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Crop Science MCQs Based On LEA PYQ

Hey students, preparing for your upcoming agriculture examinations such as PRC LEA, UPSC, ICAR JRF, etc. but confused about whether your preparation is going well or not? Well, no more! At Agriculture Review, we keep updating new test series daily based on previous years’ questions of the Examination for Agriculturists.

In this test, you have to attempt 50 questions from Crop Science subject. Attempting all questions is necessary to identify your strengths and weaknesses. After completing the test, you can take a screenshot of your result for future reference and compare it with past performances. To stay updated with regular test series, click on the bell icon at the bottom left corner of the screen.

📘 How to Attempt These LEA Based MCQs

Follow these simple steps to simulate exam conditions, boost accuracy, and learn from mistakes effectively.

  1. Read each question carefully. Look for keywords like “primary,” “most common,” या “best suited.”
  2. Use the elimination method. Cross out obviously wrong options first to narrow choices.
  3. Time management: Aim for 1 minute per question (total 50 minutes). Mark hard questions and return to them later.
  4. Think conceptually. LEA questions often test application — ask yourself why an answer fits.
  5. Keep calculations minimal. Most MCQs are conceptual; when calculations appear, write steps clearly.
  6. After finishing, review answers. Check the answer key only after completing the whole test to assess time and accuracy.
  7. Create a revision list. Note down topics you missed and review them in short, focused sessions.
Quick tips:
  • Answer easy questions first to secure marks quickly.
  • For disease questions, remember causative agents (virus/bacteria/protozoa) and prevention methods (vaccination/biosecurity).
  • Memorize common breeds, top-producing regions, and key lab tests (e.g., CMT for mastitis).

Tip: Repeat the quiz weekly and track progress. Consistent practice beats last-minute cramming.

You can also join our Facebook Broadcast Channel, where we regularly share newly updated questions. All the best for today—I hope you become a registered Agriculturist soon!

यदि आपका कोई प्रश्न, विचार या सुझाव है तो कृपया नीचे टिप्पणी करें। आप फेसबुक, इंस्टाग्राम, कू और व्हाट्सएप मैसेंजर पर भी एग्रीकल्चर रिव्यू से जुड़ सकते हैं।

crop-science-mcqs-based-on-lea-pyq
Crop Science MCQs

Crop Science MCQs

1. Which plant cell organelle is primarily responsible for photosynthesis in green plants?

2. The process of conversion of atmospheric nitrogen into a form usable by plants is called:

3. In the botanical classification of crops, rice (Oryza sativa L.) belongs to which family?

4. The process by which plants lose water vapor through stomata is known as:

5. The inflorescence of rice is scientifically known as:

6. Which of the following best describes the main advantage of hybridization in crop improvement?

7. The essential macronutrient required by plants for protein and chlorophyll synthesis is:

8. Which of the following best describes the process of photoperiodism in plants?

9. In plant breeding, which selection method is most effective for self-pollinated crops?

10. A typical C₄ crop such as maize has which of the following characteristics?

11. The region of the root where most absorption of water and minerals takes place is known as:

12. Which of the following tissues is responsible for the secondary growth in dicot stems?

13. The primary function of xylem in vascular plants is:

14. In the anatomy of a leaf, which layer contains the highest number of chloroplasts for photosynthesis?

15. In plants such as cassava and sweet potato, the major storage organ is the:

16. Which plant hormone promotes cell elongation and apical dominance?

17. Which type of pollination occurs when pollen is transferred from the anther of one flower to the stigma of another flower on the same plant?

18. The process of breaking seed dormancy by subjecting seeds to a period of low temperature is called:

19. The opening and closing of stomata are primarily regulated by the:

20. The process in which sugars produced in leaves are transported to other parts of the plant is called:

21. Agriculture is best described as:

22. The earliest form of agriculture practiced by early Filipinos was primarily:

23. Which of the following best describes agriculture’s contribution to the Philippine economy?

24. The DA program “Masagana 99” was implemented during which administration in the Philippines?

25. Biotechnology in crop production primarily aims to:

26. Under botanical classification, corn (Zea mays L.) belongs to which family?

27. Crops that complete their life cycle within one growing season are classified as:

28. In the agronomic classification, sugarcane is considered as a:

29. The crop originally domesticated in Mexico and later introduced widely in the Philippines is:

30. Scientific naming of plants using a two-word Latin system (genus and species) is known as:

31. The transition from vegetative to reproductive phase in most crop plants is primarily triggered by:

32. Which physiological process is most directly responsible for the cooling of plant leaves during the daytime?

33. The period from flowering to seed maturity in rice is known as the:

34. C4 plants such as maize are more efficient under high light and temperature conditions because they:

35. In the context of crop growth analysis, Leaf Area Index (LAI) represents:

36. Which of the following best describes a limiting factor for crop production?

37. Soil aeration is crucial for healthy crop growth because it directly influences:

38. The most critical stage for water stress in rice crop is during:

39. Which cropping system involves growing two or more crops simultaneously on the same land without a definite row arrangement?

40. The interaction of temperature, humidity, and wind speed affecting plant water loss is referred to as:

41. The primary objective of hybridization in plant breeding is to:

42. Mutation breeding is most effective in developing new varieties of:

43. The seed class directly produced from breeder seed under the National Seed System is known as:

44. Marker-assisted selection (MAS) in crop breeding primarily helps in:

45. In tissue culture, the ability of a single cell to regenerate a complete plant is termed as:

46. Golden Rice was genetically engineered primarily to combat deficiency of:

47. Which cultural practice primarily reduces weed competition and soil erosion in sustainable crop production?

48. The farming practice that integrates crops, livestock, and trees for long-term ecological and economic benefits is called:

49. In the seed certification system, which tag color is used for Certified Seed?

50. Conservation tillage helps promote sustainability mainly by:

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