ICAR AICE JRF SRF 2026 chapter-wise weightage for Agriculture shows Agronomy and Genetics/Plant Breeding together account for nearly 40-50% of Part B and Part C questions, based on analysis of past papers from 2019 to 2024.
The ICAR AICE JRF SRF 2026 exam is scheduled for July 2026 and is conducted by the National Testing Agency (NTA) on behalf of the Indian Council of Agricultural Research. The exam tests Agriculture students across three sections — Part A (General Knowledge in agricultural sciences), Part B (Core subject group) and Part C (Specialized subject). With 100 subject-specific questions carrying 400 marks, your rank depends on how well you cover the highest-weightage chapters first.
- Agronomy consistently contributes 20-25% of Part B and Part C questions and is the single highest-scoring subject.
- Genetics and Plant Breeding carry 18-22% of subject-specific questions across past papers.
- Soil Science is the third-highest subject, contributing 14-18% of questions each year.
- Plant Pathology and Agricultural Entomology together contribute 18-22% in a typical paper.
- Each correct answer carries +4 marks and each wrong answer carries a -1 penalty — high-weightage chapters are your best margin of safety.
| Direct Link to ICAR AICE JRF SRF 2026 Official Portal (NTA Official) |
| exams.nta.nic.in/icar |
ICAR AICE JRF SRF 2026 Agriculture Exam Pattern
Understanding the exam structure is the first step before applying chapter weightage data to your study plan. The ICAR AICE JRF SRF 2026 exam is a 2-hour Computer-Based Test with 120 MCQs worth 480 total marks.
| Feature | Details |
|---|---|
| Exam Mode | Computer-Based Test (CBT) |
| Duration | 2 Hours (120 minutes) |
| Total Questions | 120 MCQs |
| Total Marks | 480 marks |
| Part A — General Knowledge | 20 questions | 80 marks | Agriculture, Animal Husbandry, Fisheries and allied sciences |
| Part B — Core Subject Group | 50 questions | 200 marks | Core subject topics of the opted discipline |
| Part C — Specialized Subject | 50 questions | 200 marks | In-depth specialized subject topics |
| Marks per Correct Answer | +4 marks |
| Negative Marking | -1 mark per wrong answer |
| Question Type | Multiple Choice Questions (MCQs) |
Parts B and C together contain 100 subject-specific questions worth 400 marks. These 100 questions are the primary differentiator for Agriculture students — your Part A score is nearly identical for all Agriculture students, so Part B and Part C rank you.
Chapter-Wise Weightage Table for Agriculture
The table below reflects the approximate chapter-wise distribution in Part B and Part C combined, based on analysis of ICAR AICE JRF SRF question papers from 2019 to 2024. Exact question counts vary by year; these figures represent the recurring patterns across six exam cycles.
| Subject / Chapter Area | Approx. Questions (out of 100) | Weightage (%) | Past-Paper Trend |
|---|---|---|---|
| Agronomy | 20-25 | 20-25% | Highest and most consistent across all years |
| Genetics and Plant Breeding | 18-22 | 18-22% | High and stable; biotechnology share rising |
| Soil Science and Agricultural Chemistry | 14-18 | 14-18% | Consistent; soil fertility and microbiology most tested |
| Plant Pathology | 10-13 | 10-13% | Stable; disease cycles and biocontrol frequently tested |
| Agricultural Entomology | 9-12 | 9-12% | Stable; ETL/EIL and IPM tested every year |
| Plant Biotechnology and Molecular Biology | 7-10 | 7-10% | Growing share since 2021; tissue culture and MAS key |
| Agricultural Economics and Farm Management | 6-8 | 6-8% | Moderate; price policy and cost concepts recurring |
| Seed Science and Technology | 4-6 | 4-6% | Moderate; seed testing, certification and storage |
| Agricultural Extension and Rural Development | 3-5 | 3-5% | Low but predictable; KVK and extension methods |
| Agricultural Microbiology | 3-5 | 3-5% | Low; nitrogen-fixing organisms and biofertilizers |
| Horticulture | 2-4 | 2-4% | Low in Agriculture discipline; higher in Hort. specialization |
Agronomy and Genetics/Plant Breeding together make up roughly 40-47% of the combined Part B and Part C paper. Scoring 80% or more in just these two subjects can account for 32-38 marks out of every 100 subject-specific questions — a significant edge in a competitive exam.
High-Priority Topics from Past Papers (2019-2024)
Topic-level analysis of past papers reveals chapters that appear every year versus those that appear occasionally. The table below lists recurring topics for each high-weightage subject.
| Subject | Topics Tested Repeatedly in Past Papers |
|---|---|
| Agronomy | Tillage and seedbed preparation; crop production principles; IW/CPE ratio in irrigation scheduling; critical growth stages for irrigation; weed management (ETL, herbicide groups); cropping systems (intercropping LER, relay cropping, mixed cropping); nutrient use efficiency; Kharif and Rabi crop management (rice, wheat, maize, soybean, groundnut, mustard) |
| Genetics and Plant Breeding | Mendelian inheritance (monohybrid, dihybrid, trihybrid ratios); linkage and crossing over; multiple alleles and epistasis; polyploidy types and crop examples; quantitative traits and heritability; plant breeding methods (pure line, mass, pedigree, backcross, recurrent selection); hybrid seed production; marker-assisted selection (MAS); somaclonal variation; wide hybridization |
| Soil Science | Soil formation factors (Jenny’s factors) and weathering; USDA soil classification (7th Approximation / Soil Taxonomy); soil pH, buffer capacity and lime requirement; cation exchange capacity (CEC); macronutrient and micronutrient deficiency symptoms; nitrogen cycle with specific organisms; fertiliser calculations and use; salt-affected soils and reclamation; integrated nutrient management (INM) |
| Plant Pathology | Fungal diseases of rice (blast, brown spot, sheath blight), wheat (rust, smut, Karnal bunt), and cotton (wilt); bacterial diseases (blight, canker, wilt); viral diseases (mosaic, yellowing); disease cycle stages (primary and secondary inoculum); Koch’s postulates; biocontrol agents (Trichoderma, Pseudomonas fluorescens); fungicide groups and systemic vs. contact fungicides |
| Agricultural Entomology | Insect morphology (mouthparts, metamorphosis types); economic threshold level (ETL) and economic injury level (EIL); major pests of rice (stem borer, BPH), wheat (Hessian fly), cotton (bollworms, whitefly), stored grain pests; IPM components and sequence; pesticide groups and mode of action; biological control agents (Trichogramma, Chrysoperla) |
| Plant Biotechnology | Cell and molecular biology basics (DNA replication, transcription, translation); tissue culture techniques (callus, somatic embryogenesis, anther culture, protoplast fusion); restriction enzymes and recombinant DNA technology; PCR and gel electrophoresis; Bt crops and transgenic technology; bioinformatics tools; CRISPR basics (2022 onwards) |
| Agricultural Economics | Demand and supply laws; price elasticity; minimum support price (MSP) and procurement policy; cost concepts (fixed, variable, total, marginal cost); farm planning and budgeting; agricultural credit (cooperative, commercial bank, microfinance); WTO and agricultural trade agreements |
Part C Specialization: Key Topics by Subject
Part C tests in-depth knowledge of your chosen specialization within Agriculture. If you appear in the Agronomy specialization, your Part C questions go deeper into crop science than Part B does. The topics below reflect what past papers have stressed at the specialization level.
| Agronomy Specialization Topics | Genetics/Breeding Specialization Topics |
|---|---|
| Water-use efficiency and irrigation methods (drip, sprinkler, furrow) | Population genetics and Hardy-Weinberg equilibrium |
| Conservation agriculture and zero tillage | Cytogenetics and chromosome structure |
| Precision farming and site-specific nutrient management | Mutation breeding and induced mutagenesis |
| Organic farming and biofertilizer use | Speed breeding and doubled haploid technology |
| Climate-smart agriculture and abiotic stress management | Genomics-assisted breeding and QTL mapping |
| Cropping system research and crop diversification | Hybrid vigor and combining ability (GCA and SCA) |
Students appearing in Soil Science specialization should additionally focus on pedogenesis, soil mapping, remote sensing in soil survey, soil carbon sequestration and precision nutrient management. For Plant Pathology specialization, epidemiology models, molecular diagnostics and biocontrol mechanisms appear with high frequency in Part C.
Preparation Strategy Based on Weightage
Using chapter weightage data to allocate study time is more effective than studying all subjects equally. Here is a practical plan based on the patterns seen in past papers.
- Spend 25-30% of your subject study time on Agronomy: Use ICAR crop production textbooks and solve previous-year questions chapter by chapter. Pay special attention to irrigation scheduling and weed management numericals.
- Pair Genetics theory with Breeding methods: Study inheritance patterns first, then apply them to breeding methods. Questions often test which breeding method suits a specific inheritance type.
- Master Soil Science nutrient topics: Deficiency symptoms, soil pH effects on nutrient availability and the nitrogen cycle appear in almost every paper. These are direct-recall questions that take minimal time to prepare.
- Memorise ETL values and disease organisms for Entomology and Pathology: These subjects reward memorisation. Create a table of key ETL values, major pest species and causal organisms for the 10 most important crops.
- Track Biotechnology trends post-2021: CRISPR, next-generation sequencing and genomic selection have appeared since 2021. Spend at least one week on current plant biotechnology before the exam.
- Do not skip Economics and Extension: Combined, these subjects contribute 9-13 marks. One focused week on price policy, cost concepts, extension methods and KVK structure is sufficient to score full marks here.
- Apply negative marking discipline: With a -1 penalty, skip questions where you cannot eliminate at least two options. In a 100-question subject paper, random guessing can cost you 5-10 marks.
ICAR AICE JRF SRF 2026 Agriculture Chapter Weightage FAQs
Ques. Which subject has the highest weightage in ICAR AICE JRF SRF 2026 for Agriculture?
Ans. Agronomy has the highest weightage, accounting for approximately 20-25% of combined Part B and Part C questions based on past-paper analysis from 2019 to 2024. Genetics and Plant Breeding follows at 18-22%.
Ques. How is the ICAR AICE JRF SRF 2026 exam structured for Agriculture students?
Ans. The exam has 120 MCQs worth 480 marks in 2 hours. Part A has 20 General Knowledge questions (80 marks), Part B has 50 core subject questions (200 marks) and Part C has 50 specialized subject questions (200 marks). Marking is +4 for correct and -1 for wrong answers.
Ques. What are the most repeated topics in ICAR JRF SRF past papers for Agriculture?
Ans. Based on 2019-2024 past papers, the most frequently tested topics are: cropping systems and irrigation scheduling in Agronomy; Mendelian inheritance and polyploidy in Plant Breeding; soil CEC, nutrient cycles and pH in Soil Science; disease cycles and biocontrol in Plant Pathology; and ETL/EIL and IPM in Entomology.
Ques. How much does Plant Biotechnology carry in the ICAR AICE JRF SRF Agriculture paper?
Ans. Plant Biotechnology and Molecular Biology carries an expected 7-10% weightage based on past-paper trends, contributing approximately 7-10 questions in the combined Part B and Part C paper. Its share has been growing since 2021 with increasing questions on tissue culture, MAS and CRISPR.
Ques. Should Agriculture students prepare Horticulture for ICAR AICE JRF SRF?
Ans. Horticulture carries a low 2-4% weightage in the Agriculture discipline paper, contributing roughly 2-4 questions. You should cover basic fruit and vegetable cultivation and post-harvest technology but should not spend significant time on it at the expense of Agronomy, Plant Breeding or Soil Science.
Ques. When is the ICAR AICE JRF SRF 2026 exam date?
Ans. The ICAR AICE JRF SRF 2026 exam is expected to be held in July 2026. Students should check the official NTA portal at exams.nta.nic.in/icar for the confirmed exam date, admit card release and other schedule updates.
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