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