Which of the following weeds is a C4 monocot weed ? | Agrigyan

General Agriculture Cropping and Farming Systems and Organic Farming Soil-Plant-Water Relationship Weed Management Sustainable Land Use Systems Soil Fertility and Fertilizer Use Agricultural Statistics Crop Production Dryland Agronomy Crop Ecology and Geography Irrigation Water Management Management of Problematic Soils and Crop Production
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Agronomy- ICAR JRF/SRF 2024
MCQ (Single Correct)

Which of the following weeds is a C4 monocot weed ?

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Agricultural Statistics

2 Topics
Experimental Field Designs: Principles (Randomization, Replication, Local Control), CRD, RBD, Latin Square & Factorial Experiments Statistical Inference: Significance Testing (t-Test, F-Test, Chi-Square), ANOVA, Transformations & Intercropping Competition Indices

Crop Ecology and Geography

2 Topics
Crop Ecology: Ecological Optima, Environmental Limits, Crop Geography & Agro-Ecological Delineation Physiological Agronomy: Canopy Photosynthesis (C3, C4, CAM), Thermal Units & Photoperiodic Flowering

Crop Production

2 Topics
Cereal, Millet & Fiber Agronomy: Package of Practices, Cultivar Selection, Plant Geometry & Yield Physiology Pulses, Oilseeds, Sugar & Tuber Crops: Cultural Practices, Seed Inoculation (Rhizobium), Quality Components & Post-Harvest

Cropping and Farming Systems and Organic Farming

2 Topics
Integrated Farming Systems (IFS), Organic Farming Standards (NPOP), Biodynamic & Natural Farming Principles Cropping Systems: Mono, Multiple, Inter, Sequential, Relay & Mixed Cropping Indices (CROPI, LER, ATER)

Dryland Agronomy

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Dryland Agriculture: Delineation (Arid, Semiarid), Drought Classification, Moisture Stress Physiology & Contingency Planning In-Situ Moisture Conservation, Water Harvesting, Farm Ponds, Anti-Transpirants & Watershed Management

General Agriculture

6 Topics
Agronomy, Tillage & Field Crop Production Agricultural Entomology, Nematology & Crop Protection Soil Science, Plant Nutrition & Reclamation Cell Biology, Plant Physiology & Biochemistry Agricultural Meteorology & Climate Science Crop Genetics, Plant Breeding & IPR

Irrigation Water Management

2 Topics
Irrigation Application Methods (Border, Furrow, Basin, Drip, Sprinkler), System Efficiencies & Agricultural Drainage Irrigation Scheduling: Soil Moisture Depletion, IW/CPE Ratio, Critical Growth Stages & Plant Temperature Stress Indices

Management of Problematic Soils and Crop Production

2 Topics
Salt-Affected Soils: Saline, Sodic & Saline-Sodic Soils Genesis, Classification, ESP, SAR & Chemical Reclamation (Gypsum) Acid, Acid-Sulfate, Waterlogged & Heavy Metal Contaminated Soils: Diagnosis, Liming & Agronomic Crop Production

Soil Fertility and Fertilizer Use

2 Topics
Fertilizer Technology: Nitrogen, Phosphorus, Potassium & Micronutrient Fertilizers, NUE & Site-Specific Nutrient Management (SSNM) Plant Nutrient Essentiality, Biochemical Functions, Deficiency Symptoms & Nutrient Interactions (Synergy/Antagonism)

Soil-Plant-Water Relationship

2 Topics
Soil Water Energy Concepts: Water Potential Components (Matric, Osmotic, Pressure, Gravitational) & Energy Retention Soil Water Measurement (Tensiometer, Gypsum Blocks, TDR, Neutron Probe), Plant Water Status & Soil Hydraulic Conductivity

Sustainable Land Use Systems

2 Topics
Land Capability Classification, Alternate Land Use, Agroforestry Systems (Agrisilviculture, Silvopasture) & Wasteland Farming Conservation Agriculture: Minimum/Zero Tillage, Crop Residue Mulching, Crop Diversification & Carbon Sequestration

Weed Management

2 Topics
Herbicide Technology: Chemical Classes, Mode of Action, Selectivity, Resistance & Integrated Weed Management (IWM) Weed Biology, Crop-Weed Competition, Critical Periods, Weed Seed Dormancy & Allelopathy Active
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