How to Identify and Classify Corn
  • 1. What is the primary method for identifying corn varieties?
A) Leaf shape
B) Root depth
C) Soil type
D) Kernel characteristics
  • 2. Which of these is NOT a type of corn?
A) Flint corn
B) Wheat corn
C) Sweet corn
D) Dent corn
  • 3. What is the defining feature of dent corn?
A) Indent on the kernel
B) High sugar content
C) Hard outer layer
D) Rounded kernel shape
  • 4. Sweet corn is harvested at what stage?
A) Mature stage
B) Milk stage
C) Dry stage
D) Silking stage
  • 5. Flint corn is also known as:
A) Waxy corn
B) Indian corn
C) Popcorn
D) Pod corn
  • 6. What is the primary use of dent corn?
A) Animal feed
B) Ornamental purposes
C) Ethanol production
D) Human consumption
  • 7. Which type of corn has a hard, glassy endosperm?
A) Dent corn
B) Flint corn
C) Sweet corn
D) Flour corn
  • 8. What characteristic distinguishes popcorn from other corn types?
A) Yellow color
B) High starch content
C) Ability to pop
D) Small kernel size
  • 9. The pericarp of the corn kernel refers to the:
A) Endosperm
B) Outer covering
C) Tip cap
D) Germ
  • 10. What is the function of the endosperm in a corn kernel?
A) Regulates water uptake
B) Protects the kernel from insects
C) Attracts pollinators
D) Provides energy for germination
  • 11. Which part of the corn kernel contains the embryo?
A) Pericarp
B) Germ
C) Tip cap
D) Endosperm
  • 12. What color is typically associated with sweet corn kernels?
A) Yellow
B) Blue
C) Red
D) Black
  • 13. Waxy corn is primarily used in what industry?
A) Cosmetics industry
B) Construction industry
C) Textile industry
D) Food processing
  • 14. What is the term for the silk that emerges from the corn husk?
A) Style
B) Anther
C) Pollen
D) Stigma
  • 15. Which corn type is typically used for making corn flour?
A) Flour corn
B) Flint corn
C) Dent corn
D) Sweet corn
  • 16. How does kernel shape help in identifying corn?
A) Shape only depends on soil conditions
B) Different types have distinct shapes
C) Shape is only determined by the farmer
D) Shape is not useful for identification
  • 17. Which characteristic helps differentiate field corn from sweet corn?
A) Kernel color
B) Root depth
C) Plant height
D) Starch content
  • 18. What is the significance of kernel texture in corn classification?
A) Influences water absorption
B) Determines plant disease resistance
C) Indicates starch composition
D) Affects pollen dispersal
  • 19. Which of the following is true about popcorn kernels?
A) Are high in sugar content
B) Are completely dry inside
C) Have a soft outer shell
D) Contain a small amount of moisture
  • 20. What is the role of the tip cap in the corn kernel?
A) Attachment point to the cob
B) Determines kernel color
C) Protects the germ from damage
D) Regulates nutrient flow
  • 21. What is a hybrid corn variety?
A) A genetically modified variety
B) A variety that self-pollinates
C) A variety resistant to pests
D) Cross between two parent lines
  • 22. What does 'early maturity' refer to in corn varieties?
A) Larger kernel size
B) Taller plant height
C) Shorter time to harvest
D) Higher disease resistance
  • 23. How does kernel size affect classification?
A) Kernel size is only linked to soil drainage
B) Kernel size is solely influenced by fertilization
C) Kernel size has no role in classification
D) Some types have characteristically larger kernels
  • 24. Why is understanding corn classification important?
A) Exclusively used for taxonomic studies
B) Optimizes crop utilization
C) It's not actually important
D) Only useful for genetic engineers
  • 25. Which corn type is ideal for producing corn syrup?
A) Popcorn
B) Flint Corn
C) Dent Corn
D) Sweet Corn
  • 26. What is the name for the measure of time for corn to mature?
A) Growing Degree Days
B) Harvest Index
C) Root Mass Density
D) Bushels per Acre
  • 27. What does 'standability' refer to in corn production?
A) Ability to germinate quickly
B) Ability to resist insects
C) Ability to tolerate drought
D) Ability to resist lodging
  • 28. How do farmers classify corn based on maturity?
A) Kernel weight
B) Days to maturity
C) Plant height
D) Root depth
  • 29. What climate is most suitable to growing corn?
A) Dry and arid
B) Cold and mountainous
C) Wet and swampy
D) Warm and humid
  • 30. What is the bract that encloses the ear of corn called?
A) Kernel
B) Husk
C) Silk
D) Cob
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