How to Identify and Classify Corn
  • 1. What is the primary method for identifying corn varieties?
A) Soil type
B) Leaf shape
C) Kernel characteristics
D) Root depth
  • 2. Which of these is NOT a type of corn?
A) Sweet corn
B) Dent corn
C) Flint corn
D) Wheat corn
  • 3. What is the defining feature of dent corn?
A) Rounded kernel shape
B) High sugar content
C) Indent on the kernel
D) Hard outer layer
  • 4. Sweet corn is harvested at what stage?
A) Silking stage
B) Milk stage
C) Dry stage
D) Mature stage
  • 5. Flint corn is also known as:
A) Indian corn
B) Popcorn
C) Waxy corn
D) Pod corn
  • 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) Flint corn
B) Flour corn
C) Dent corn
D) Sweet corn
  • 8. What characteristic distinguishes popcorn from other corn types?
A) Small kernel size
B) High starch content
C) Yellow color
D) Ability to pop
  • 9. The pericarp of the corn kernel refers to the:
A) Germ
B) Endosperm
C) Outer covering
D) Tip cap
  • 10. What is the function of the endosperm in a corn kernel?
A) Protects the kernel from insects
B) Regulates water uptake
C) Provides energy for germination
D) Attracts pollinators
  • 11. Which part of the corn kernel contains the embryo?
A) Germ
B) Pericarp
C) Tip cap
D) Endosperm
  • 12. What color is typically associated with sweet corn kernels?
A) Blue
B) Red
C) Yellow
D) Black
  • 13. Waxy corn is primarily used in what industry?
A) Construction industry
B) Food processing
C) Cosmetics industry
D) Textile industry
  • 14. What is the term for the silk that emerges from the corn husk?
A) Style
B) Pollen
C) Stigma
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) Different types have distinct shapes
C) Shape only depends on soil conditions
D) Shape is only determined by the farmer
  • 17. Which characteristic helps differentiate field corn from sweet corn?
A) Plant height
B) Root depth
C) Kernel color
D) Starch content
  • 18. What is the significance of kernel texture in corn classification?
A) Influences water absorption
B) Affects pollen dispersal
C) Indicates starch composition
D) Determines plant disease resistance
  • 19. Which of the following is true about popcorn kernels?
A) Contain a small amount of moisture
B) Are completely dry inside
C) Have a soft outer shell
D) Are high in sugar content
  • 20. What is the role of the tip cap in the corn kernel?
A) Attachment point to the cob
B) Regulates nutrient flow
C) Protects the germ from damage
D) Determines kernel color
  • 21. What is a hybrid corn variety?
A) A variety that self-pollinates
B) Cross between two parent lines
C) A genetically modified variety
D) A variety resistant to pests
  • 22. What does 'early maturity' refer to in corn varieties?
A) Higher disease resistance
B) Larger kernel size
C) Taller plant height
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) It's not actually important
B) Only useful for genetic engineers
C) Optimizes crop utilization
D) Exclusively used for taxonomic studies
  • 25. Which corn type is ideal for producing corn syrup?
A) Dent Corn
B) Flint Corn
C) Sweet Corn
D) Popcorn
  • 26. What is the name for the measure of time for corn to mature?
A) Root Mass Density
B) Growing Degree Days
C) Bushels per Acre
D) Harvest Index
  • 27. What does 'standability' refer to in corn production?
A) Ability to tolerate drought
B) Ability to resist insects
C) Ability to resist lodging
D) Ability to germinate quickly
  • 28. How do farmers classify corn based on maturity?
A) Plant height
B) Kernel weight
C) Root depth
D) Days to maturity
  • 29. What climate is most suitable to growing corn?
A) Dry and arid
B) Wet and swampy
C) Cold and mountainous
D) Warm and humid
  • 30. What is the bract that encloses the ear of corn called?
A) Husk
B) Cob
C) Silk
D) Kernel
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