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