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