Potential Exam Questions for Plant Science V

Warning: The following questions may be poorly worded and subjective. Exam questions will be worded differently. Exams may also contain questions not listed here.

  1.  Name the 7 crops that account for 75% of food production
  2. Define: Grain crop, Pulse crop
  3. Name 3 grain and 2 pulse crops


  4. What is the average corn yield per acre in the US?
  5. Give a botanical description of corn.
  6. What is the primary use of Corn in the US?
  7. Name and briefly describe 3 common types of corn grown in the US.
    1. Which is the Most important in terms of acreage?
  8. How is flowering regulated in corn?
  9. What is "Hybrid Vigor"?
    1. What is its practical significance?
  10. Under average growing conditions what should be the population of corn plants per acre? What about under optimal conditions?
  11. Nitrogen needs are based on "Expected yields". How does one determine that?  


  12. Identify 3 wheat types grown in the US and their general area of adaptation.
  13. Indicate 2  climatic conditions to which wheat is well adapted.
  14. The yield of wheat remains the same under a wide range of seeding rates. Why is that?
  15. What are tillers?
  16. What does 'jointing' refer to?
  17. What condition forces wheat to begin the flowering process?
  18. What is the recommended planting date range for wheat in South GA?
    1. Why is it not planted earlier?
  19. Describe how wheat is generally used in rotation in the South.
  20. Describe the optimal Nitrogen application regime.
  21. What is the optimal plant population for wheat?

  22. What is the Average US yield for soybeans?
  23. Name and describe the 2 major types of soybeans based on growth.
  24. How many soybean Maturity classes are there? How are they numbered?
    1. Which are grown in GA?
  25. What is the optimal range of planting dates for soybeans?
  26. Why is a small amount of Nitrogen fertilizer used at planting for soybeans?
  27. What is the optimal plant population for soybeans?
  28. When do Rhizobia bacteria begin to infect soybean roots?
  29. Why are early-season weeds a problem for soybeans?


  30. From where did peanuts originate?
    31.
  31. What are the primary uses of annual peanuts? For what are perennial peanuts used?
  32. Name and describe the 2 primary types of annual peanuts.
  33. Describe the development of peanuts from flowering through pod production.
  34. Give 3 reasons why peanuts should not be grown more often than once every 3-4 years.
  35. Name 2 reasons why crops following peanuts in rotation do poorly?
  36. Aside from changing the soil acidity level, why is lime often needed for peanut production?




  37.  Name and describe 3 types of cotton grown in the US
    1.  Which is mostly grown in GA?
  38. What type of life cycle does cotton have?
  39. What are the 4 general climatic requirements for cotton adaptation?
  40. Where do the cotton bolls form on the plant?
  41. Every cotton fiber (lint) is made of how many cells?
  42. How long does it take for cotton lint to reach its full length?
  43. What level of soil acidity can cotton grown under (the lowest pH)?
  44. Using 36" rows, what plant population is desirable?
  45. Indicate common operations performed before harvest.

  46. Name and describe the growing conditions of the 2 types of rice (Oryza)
  47. How do young rice plants get energy under anaerobic conditions?
  48. How can older rice plants get Oxygen for Aerobic respiration?
  49. What form of Nitrogen fertilizer is best for rice production?