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