Agriculture Quiz 5 - MCQ

1. Which of the following irrigation methods is most efficient for water use in arid regions?

• A. Surface irrigation
• B. Sprinkler irrigation
• C. Drip irrigation
• D. Basin irrigation

Answer: C. Drip irrigation

2. Which gene is inserted in Bt cotton to make it insect-resistant?

• A. cry1Ac
• B. Bt-2
• C. Flavr Savr
• D. ARGOS8

Answer: A. cry1Ac

3. C4 plants exhibit higher photosynthetic efficiency under high light intensity due to:

• A. Presence of kranz anatomy
• B. High stomatal conductance
• C. Photorespiration enhancement
• D. Lower chlorophyll content

Answer: A. Presence of kranz anatomy

4. In plant breeding, the removal of off-type plants is referred to as:

• A. Hybridization
• B. Selection
• C. Rouging
• D. Backcrossing

Answer: C. Rouging

5. The disease 'Tungro' in rice is transmitted by:

• A. Whitefly
• B. Leafhopper
• C. Stem borer
• D. Aphid

Answer: B. Leafhopper

6. Which soil order is characterized by high organic matter and is commonly found in temperate grasslands?

• A. Oxisols
• B. Alfisols
• C. Mollisols
• D. Entisols

Answer: C. Mollisols

7. What is the mode of action of the herbicide Glyphosate?

• A. Inhibits photosystem I
• B. Inhibits EPSP synthase
• C. Blocks auxin transport
• D. Inhibits acetyl-CoA carboxylase

Answer: B. Inhibits EPSP synthase

8. In precision farming, VRT stands for:

• A. Variable Rate Technology
• B. Vertical Root Treatment
• C. Vegetative Resistance Test
• D. Variable Rainfall Timing

Answer: A. Variable Rate Technology

9. The practice of growing rice and fish together is known as:

• A. Aquaponics
• B. Hydroponics
• C. Integrated farming
• D. Paddy-cum-fish culture

Answer: D. Paddy-cum-fish culture

10. The mineral nutrient molybdenum is essential for which of the following functions?

• A. Photosynthesis
• B. Protein synthesis
• C. Nitrogen fixation
• D. Cell division

Answer: C. Nitrogen fixation