rice   lines   (FGR) possessing 6.5 to 7 t/ha yield potential were developed by utilizing tropical japonicas.
  • DRR dhan 46 with 22.7% yield gain over the check Sahbhagidhan was released by CVRC for the states of Bihar, Madhya Pradesh and Maharashtra. Two drought tolerant varieties namely Tripura Kharadhan 1 and Tripura Kharadhan 2 were released in the state of Tripura.
  • Chinsurah Nona Dhan 2, a derivative of O. nivara was found suitable for coastal saline areas and released in West Bengal.
  • Three lines ie., RP 5434-RAU 26-4, RP 5433- RAU-27-17 and RP 5433-RAU-19-2 with > 5 t/ha yield possessing good cold tolerance at seedling stage were identified.
  • An elite culture derived from the cross IR 64/ACC 2190 was found promising having resistance to planthoppers in field and green house conditions.
  • IET 24395 derived from the cross MTU 1075/ MTU 1010 was found to be superior over the best varietal and hybrid checks with >5% yield advantage and promoted to final year of testing in AVT-2- Late trial proposed during kharif, 2016.
  • Two  rice  based  products  viz.,  tooth  pain relief gel and mosquito repellent lotion were developed utilizing rice bran oil and brown rice extract. Rice based baked products namely  cake,  cookies,  pie  crusts,  muffins and doughnuts developed using rice bran oil spread (RBOS) were found to be superior in terms of consumer preference compared to  those  made  from  vanaspathi  ghee  and rice bran oil. Most of them contained low amount of transfats.
  • In vivo Glycemic acid (GI) studies revealed low GI in Dhanrasi (59.3) and Sampada (56.8) rice varieties.
  • Lines  with  good  kernel  elongation  after cooking (16 to 20 mm) were generated from the   crosses   Vasumathi/IET   19492,   Pusa 1121/IET 18990, Sugandhamati/IET 19492, IET 18033/ IET 18004 and IET 18033/ IET 19492 etc.
  • Three   land   races/wild   rices   of   North eastern region viz., Punshi, Moirang-Phou- Khokngangbi and Thangjing-Phou were found to be resistant with score 3 in Uniform Blast Nursery.
  • Genetic studies revealed quantitative nature of sheath blight tolerance. Employing SSRs putative quantitative trait loci were identified in the donor, RP 2068-18-3-5. A single minor QTL was detected on chromosome 5 with 7.8 % phenotypic variance.
  • Studies    on    grain    chalkiness    indicated decrease   in     amylose     content     while amylopectin increased with the increase in chalky area percentage. The grain density was less in varieties cultivated at high temperature


  Hybrid Rice


  • DRRH-92 successfully completed two years of testing in AICRIP trials (IHRT-MS). It is a high yielding hybrid with MS grain type having BPT 5204 grain type quality traits and medium duration. It showed yield superiority over the checks on in Zone III & VI.
  • IET  No  25352  (RP  5933-1-19-R-2)  derived from       partial      restorer      improvement programme was    promoted    to    AVT-1 medium duration trial. The IET 25352 registered yield superiority over best check in zone IV with 34.63% and in zone V with 12.18% and ranked third in the trial.
  • In  the  station  trial  during  kharif  2015,  10 promising  hybrids  viz.,  APMS  6A/TCP- 583, APMS 6A/TCP-647, IR 68897A/TCP- 643, APMS 6A/19-18R, IR 79156 A/19-18R, APMS  6A/7-65R,  APMS  6A/PRP-78,  IR 79156 A/ PRP 78, APMS 6A/PRP 123 and IR 79156 A/AR 9-21R were identified.
  • In the biotic & abiotic resistance breeding for parental line improvement, two popular maintainer lines viz., IR58025B and APMS6B were fortified with BB (Xa21) and blast (Pi2) resistance genes; attempts are being made to transfer the major drought tolerance QTL, qDTY12.1 and the low P tolerant QTL into the genetic background of the improved version of the elite restorer line, RPHR1005R, possessing Xa21 + Pi54.




  • Promising  Bt  transgenic  IR64  lines  with Cry1Ac and BPT 5204 transgenic lines with DREB1A are under evaluation of transgene integration through Thermal Asymmetric Interlaced Polymerase    Chain    Reaction (TAIL-PCR).
  • A sucrose synthase locus LOC_Os2g58480 was identified as polymorphic in two mapping populations viz., Rasi / Vibhava and BPT5204/PTB1, and expression studies revealed its association with yield per se.
  • A set of hyper-variable genomic and EST-SSR markers (n = 36), GATA motif specific SSR markers (n = 14) and hyper-variable genomic SSR markers (n = 52) have been identified to be highly informative with respect to assessment of parental genetic diversity and prediction of heterosis in the hybrids.
  • Targeting  a  20-bp  polymorphism  in  the candidate gene for WA-CMS trait, WA352, located in the mitochondrial genome of rice, a robust, co-dominant functional marker, named RMS-3-WA352 has been developed and validated among all the WA-CMS lines and maintainer lines of rice.
  • In  a  study  on  wild  abortive-cytoplasmic male sterility (WA-CMS), a co-dominant marker was developed named RMS-PPR9-1,targeting an indel polymorphism in fertility restorer gene Rf4, viz., PPR9.
  • Ten   SNP   markers   were   developed   by targeting four key genes playing important role in starch bios synthesis through KASPER assay. These SNP markers were validated in 100 indica genotypes and high allele call rate (95.31%) was achieved with distinct classes. 



Crop Production


  • The total labour input saving was 21 - 25 % in Mechanised System of Rice Intensification (MSRI) as compared to SRI. MSRI and SRI performed similarly with respect to B:C ratio.
  • Leaf  Color  Chart  (LCC)  based  nitrogen management practice resulted significantly higher   gross   returns,   net   returns   and B:C ratio as compared to other nitrogen management   practices   except   Soil   Test Crop Response (STCR) based nitrogen management practice. 
  • The  major  nutrient  uptake  in  grain  and straw increased with increase in fertilizer dosage along with addition of biofertilizers. The highest uptake of major nutrients was at 125% RDF + Biofertilizers and lowest with 75% RDF. 
  • In   bio-fortification  screening   trial,   lines- BLVR 86, 70, 349, RPHP 105, 106 were promising with respect to growth and yield parameters. 


 Soil Science 

  • Grain    yield    performance    and    several NUE indices indicated that the genotypes Tulasi,  Rasi  and  Vikas  from  early;  KRH2 and Varadhan from medium and Dhanrasi from long duration group were the most. GSR lines viz., HUANGHUAZHAN, TME 80518, and IRRI 105 exhibited efficiency at sub-optimal N level (N0) and responded to applied N (N 100).
  • N O       emissions       were       significantly reduced  from  the  rice  field  by  use  of  all the three nitrification inhibitors namely, Dicyandiamide (DCD), Neem Coated Urea (NCU) and Karanjinas compared with urea. Total N2O–N emissions were the highest with urea (0.73 kg/ha) followed by Karanjin + Urea (0.62 kg/ha). The highest inhibition of total N2O emission (53%) was recorded from plots treated with Urea + DCD.
  • The    inoculation    with    Gluconacetobacter diazotropicus was found to improve the seedling leaf water content (39.4%) and reduced         electrolyte   loss    (58.1%)   under water deficit stress in comparison with uninoculated   seedlings    which    showed 27.4% and 61.6%, respectively. Inoculation was also found to improve the recovery of plants after resuming irrigation. 


 Plant Physiology 

  • Correlation and regression studies indicated that  Pn    is    positively   associated   with carboxylation efficiency, gs  and  ETR.  The positive association with ETR and PN indicate that this parameter can be used to screen large number of genotypes as measuring ETR is faster. The PN was significantly associated with TDM and grain yield.
  • Multiple regression analysis based on lmg (Lindeman, Merenda and Gold) metric indicated that  the carboxylation  efficiency (PN/Ci)contributed  >30%  to  the  R2 value of 0.86 followed by transpiration (14%) and ETR(11%).
  • Based on the ideotype breeding experiments in rice, it was found that KRH-2, PHB-71 and 13-7 (hybrids cluster), Jaya, Swarna and Sampada (indica cluster) and TJP-27, TJP- 197 and TJP-139 (tropical japonica cluster) can serve as potential donors to get increased grain yields with good grain quality and ideal morpho-physiological traits associated with grain yield. 



Crop Protection



  • Of   various   breeding   lines   and   germplasm accessions evaluated against hoppers, PTB 33, RP 2068, T12 and IC216750 were highly resistant to BPH, Nilaparvata lugens. The entries M O1, IC75864 and IC215298 were resistant to WBPH, Sogatella furcifera.
  • The back cross inbred line RP5588-B-B-B-63 developed   from   O.   glaberrima   recorded low damage for stem borer, Scirpophaga incertulas suggesting antibiosis as one of the mechanisms of resistance.
  • RP5588-B-B-B-32 derived from O.glaberrima and a BPT mutant been identified as a new source of resistance to Asian rice gall midge, Orseolia oryzae with nil damage under greenhouse.
  • Thirteen   Backcross   Inbred   Lines   (BILS) derived from a cross between Swarna (O.sativa)  and  a  wild  accession  O.  nivara – 81848, 11 mutant lines and 7 germplasm entries recorded low damage by leaf folder, Cnaphalocrocis medinalis.
  •  A newer insecticide BCS CL 73507 SC 200 was found effective in reducing the damage by stem borer, S. incertulas and leaf folder, C. medinalis in rice under field conditions.
  • Lemongrass,      eucalyptus,oregano      and camphor oils at 0.2% significantly reduced stem borer(S. incertulas) and leaf folder, C. medinalis  damage  and  their  efficacy  was comparable   with   insecticide   rynaxypyr.Olfactory response of BPH, N.lugens to various oils revealed that eucalyptus oil at 10µl and neem oil at 20 µl were highly repellent to female hoppers. In EAG test, highest reaction (repellent) by hispa, Dicladispa armigera was recorded in eucalyptus oil followed by camphor and rosemary oils.
  • The     mean     parasitisation     of     brown planthopper,  N.lugens  eggs  near  a  border of yellow marigold, orange marigold and Gaillardia was significantly higher when compared to parasitisation without flower border. Laboratory studies on biology of Anthocorid predator revealed that the bug was  predominantly  an  egg  predator  on BPH, N.lugens.
  • The pink stem borer (PSB), Sesamia inferens lure resulted in cumulative catches of PSB. Entomopathogenic       nematode       (EPN), Heterorhabditis      indica          significantly reduced white ear damage caused by the yellow   stem   borer   in   field   evaluation. An   indigenous    EPN,    isolate    Drr-Ma3 was identified as Metarhabditis amsactae based on morphological and molecular characterization.
  • Two genotypes (LD24 and Khao Pahk Maw) showed highly resistant reaction to rice root- knot nematode, Meloidogyne graminicola. Nematode analyses in SRI system revealed that the total nematode abundance was more in SRI compared to the normal transplanted system. 





  • The blast resistant genes like Pi1, Pi2 and Pi54 were introgressed into elite cultivar Samba Mahsuri and Introgressed lines are under evaluation for blast resistance.
  • Sheath  blight  tolerant  lines  viz.,  SM-801, Ngonolasha,        Wazuho   phek,   Gumdhan, BG-380-2, RP-2068-18-3-5, Phougak and Thangmoi        were identified   from   North Eastern India.
  • Among the cultivars evaluated under glass house conditions on three different sowing dates viz., early, mid and late for false smut disease, the genotype HKR 47 showed high number of smut balls (10 Nos.)
  • Isolated      microbial      antagonist’s      viz., Fluorescent Pseudomonas sp, Trichoderma viride,  Penicillium  sp.  and  Aspergillus  sp. and these were tested for their antagonistic activity   against   Rhizoctonia   solani   under in vitro conditions and found effective in suppressing the growth of the fungus.
  • Pyramiding of Xa21 and Xa38 in background of Samba Mahsuri and APMS6B is being carried out and lines are at BC4F1 (Samba Mahsuri) and BC3F1 (APMS6B).
  • Genotyping and phenotyping of BB isolate 392 Xoo strains have been completed and categorized into 22 pathotypes.
  • The      combination      fungicide      ICF-110 (tricyclazole 45% + hexaconazole 10% WG) 1.0g/l was identified as an effective molecule to reduce the blast and sheath blight disease of rice. 


Transfer of Technology


  • The   major   threats   to   sustainable   rice production         technologies   in   Chattisgarh plain  zone  as  perceived  by  farmers  are non     availability    of  resistant    varieties, poor  drainage,  nutrient  deficiency,  slow seed                   replacement,      labour      problems, non availability of micro nutrients and biofertilizers in time and increased cost of tubewells.
  • Gender    dimensions    study    in    farmers indicated that the major work related to agriculture was predominantly decided by male members of the family. Regarding the climate change they perceived that in Ranga Reddy district 2013 was a good year for rice cultivation, followed by 2014 as average and 2015 as a bad year in which rice area was reduced by 40 % and 75 %, respectively.
  • The  video  extension  module  studies  in Telangana and Rice check programme studies  in  Tamil  Nadu  indicated  that  in both these provinces, impact of knowledge interventions was found to be significant when blended with field demonstrations.
  • Adequate   training   in   the   agribusiness related area, effective marketing strategies, extension efforts    such    as    technology demonstration and dissemination strategies, value addition initiatives were the critical success        factors    in    the    public-private partnership in agricultural extension and advisory services.
  • The baseline study in village Ankushapur District Karimnagar revealed that though farmers  are  aware  of  IPM  as  a  concept, they are not aware of the important IPM components to be followed in rice.