How to Identify and Classify Corn
  • 1. What is the primary method for identifying corn varieties?
A) Leaf shape
B) Kernel characteristics
C) Root depth
D) Soil type
  • 2. Which of these is NOT a type of corn?
A) Sweet corn
B) Wheat corn
C) Flint corn
D) Dent corn
  • 3. What is the defining feature of dent corn?
A) Hard outer layer
B) High sugar content
C) Indent on the kernel
D) Rounded kernel shape
  • 4. Sweet corn is harvested at what stage?
A) Mature stage
B) Milk stage
C) Silking stage
D) Dry stage
  • 5. Flint corn is also known as:
A) Popcorn
B) Waxy corn
C) Indian corn
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) Flour corn
D) Sweet 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) Tip cap
B) Germ
C) Outer covering
D) Endosperm
  • 10. What is the function of the endosperm in a corn kernel?
A) Protects the kernel from insects
B) Provides energy for germination
C) Attracts pollinators
D) Regulates water uptake
  • 11. Which part of the corn kernel contains the embryo?
A) Germ
B) Pericarp
C) Endosperm
D) Tip cap
  • 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) Food processing
B) Construction industry
C) Cosmetics industry
D) Textile 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) Sweet 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 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) Starch content
D) Kernel color
  • 18. What is the significance of kernel texture in corn classification?
A) Affects pollen dispersal
B) Determines plant disease resistance
C) Indicates starch composition
D) Influences water absorption
  • 19. Which of the following is true about popcorn kernels?
A) Contain a small amount of moisture
B) Are high in sugar content
C) Are completely dry inside
D) Have a soft outer shell
  • 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 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) Higher disease resistance
B) Taller plant height
C) Larger kernel size
D) Shorter time to harvest
  • 23. How does kernel size affect classification?
A) Kernel size is only linked to soil drainage
B) Kernel size has no role in classification
C) Kernel size is solely influenced by fertilization
D) Some types have characteristically larger kernels
  • 24. Why is understanding corn classification important?
A) Optimizes crop utilization
B) Only useful for genetic engineers
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) Dent Corn
C) Sweet Corn
D) Flint Corn
  • 26. What is the name for the measure of time for corn to mature?
A) Root Mass Density
B) Harvest Index
C) Growing Degree Days
D) Bushels per Acre
  • 27. What does 'standability' refer to in corn production?
A) Ability to tolerate drought
B) Ability to germinate quickly
C) Ability to resist insects
D) Ability to resist lodging
  • 28. How do farmers classify corn based on maturity?
A) Kernel weight
B) Days to maturity
C) Root depth
D) Plant height
  • 29. What climate is most suitable to growing corn?
A) Wet and swampy
B) Cold and mountainous
C) Dry and arid
D) Warm and humid
  • 30. What is the bract that encloses the ear of corn called?
A) Cob
B) Kernel
C) Husk
D) Silk
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