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ICAR AIEEA (PG) JRF - Plant Physiology Syllabus & Exam Pattern

Prepare for your exam with the latest official syllabus, detailed topic-wise breakdown, and mark distribution.

Comprehensive syllabus for the ICAR JRF (Junior Research Fellowship) entrance exam for the \'Plant Physiology\' discipline. Note: This discipline falls under the Major Subject Group \'Plant Biotechnology\' (Code 01). Candidates must prepare for the entire subject group, which includes Plant Physiology, Plant Biochemistry, and Plant Biotechnology.

Exam Overview

Conducting Body National Testing Agency (NTA)
Exam Frequency Annual
Major Subject Group Plant Biotechnology (Code 01)
Sub-Subjects Covered Plant Physiology, Plant Biochemistry, Plant Biotechnology
Total Marks 480 (120 Questions x 4 Marks)

Exam Pattern

Exam Structure
Section Content Questions Marks
Part A General Knowledge / General Agriculture 20 MCQs 80
Part B Core Subject Group (Physiology + Biochem + Biotech) 100 MCQs 400
Total 120 MCQs 480

Note: The paper is common for all students in the 'Plant Biotechnology' group. You must study all three sections.

Subject-wise Syllabus

Plant Physiology (Core)
Biochemistry (Support)
Biotechnology (Support)
Core Unit: Plant Physiology +
  • • Cell Organelles & Water Relations Very High
    Structure and physiological functions of cell wall, cell membrane (fluid mosaic model), aquaporins; Water potential and its components (solute, pressure, matrix potential); Mechanism of water absorption (active vs passive); Ascent of sap (cohesion-tension theory); Transpiration: types, mechanism of stomatal movement (K+ pump theory, ABA role), antitranspirants; Guttation.
  • • Mineral Nutrition High
    Criteria of essentiality (Arnon & Stout); Macro and micronutrients: specific physiological roles and deficiency symptoms; Hydroponics and Aeroponics; Mechanism of ion uptake (carriers, channels, pumps); Nernst equation; Biological Nitrogen Fixation (symbiotic, associative, asymbiotic); Nitrate assimilation (NR and NiR enzymes).
  • • Photosynthesis Very High
    Photosynthetic pigments (chlorophylls, carotenoids, phycobilins); Light harvesting complexes; Z-scheme of electron transport; Photophosphorylation (cyclic and non-cyclic); Calvin Cycle (C3 pathway); C4 pathway (Kranz anatomy, enzymes); CAM pathway; Photorespiration (C2 cycle); Factors affecting photosynthesis; Law of limiting factors.
  • • Respiration High
    Aerobic and anaerobic respiration; RQ (Respiratory Quotient); Glycolysis (EMP pathway); TCA cycle (amphibolic nature); Electron Transport Chain (ETC) and Oxidative Phosphorylation (Chemiosmotic theory); Pentose Phosphate Pathway (significance); Cyanide-resistant respiration; Gluconeogenesis; Factors affecting respiration.
  • • Plant Growth Regulators (Hormones) Very High
    Biosynthesis, transport, physiological roles, and signaling mechanisms of: Auxins, Gibberellins (GA), Cytokinins, Ethylene, and Abscisic Acid (ABA); Newer hormones: Brassinosteroids, Jasmonates, Salicylic acid, Strigolactones, Polyamines; Bioassays for hormones.
  • • Physiology of Growth & Development High
    Growth analysis parameters (CGR, RGR, NAR, LAI); Photoperiodism (Short day, Long day, Day neutral plants); Florigen concept; Vernalization (site of perception, mechanism); Phytochrome (Pr/Pfr forms, mode of action); Cryptochromes and Phototropins; Seed germination and Dormancy (types and breaking methods); Senescence and Abscission.
  • • Stress Physiology Medium
    Biotic vs Abiotic stress; Drought stress (proline accumulation, adaptations); Salinity stress (ROS, antioxidants, ion homeostasis); Heat shock proteins (HSPs); Cold stress (chilling and freezing injury); Heavy metal toxicity and phytoremediation strategies.
Supporting Unit: Plant Biochemistry +
  • • Biomolecules & Metabolism Medium-High
    Structure and function of Carbohydrates, Proteins, Lipids, and Nucleic Acids; Enzyme kinetics (Km, Vmax) and inhibition; Fatty acid oxidation (Beta-oxidation); Secondary metabolites (Alkaloids, Phenolics, Terpenoids) - biosynthesis and functions.
  • • Techniques Medium
    Chromatography (HPLC, GC); Electrophoresis (SDS-PAGE); Centrifugation; Spectrophotometry; Radioisotopes in physiology research.
Supporting Unit: Molecular Biology +
  • • Genetic Engineering Medium
    Recombinant DNA technology tools; Tissue culture basics (totipotency, somatic embryogenesis); Transgenic plants for stress resistance; Molecular markers (RFLP, RAPD, SSR).

Recommended Books

Book NameAuthor/PublisherImportance
Plant Physiology and Development Taiz and Zeiger Essential (Gold Standard)
Plant Physiology Salisbury and Ross High (Conceptual clarity)
Fundamentals of Plant Physiology V.K. Jain Medium (Good for basics)
Objective Plant Physiology V.U. Patil or S.R. Wahegaonkar Practice (For MCQs)
Principles of Biochemistry Lehninger High (For Biochem section)

Frequently Asked Questions

Can I attempt only Plant Physiology questions in the exam? +

No. The question paper (Code 01) is a composite of Plant Physiology, Biochemistry, and Biotechnology. You must answer questions from all three sections to score well.

What is the best strategy for the 'Stress Physiology' section? +

Focus on the mechanism of tolerance (e.g., role of proline, glycine betaine, antioxidants like SOD/CAT) and the specific adaptations to drought and salinity. Questions often link stress to hormone signaling (ABA).

Is Mathematics required for Plant Physiology? +

Basic calculation skills are needed for Water Potential problems, Growth Analysis (calculating RGR, NAR), and Enzyme Kinetics (Michaelis-Menten).

Which institutes offer the best Plant Physiology programs? +

IARI New Delhi (Division of Plant Physiology) is the top choice. Others include IIHR Bangalore, GBPUAT Pantnagar, and TNAU Coimbatore.