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University of Agricultural Sciences, Chamrajanagar, Karnataka


Historical background:

ICAR-AICRP on cotton was established in the Chamarajanagar during the year 2014-15. under the University of Agricultural Sciences, Bangalore, funded by ICAR-CICR, Regional Station, Coimbatore. The main objectives of the centre is to develop improved genotypes, agro-techniques for maximizing production and effective pest and disease management practices for barbadense and interspecific (H x B) cotton under rainfed conditions.

Chamarajanagar and Mysore districts are the traditional Extra Long Staple (ELS) cotton growing regions of Karnataka. In this region, It is being cultivated in an area of more than 0.6 lakh hectare. The crop area is mainly confined to H.D. Kote and Nanjangud Taluks in Mysore District and Gundlupet and Kollegal Taluks of Chamarajanagar District. These areas agro climatically lies in Southern Transitional Zone and Southern Dry Zone of Karnataka, respectively. Taking the advantage of pre-monsoon showers the farmers take up sowing in the months of April to May-15. The crop is mainly cultivated under rainfed condition.

Climatic condition

The average annual rainfall of ICAR-All India Coordinated Research Project on Cotton, Haradanahalli farm, Chamarajanagara is 730 mm. The station receives bimodal pattern of rainfall distribution. Where, the first peak of rainfall received during the months of April-May and the second peak during September-October. Erratic rainfall distribution and prolonged dry spells were observed during June and July month are common occurrence in the station. The highest and lowest mean maximum temperature recorded was 36.97°C and 30.19°C in the month of May and November respectively, whereas the highest and lowest mean minimum temperature were observed in the months of May (19.44°C) and January (11.0°C), respectively. The mean maximum relative humidity ranged between 73.28 % and 85.28 % during the month of February and August. While, the mean minimum relative humidity ranged from 16.37 per cent in November and 30.22 per cent in May.

Major cotton growing districts:

Dharwad, Raichur, Gadag, Gulbarga, Yadgiri, Chitradurga, Davanagere, Bijapur, Haveri, Ballari, Belagavi, Chamarajanagar and Mysore.

Objectives

  • To develop improved genotypes best suited for different agro-climatic conditions.
  • To develop agro-techniques for maximizing production under different situations
  • To develop economic and effective pest management practices under different agro-biological conditions.

Name of the ScientistDr. Shashi Kumar C
DesignationAssistant Agronomist
DisciplineAgronomy
Year Since ICAR-AICRP
on Cotton
6
Contact Details AICRP on Cotton, Haradanahalli Farm,
Chamarajanagar, Karnataka-571127
Mob:9980870502
E-mail:aicrpcottonchn@gmail.com
shashiagron76@gmail.com

Name of the ScientistDr. Shivaray Navi
DesignationAssistant Entomologist
DisciplineAgril. Entomology
Year Since ICAR-AICRP
on Cotton
5
Contact Details :AICRP on Cotton
Haradanahalli Farm,
Chamarajanagar, Karnataka-571127
Mob:9008472394
Email id:aicrpcottonchn@gmail.com
naviss1977@gmail.com

Workshops/Conferences/Symposium conducted between 2018-23


  • Dr. Shashi Kumar. C, Assistant Agronomist, attended training on Application of R.S and GIS in Agricultural Development from 06-02-17 to 10-02 -17 at MANAGE, Hyderabad
  • Dr. Shashi Kumar. C, Assistant Agronomist, attended workshop on Digital Field Book on 21-09-2019 at IIMR, Hyderabad, Chamarajanagar
  • Dr. Shashi Kumar. C, Assistant Agronomist, attended training on Cutting edge technologies for weed management from 09-03-19 to 15-03-19 at UAHS, Shivamogga
  • Dr. Shashi Kumar. C, Assistant Agronomist, attended virtual training on R – Programming from 14-09-20 to 25-09-20 at MGR Educational and Research Institute, Chennai.
  • Dr. Shashi Kumar. C, Assistant Agronomist, attended virtual training on Research Methodology from 20-07-20 to 27-07-20 at MGR Educational and Research Institute, Chennai.
  • Dr. Shashi Kumar. C, Assistant Agronomist, attended virtual training on Plant physiological paradigms towards agricultural sustainability under climate change on 15-09-20 at BAU, Bhagalpur.
  • Dr. Shivaray Navi, Assistant Entomologist attended webinar by ICAR-NRCB on Precision farming in Banana on 25.07.20 at ICAR-National Research Centre for Banana, Tiruchipalli, Tamil Nadu
  • Dr. Shivaray Navi, Assistant Entomologist attended webinar by ICAR-NRCB on Integrated Insect Pests and Nematodes Management in Banana on 04.08.20 at ICAR-National Research Centre for Banana, Tiruchipalli, Tamil Nadu
  • Dr. Shivaray Navi, Assistant Entomologist attended online Symposium on Plant protection from 25.8.20 to 28.8.20 by UAS, Bangalore
  • Dr. Shivaray Navi, Assistant Entomologist attended Training Programme on R – Programming from 14.09.2020 to 25.09.20 at Faculty of Humanities and Science, Adayalampattu Phase - II campus
  • Dr. Shivaray Navi, Assistant Entomologist attended International Webinar on Plant Physiological Paradigms towards Agricultural Sustainability Under Climate Change” on 15.9.20 by Bihar Agricultural University, Sabour, Bhagalpur
  • Dr. Shivaray Navi, Assistant Entomologist attended national workshop on “Fundamental Concepts and Applications of Research Methodology” form 6.10.20 to 7.10.20 at Bihar Agricultural University, Sabour, Bhagalpur
  • Dr. Shivaray Navi, Assistant Entomologist attended Online training programme on “Recent Advances in Entomology – New Dimensions to Invigorate the Insect Pest Management” from 7.12.20 to 18.12.20 by University of Horticultural Sciences, Bagalkot College of Horticutlure, Bidar department of entomology
  • Dr. Shivaray Navi, Assistant Entomologist attended National Webinar on Plant health management –Sustainable Agriculture on 16.12.20 by Dept, of Entomology, Agricultural College, Bapatla

Publications


  • AMBARISH.S, SHASHIKUMAR.C, SHEKAR.B. G AND SOMU.G, 2017, Field evaluation of Bio pesticides and chemical insecticides against sucking insect pest of Bt cotton under rainfed condition. Trends in bio sciences 10(17): 3052-3054
  • AMBARISH.S, SHASHIKUMAR.C, SOMU.G, AND SHIVARAY NAVI, 2017, Studies on the bio efficacy of new insecticide molecule against insect pest in cotton. Journal of entomology and zoology studies 5(6): 544-548
  • SHIVARAY NAVI, SHASHI KUMAR, C., SOMU, G., AMBARISH, S AND ABADULRAJAKCHADACHANAKAR, 2018, Evaluation of new molecules against sucking pests and bollworms in cotton. Int. J. of Chem. Studies. 6(3): 1775-1779
  • SHASHI KUMAR, C. AND RAMACHANDRA, C., 2019, Growth and Yield of Cotton as Influenced by Planting Geometry and Genotypes under High Density Planting System. Int.J. Curr.Microbiol.App.Sci 8(5): 2073-2077
  • SHASHI KUMAR, C. AND RAMACHANDRA, C.,2019, Effect of planting geometry and varieties on yield and economics of cotton under rainfed conditions of southern dry zone of Karnataka. Int J Chem Stud; 7(3): 2564-2566
  • DIVYA, B., SHIVARAY NAVI, SUGEETHA, G., SHASHI KUMAR, C., SOMU, G., AND PATEL, V.N, 2020, Studies on seasonal incidesnce of sucking pests and pink bollworm, Pectinaphoragossypiella (saunders) in in cotton (Gossypiumspp.). Int J Chem Stud; 8(1): 228-230
  • DIVYA, B., SHIVARAY NAVI, SUGEETHA, G., VIJAYKUMAR, L., SHASHI KUMAR, C., SOMU, G., AND PATEL, V.N, 2020, Evaluation of newer molecules for the management of pink bollworm,Pectinophoragossypiella(Saunders) (Lepidoptera: Gelechiidae) in cotton (Gossypiumspp.). J. Ento. & Zoo. Stud. 8(1): 383-386
  • SHIVARAY NAVI., SHASHI KUMAR, C., SOMU, G., Meena,N., Krishna Kishore,R., AND Rajendra,B., 2021, Population dynamics of insect pests of cotton in Southern dry zone of Karnataka. J. Ento. & Zoo. Stud. 9(1): 1402-1405
  • SHIVARAY NAVI., SHASHI KUMAR, C., SOMU, G., Meena,N., Krishna Kishore,R., AND Rajendra,B., 2021, Effect of Pyriproxifen 10% EW against sucking insect pest population in cotton. Int, Jou of Che. Stud. 9(1): 1313-1316
  • SAHANA K.B., SHIVARAY NAVI., VIJAYKUMAR L., SHASHI KUMAR, C., SANATH KUMAR V B., SOMU, G AND CHIKKARUGI N M., 2022, Incidence of mired bug species complex in Bt and non Bt cotton genotypes, Int, Jou of entomology online publication. Ref no e22220
  • SAHANA K.B., SHIVARAY NAVI., VIJAYKUMAR L., SHASHI KUMAR, C., SANATH KUMAR V B., SOMU, G AND CHIKKARUGI N M., 2022, Resistance to mirid bug Creontiadesbiseratense (Distant) in cotton, Int, Jou of entomology online publication. Ref no e22222

Extension Booklet:


  • Integrated pest and disease management in cotton; ShivarayNavi, Shashi Kumar, C., Somu G. Rajendra B., 2018,
  • Improved cultivation practices for cotton; Shashi Kumar, C., Shivaray Navi., Somu G., Rajendra B., Meena.N.,2020,

Leaflets in local language (Kannada)


  • Improved cotton cultivation practices
  • Integrated disease management in cotton
  • Integrated pest management in cotton
  • Physiological disorders in cotton and their management
  • Nutrient Deficiency symptoms in cotton and their management
  • Pink boll warm management in cotton

Posters on cotton in local language (Kannada)


  • Improved cotton cultivation practices
  • Integrated disease management in cotton
  • Integrated pest management in cotton

Trials Conducted


Sl.No. Discipline 2018-19 2019-20 2020-21 2021-22 2022-23 Total
01 Agronomy 03 04 05 06 08 26
02 Entomology 06 05 05 05 06 27
03 Breeding - - 04 02 02 08
04 Total 09 09 14 13 16 61

Breeding


2020-21

  • Combined Evaluation trial of Interspecific H X B Hybrids (New + Promoted Entries)- Irrigated
  • Br – 13 a PVT G. barbadense
  • Br – 14 a CVT G. barbadense
  • Br-15 a CHT H X B

2021-22

  • Combined Evaluation trial of Inter-specific H X B Hybrids (New + Promoted Entries)- Irrigated
  • Br – 14 a CVT G. barbadense

    2022-23

  • Combined Evaluation trial of Inter-specific H X B Hybrids (New + Promoted Entries)- Irrigated
  • Br – 14 a CVT G. barbadense
  • Agronomy


    2018-19

    • Agronomy II: Weed Management in Cotton.
    • Agronomy IIIB: Enhancing Nitrogen use efficiency in Bt cotton.
    • Agronomy V: Conservation agriculture in cotton based cropping system

    2019-20

    • Agronomy II: Standardization of sowing window in cotton for southern dry zone of Karnataka
    • Agronomy IIIB: Enhancing Nitrogen use efficiency in Bt cotton
    • Agronomy V: Conservation agriculture in cotton based cropping system
    • Agronomy X: Effect of Bio stimulant on growth and development of cotton

    2020-21

    • AGR II A: Standardization of sowing window in cotton for Southern Dry Zone of Karnataka
    • AGR II B: Developing Package for inter specific ELS Bt hybrid
    • Agronomy V: Conservation agriculture in cotton based cropping system
    • Agronomy VII: Input use pattern & cost of cultivation
    • Agronomy X: Multi-tier cropping system to enhance resource utilization, profitability and sustainability of Bt cotton (Gossypiumhirsutum) production system

    2021-22

    • AGR II A: Standardization of sowing window in cotton for Southern Dry Zone of Karnataka
    • AGR II B: Developing Package for inter specific ELS Bt hybrid
    • Agronomy V: Conservation agriculture in cotton based cropping system
    • Agronomy VII: Input use pattern & cost of cultivation
    • Agronomy X: Multi-tier cropping system to enhance resource utilization, profitability and sustainability of Bt cotton (Gossypiumhirsutum) production system
    • Agronomy XII: Large scale testing of proven intervention

    2022-23

    • Agronomy IB: Agronomic requirements of promising pre-release Bt hybrids
    • AGR II A: Standardization of sowing window in cotton for southern dry zone of Karnataka
    • AGR II B: Developing Package for inter specific ELS Bt hybrid
    • AGR II C Growth and yield performance of barbadense varieties
    • Agronomy V: Conservation agriculture in cotton-based cropping system
    • Agronomy VII: Input use pattern & cost of cultivation
    • Agronomy X: Multi-tier cropping system to enhance resource utilization, profitability and sustainability of Bt cotton (Gossypiumhirsutum) production system
    • Agronomy XII Drought and water logging Studies in cotton

    Entomology:


    2018-19

    • Ent 1a: Screening of breeding material for resistance to insect pests (National and Zonal Trials)
    • Ent 1b: Advanced screening of promising entries for development of repository for sucking pests
    • Ent 2: Population dynamics to develop suitable forecasting model
    • Ent 3: Survey for key and emerging pests in cotton in farmers’ fields for weekly advisory
    • Ent 4: Determination of ETLs and estimation of yield losses for cotton pink bollworm.
    • Ent 6: Validation of IPM module for PBW-NEW

    2019-20

    • Ent 1a: Screening of breeding material for resistance to insect pests (National and Zonal Trials)
    • Ent. 2: Population dynamics to develop suitable forecasting model
    • Ent. 3: Survey for key and emerging pests in cotton in Farmers Field for weekly advisory
    • Ent 4: Estimation of yield loss and management of cotton pink bollworm.
    • Ent 5: Validation of IPM module for cotton insect pests

    2020-21

    • Ent. 1a: Screening of breeding material for resistance to insect pests (National & Zonal Trials)
    • Ent. 2: Seasonal dynamics of insect population to develop suitable forecasting model
    • Ent. 3: Survey and surveillance for key and emerging pests in cotton in Farmers Field for weekly advisory
    • Ent 4: Management of sucking pests in cotton
    • Ent-5: Validation of IPM module for Bollworms (H.armigera,Eariassp,P.gossypiella and Spodopteralitura

    2021-22

    • Ent 1a: Screening of breeding material for resistance to insect pests (National and Zonal Trials)
    • Ent. 2: Seasonal dynamics to develop suitable forecasting model
    • Ent. 3: Survey for key and emerging pests in cotton in farmers fields for weekly advisory
    • Ent 4: Management of sucking pests in cotton.
    • Ent 6: Evaluation of prominent insecticides against bollworm complex of cotton

    2022-23

    • Ent 1a: Screening of breeding material for resistance to insect pests (National and Zonal Trials)
    • Ent. 2: Seasonal dynamics to develop suitable forecasting model
    • Ent. 3: Survey for key and emerging pests in cotton in farmers fields for weekly advisory
    • Ent 4: Integrated pest management in cotton.
    • Ent 6: Evaluation of prominent and label claimed insecticides against bollworm complex of cotton
    • Ent 7: Microbial based volatiles for sucking pest management in Bt cotton (Sponsored Technology)

    Research Achievements


    • Conservation agriculture in cotton based cropping system: Permanent bed system with zero tillage and 100 % residue management (T7) has recorded higher seed cotton yield (1697 kg/ha) and net returns (Rs. 19165/ha).
    • Developing package for inter specific ELS Bt cotton hybrid: Bahubali Bt cotton hybrid has recorded significantly higher seed cotton yield (1525 kg/ha) than DCH-32 Bt cotton. Sowing at 67.5 x 45 cm spacing recorded significantly higher seed cotton yield (1447 kg/ha) than 90 x 60 cm. Application of 150 % RDN recorded higher seed cotton yield (1573kg/ha) than their lower levels.
    • Multi-tier cropping system to enhance resource utilization, profitability and sustainability of Bt cotton production system: Paired row planting of cotton with two rows of black gram has recorded significantly higher seed cotton yield (1510 kg/ha). Whereas, gross returns (Rs. 201356/ha) and net returns (Rs. 103531/ha) were maximum in cotton + cluster bean intercropping system.
    • Agronomic requirements of promising pre-release Bt hybrids: Spacing at 90 x 45 cm and application of 125% RDN has recorded significantly higher seed cotton yield of 1772 and 1857 kg/ha., respectively.
    • Study on input use pattern and cost of cultivation of cotton (survey): Out of total cost of cultivation, 32% of the cost is spent on purchase of agri-inputs, while 68 % of the amount is spent on labour and power cost.
    • Growth and yield of cotton as influenced by land configurations and drought management practices: Sowing cotton in ridges and furrow has recorded significantly higher seed cotton yield (1504 kg/ha), followed by broad bed and furrow (1389 kg/ha).
    • Combined evaluation trial of inter- specific H x B Hybrids (New + Promoted Entries) Irrigated:
    • Higher seed cotton yield was recorded in the entry 22091 (23.3 q/ha), followed by 22094 (21.7 q) and 22096 (21.6 q/ha).
    • Screening of breeding material for resistance to insect pests of cotton: Totally 6 genotypes were screened for their reaction to insect pests complex. NDLH 1938 was assigned with injury grade I. CET HxB-22091, 22094, 22096 and Bahubali BG-II were assigned as injury grade II and 22092, 22093, 22095 and DCH 32 were assigned as injury grade III.
    • c: Non Bt crop suffered maximum due to PBW incidence by recording higher green boll damage (19.23%), PBW larvae (13.12/50 bolls),open boll damage (30.23%) and locule damage (32.50%) as compared to Bt crop.
    • Weekly Pest Status on Cotton in farmer’s fields for whole year : Among the sucking pests, leafhoppers crossed ETL in 93 locations starting from June month. Similarly, 43 locations were suffered from heavy aphids incidence. The incidence of PBW was noticed during August itself and crossed ETL in 13 locations.
    • Integrated Pest Management in cotton: The results evidenced that all the sucking pests viz., jassids, thrips and aphids were significantly low in IPM plots which ranges from 1.08 to 19.20/3 leaves. Lowest number of mean PBW larvae were noticed in IPM block (2.5 larvae/20 bolls) as compared to FP (7.64 larvae/20 bolls).
    • Evaluation of prominent and label claimed insecticides against bollworm complex of cotton: Fenpropathrin 10 EC @ 500 ml/ha was found superior over all other treatments by recording significantly least number of PBW larvae/20 bolls, green boll damage (%), open boll damage (%) and locule damage (%) with higher seed cotton yield (18.95 q/ha).
    • Evaluation of Microbial based volatiles for sucking pest management in Bt Cotton: The pooled data of all four observations indicated that large number of whiteflies, jassids and thrips were trapped in all treatments except in T10, where lower sucking pest population was recorded. Since all sucking pests were trapped in all traps, there was no clear-cut difference between the lures for attracting the particular pest.

    Technologies Developed


    • Tank mixture (Quizalofopethyl 50 g a.i/ha+ Pyrithiobac Sodium @ 62.5g a.i/ha) at 2-4 weed leaf stage + one hoeing has been accepted in the Annual Technical Meet of Agronomy, held at GKVK on 5-7, Feb-2019 for inclusion in Package of Practice
    • Title of the Experiment: Management of sucking pests (whiteflies,thrips,leafhoppers and aphids) in cotton by newer molecules: Among different insecticide tested, Flonicamid 50 % WG @ 0.3g/l was found best by recording least population of sucking pests in cotton (whiteflies,thrips,leafhoppers and aphids) with higher yield (21.48q/ha and 20.020 q/ha during 2020-21 and 2021-22,respectivelly) and maximum B:C ratio of 2.45 and 3.14 during 2020-21 and 2021-22, respectivelly.
    • Title of the Experiment: 2. Management of Mirid bug in cotton: Among the different insecticides tested, Dinotefuran 20 SG @ 0.30 g/lt was found best by recording least number of mirid bugs /10 squares/plant and square shedding per plant with higher yield during 2020-21 and 2021-22.
    • Inclusion in POP: For the management of miridbugs, spray Dinotefuran 20 SG @ 0.30 g/lt of water.

    GENETICS AND PLANT BREEDING:RESEARCH ACHIVEMENTS

    VarietyLHDP 1
    Duration (days) 145 – 150
    Seed Cotton Yield (q/ha)28-30
    G O T (%)37 – 38
    2.5 % span length (mm)27 – 28
    Special characters: Compact plant type with medium tolerance to jassids, wide adaptability with good fiber qualities.
    VarietyLAHB Cotton -1
    Year of Release 2019
    Duration (days) 180-195
    Seed Cotton Yield (q/ha)20-22
    G O T (%)30.1
    2.5 % span length (mm)37.1
    Special characters: LAHB Cotton- 1 is an inter specific hybrid of G. hirsutum x G, barbadense with a ginning out turn of 30.1% with fine fibre quality of 3.2 micrograms/ inch and tenacity of 35.9 g/tex.
    VarietyLHDP Cotton -5
    Year of Release 2022
    Duration (days) 140-150
    Seed Cotton Yield (q/ha)28-30
    G O T (%)37.6
    2.5 % span length (mm)27.5
    Special characters: A new plant type developed for high density planting system, a closer spacing of 60 cm x 15 cm has to be adopted instead of 105cm x 60 cm. It is a short statured (100-110 cm), compact, medium duration type with very less number of monopods, determinate type with synchronous maturity. Tolenet to jassids and bacterial leaf spot.

    AGRONOMY:RESEARCH ACHIVEMENTS

    • Cotton crop residue incorporation @ 5 t ha-1 + application of 75% RDF + application of decomposing mycorrhiza @ 2 kg ha-1 recorded comparable yield (4070 kg ha-1) with 100% RDF (4506 kg ha-1) and improved soil microbial population and soil organic carbon content.
    • Application of 2% potassium nitrate 4 times at weekly interval against drought at 75 DAS, improved the drought tolerance indices and seed cotton yield (2009 kg ha-1) over control (1748 kg ha-1).
    • Application of biochar prepared from cotton stalks @ 2 t ha-1 along with RDF (150-60-60 kg ha-1) and microbial consortium resulted in significantly higher seed cotton yield of 2838 kg ha-1 and a BC ratio of 1.59, besides increasing the microbial populations of the soil and its fertility status, thus sustained soil health when compared to RDF (1423 kg ha -1).
    • The mean seed cotton yield over 31 years was 2026 kg ha-1 with integrated application of RDF along with FYM @ 10 t ha -1 which was 19% more over 100 % RDF, 13 % over 150 % RDF and 16 % over 200 % RDF.
    • The results of Technology for organic cotton production revealed that highest seed cotton yield (1553 kg/ha mean of four years from 2016-2020) recorded when RDN applied through in organic sources followed by seed treatment and soil application of recommended bio fertilizers and Foliar application of PPFM + Neem cake @ 50 kg/ha + intercropping with black gram (1385 kg/ha).
    • Paired row of Bt cotton + 2 rows of red gram resulted in higher seed cotton equivalent yield (2662 kg/ha) followed by paired row of Bt cotton+1 row red gram + 1 row foxtail millet (2570 kg/ha) in multi storied cropping system of cotton.

    ENTOMOLOGY :RESEARCH ACHIVEMENTS

    • Bifenthrin 10% EC @ 1 ml L-1 of water is effective in managing pink bollworm (1430 kg ha -1) and yield increase of 55% over control (920 kg ha-1) was recorded. Green boll locule damage of 19.7 % was recorded in bifenthrin 10% EC treatment as against 66% in control at RARS, Lam.
    • Spinetoram 10% + sulfoxaflor 30% WG @ 0.7 ml (3.2/3 leaves), spinetoram 10% +sulfoxaflor 30% WG @ 0.6 ml L-1 of water (3.83/3 leaves), spinetoram @ 0.6 ml L-1 of water (5.03/3 leaves) and sulfoxaflor 21.8 SC @ 0.6 ml L-1 of water (3.8/3 leaves) were effective in reducing the leafhopper population in cotton. Whereas, spinetoram 10% + sulfoxaflor 30% WG @ 0.7 ml L-1 of water (17.22%), pyriproxyfen 10 EC @ 0.7 ml L-1 (28.11%) and sulfoxaflor 21.8 SC @ 0.6 ml L-1 of water (19.5%) were found effective in reducing the pink bollworm damage in green bolls, besides realizing the highest seed cotton yield.
    • Refined IPM package for pink bollworm on Bt cotton.
      • Timely sowing and recommended sowing in shortest window.
      • Installation of pheromone traps @ 10-15 ha-1 for monitoring and 25-40 for mass trapping at 45 DAS.
      • Spraying of 5% NSKE
      • Release of Trichogrammabactrae@ 1,50,000 ha-1(thrice at weekly interval) starting from 50 DAS.
      • ETL (10 % fruiting body damage) based application of recommended insecticides. Pyridalyl 10EC @750 ml/ha and Fenproprathrin 30 EC @ 750 ml/ha were found effective for pink boll worm and included in the package.
      • Timely termination of crop
    • Refined IPM package for sucking pests on Bt cotton
      • Use of yellow and blue sticky traps at 30 DAS @25 ha-1
      • Stem application of monocrotophos 36 SL @ 1:4 dilution at 30 and 45 DAS and with imidacloprid 17.8 SL @1:20 dilution at 60 DAS.
      • Restrict the use of neonicotinoids during first 60 days.
      • ETL based spray of flonicamid 50 WG @ 0.3 g L-1 and diafenthiuron 50% WP @ 1.25 g L-1 of water.
      • Do not use same insecticide twice.
    • Entry, CCB 143B showed resistance to Corynespora leaf spot, grey mildew and rust; CNH 17395 to grey mildew and rust CNH 20-31 to Corynespora leaf spot and rust; Entries viz., SBSD 5-6, CCB 51, CCB 143B and DB 1801 to Corynespora leaf spot and grey mildew
    • Highest yield of 19.26q/ha was recorded in Kresoxim methyl 44.3% SC @1ml/l which was on par with Propiconazole 25%EC @ 1ml/l 919.05q/ha) and Propineb 70%WP @ 2.5g/l (18q/ha) by reducing foliar diseases and boll rot. Highest BCR of 1.73 was recorded with Propiconazole 25% EC @ 1ml/l followed by Propineb 70%WP @ 2.5g/l (1.7) and Kresoxim methyl 44.3% SC @1ml/l (1.7) as against control (1.08). Similar trend was observed for IBCR of 20.72, 14.71 and 8.66 respectively.

    PATHOLOGY :RESEARCH ACHIVEMENTS

    2018

    • I published 14 research articles in refereed journals (3 Scopus)
    • I contributed to cotton variety, LHDP 1, which was approved during the Central Variety Release Committee meeting, AGM 2019 AICRP on Cotton, 30 - 31 May 2019.
    • I contributed to the publication on the Status of Cotton Research in ANGRAU which was released during Annual Group Meeting 2019 at RARS, Lam, Guntur.
    • Validated the weather parameters influencing major diseases of cotton viz., Alternaria leaf spot, bacterial blight, grey mildew and rust.
    • Observed that in spite of high incidence of TSVD, intensity was very low.
    • One M. Sc. (Ag) student in the Department of Seed Science & Technology; one M. Sc. (Ag) student in the Department of Plant Pathology successfully completed their degrees under my supervision.
    • I contributed to the conduct of ICM plots of one acre each, in cotton and regular montoring to suggest timely measures for achieving high yields.
    • I trained extension staff, farmers and input dealers in plant protection.
    • I participated in diagnostic field visits, especially for Pink boll worm and suggested measures.

    2019

    • I published six research articles in refereed journals (1 Scopus) and guided students to present their work during Conferences.
    • I contributed to the inter specific hybrid (G. hirsutum x G. barbadense) LAHB 1, which was proposed and approved during the Central Variety Release Committee meeting, AGM 2020 AICRP on Cotton, 18 - 19 May 2020.
    • I contributed to the Technical Bulletin on Integrated Disease Management (IDM) in cotton, which was released during AGM 2020 AICRP on Cotton through Video conference, 18 - 19 May 2020.
    • One M. Sc. (Ag) student in the Department of Seed Science & Technology; one M. Sc. (Ag) and one Ph. D students in the Department of Plant Pathology successfully completed their degrees under my supervision. One M. Sc. (Ag) submitted thesis in Plant Pathology.
    • I was resource person for trainings on plant protection, especially, IPM in cotton.
    • I contributed to publication of booklets/brochures/bulletins on cotton for the benefit of cotton farmers.
    • I was major contributor for the Information Bulletin on Cotton (Telugu) published by ANGRAU.
    • I participated in diagnostic field visits, especially for Pink boll worm and suggested measures.

    2020

    • I published 11 research articles in refereed journals
    • I contributed to publication of booklets/brochures/bulletins on cotton for the benefit of cotton farmers.
    • I was resource person for trainings on cotton for the Department of Agriculture
    • I participated in diagnostic field visits, especially for Pink boll worm and suggested measures

    2021

    • I published 10 research articles in refereed journals
    • I contributed to publication of booklets/brochures/bulletins on cotton for the benefit of cotton farmers.
    • I was resource person for trainings on cotton for the Department of Agriculture
    • I participated in diagnostic field visits and suggested measures.
    • I served as External Examiner and evaluated one M. Sc. (Ag) thesis (Mr. Tapish Pawar, Admn. No. L-2018-A-136-M) of PAU, Ludhiana.

    2022

    • I published nine research articles in refereed journals (2 Scopus)
    • I contributed to publication of booklets/brochures/bulletins on cotton for the benefit of cotton farmers.
    • I was resource person for trainings on cotton for the Department of Agriculture.
    • I contributed to the conduct of large-scale demonstrations in cotton and regular monitoring to suggest timely measures for achieving high yields.
    • I participated in diagnostic field visits, especially for Pink boll worm and suggested measures.
    • I served as External Examiner and evaluated one Ph. D thesis (Ms. Swathi, B, ID No. PGS18AGR7651) of UAS, Dharwad.

    Cotton Innovate | Volume 4 (1), 2021 10 Farmers’ Corner

    Extra-long staple (ELS) Bt Cotton Hybrid DCH 32 benefits farmers in southern dry zone of Karnataka Cotton is one of the most important commercial crops, which plays a vital role in livelihood security of the farmers in southern dry zone of Karnataka. Mysore and Chamarajnagar are the leading cotton growing districts of the zone. Traditionally this zone is known for cultivation of Extra Long Staple (ELS) cotton, due to its favourable climatic conditions. Prior to the introduction of Bt cotton hybrids, the predominant cultivar cultivated in the zone was DCH- 32. But, in the current era of Bt cotton, the area under non-Bt version of DCH 32 declined. During the year 2019- 20, with the introduction of DCH-32 Bt cotton (BGII) by Karnataka State Seed Corporation (KSSC), the ICAR-AICRP on Cotton, Chamarajanagar centre attempted to introduce DCH-32 Bt cotton in farmers’ field through Front Line Demonstrations (FLDs) under the National Food Security Mission on Cotton – Commercial Crops.

    Sri Siddappa S/o Basappa, is a young progressive farmer from Taglur village, in Begur Hobli of Gundlupet taluk, Chamarajanagar District. He owns six acres of land and adopts Integrated Farming System (IFS) concept for sustainable agriculture. He opted for demonstration of new DCH-32 Bt cotton in his field under the supervision of ICAR-AICRP scientists. He took up the sowing in the month of April 2020 at a spacing of 90 × 90 cm following recommended package of practices. Gap filling was taken with seedlings that were raised in polythene bags after the occurrence of rains. Seeing the good establishment of crop, higher number of bolls per plant and good boll size achieved attracted the neighbouring farmers to visit his field regularly and they started showing interest in DCH 32 Bt cotton. Consequently, the officials from the Karnataka State Department of Agriculture and Karnataka State Seed Corporation also visited the demo field. A field day was organized for farmers in the presence of Dr. A.H. Prakash, Project Coordinator (Cotton Improvement), Dr. Y.G. Sadakshari, Director of Research, UAS, Bangalore, Dr. S.N. Vasudevan, ADR, ZARS, VC Farm, Mandya, JDA of KSDA, Director of KSSC, Scientists of ICAR-AICRP on Cotton and KVK. Under rainfed conditions, a good yield of 2000 kg/ha was harvested eliciting interest of other farmers in the adoption of the ELS hybrid. As a result, during the year 2020-21, ICAR-AICRP on Cotton, Chamarajanagar implemented 50 acres of frontline demonstration in farmers’ fielda on ELS cotton realizing an average seed cotton yield of 1481 kg/ha (11.9% higher yield) as against farmers’ practice of 1324 kg/ha. Cost of cultivation, gross return, net return and B:C ratio per hectare were Rs. 42184, Rs.81455, Rs.39271 and 1.93, respectively in FLD fields and Rs.39930, Rs.72820, Rs.32890 and 1.82 respectively under farmers’ practices.


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