How to Identify and Classify Sweet Potatoes
  • 1. What plant family do sweet potatoes belong to?
A) Convolvulaceae
B) Fabaceae
C) Solanaceae
D) Brassicaceae
  • 2. True or false: Sweet potatoes are roots.
A) False
B) Only in some varieties
C) True
D) Sometimes
  • 3. Which characteristic is MOST important for identifying different sweet potato varieties?
A) Flower color
B) Vine length
C) Leaf shape
D) Skin and flesh color
  • 4. What color is typically associated with sweet potatoes high in beta-carotene?
A) White
B) Purple
C) Orange
D) Yellow
  • 5. Which of these is NOT a common flesh color for sweet potatoes?
A) Orange
B) White
C) Blue
D) Purple
  • 6. What texture is commonly associated with 'dry-flesh' sweet potatoes?
A) Moist
B) Syrupy
C) Gummy
D) Starchy
  • 7. What is a key indicator of a mature sweet potato ready for harvesting?
A) Vine is completely dead
B) Flower production stops
C) Skins easily scrapes off
D) Leaves turn yellow
  • 8. What is the typical shape of a sweet potato?
A) Elongated and tapered
B) Square
C) Like a golf ball
D) Perfectly round
  • 9. Which environment do sweet potatoes thrive best in?
A) Warm and humid
B) Cold and wet
C) Dry and arid
D) Temperate and shady
  • 10. What is the purpose of 'curing' sweet potatoes after harvest?
A) Heal wounds and improve flavor
B) Prevent sprouting
C) Increase sweetness
D) Make them easier to peel
  • 11. What differentiates Beauregard from other varieties?
A) Purple skin, white flesh
B) Copper skin, orange flesh
C) White skin, yellow flesh
D) Red skin, purple flesh
  • 12. What is the general skin color of Japanese sweet potatoes?
A) White
B) Brown
C) Orange
D) Purple
  • 13. What is the flesh color of most Japanese sweet potato varieties?
A) Red
B) White/Yellowish
C) Orange
D) Purple
  • 14. What texture are Japanese sweet potatoes known to have?
A) Watery
B) Dry and fluffy
C) Very moist
D) Like mashed potatoes
  • 15. Which sweet potato variety is known for its deep purple flesh?
A) Garnet
B) Jewel
C) Hannah
D) Ube
  • 16. What is the typical skin color of a Stokes Purple sweet potato?
A) Tan
B) Orange
C) Dark purple
D) Reddish-brown
  • 17. Which sweet potato variety is known for its creamy white flesh and nutty flavor?
A) Hannah
B) Garnet
C) Stokes Purple
D) Beauregard
  • 18. Which sweet potato typically has a rose-colored skin and deep orange flesh?
A) Hannah
B) Japanese
C) Garnet
D) Ube
  • 19. True or false: Sweet potatoes are tubers.
A) Depends on the region
B) True
C) Sometimes
D) False
  • 20. What is the primary method of propagating sweet potatoes?
A) Cuttings
B) Grafting
C) Slips
D) Seeds
  • 21. What is the ideal soil pH for growing sweet potatoes?
A) 4.0-5.0
B) 7.0-8.0
C) 5.5-6.5
D) 6.5-7.5
  • 22. Sweet potatoes are a good source of what?
A) Vitamin A
B) Vitamin D
C) Vitamin B12
D) Vitamin E
  • 23. Which storage condition is best for sweet potatoes?
A) Warm and humid
B) Cold and wet
C) Cool and dry
D) Freezer
  • 24. What problem is indicated by small holes in sweet potato leaves?
A) Spider mites
B) Whiteflies
C) Aphids
D) Sweet potato weevils
  • 25. Which country is the largest producer of sweet potatoes?
A) Indonesia
B) China
C) United States
D) Nigeria
  • 26. What type of root is the Sweet Potato?
A) Taproot
B) Aerial root
C) Fibrous root
D) Storage root
  • 27. Which characteristic is LEAST helpful in classifying sweet potato varieties?
A) Shape of potato
B) Number of leaves
C) Flesh moisture
D) Skin texture
  • 28. What is a common culinary use for Ube sweet potatoes?
A) Stews
B) Salads
C) Desserts
D) Fries
  • 29. What does 'curing' improve in sweet potatoes?
A) Size
B) Vitamin Content
C) Color
D) Storage life
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