MCQs Agronomy-49 Posted on February 2, 2025August 30, 2025Author agropublishers 0 1. Which of the following practices poses a threat to agricultural biodiversity? Monoculture systems Intercropping Crop rotation Agroforestry 2. The primary grain used for making beer and whisky Barley Wheat Maize Rice 3. Rice inflorescence is called ————- Panicle Arrow Pod Head 4. ————- of the following is a key enzyme in the Calvin cycle Nitrogenase ATP synthase Rubisco Amylase 5. ———————- is the scientific name of popcorn maize None of these Zea mays mays Zea mays mexicana Zea mays everta 6. Which of the following is the dominant cropping system of Central Punjab, Pakistan Rice-wheat Cotton-wheat Groundnut-maize Rice-maize 7. The most critical growth stages for irrigation in maize ————– Tasseling and silking None of these Grain filling Knee-high 8. Germination of Sugarcane Bud is highly temperature dependent, under 27°C and ideal conditions, primary shoots emerge within ————— after planting more than 5 weeks 1 to 2 weeks 2 to 3 weeks 4 to 5 weeks 9. ————– is the enzyme that breaks down starch into sugars Rubisco ATP synthase Amylase Amylose 10. ————- is the largest producer of raw tobacco in the world China Malawi India Brazil Loading …