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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) True
B) Sometimes
C) Only in some varieties
D) False
  • 3. Which characteristic is MOST important for identifying different sweet potato varieties?
A) Skin and flesh color
B) Flower color
C) Vine length
D) Leaf shape
  • 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) Blue
B) Orange
C) Purple
D) White
  • 6. What texture is commonly associated with 'dry-flesh' sweet potatoes?
A) Gummy
B) Starchy
C) Moist
D) Syrupy
  • 7. What is a key indicator of a mature sweet potato ready for harvesting?
A) Leaves turn yellow
B) Vine is completely dead
C) Flower production stops
D) Skins easily scrapes off
  • 8. What is the typical shape of a sweet potato?
A) Perfectly round
B) Square
C) Elongated and tapered
D) Like a golf ball
  • 9. Which environment do sweet potatoes thrive best in?
A) Dry and arid
B) Temperate and shady
C) Warm and humid
D) Cold and wet
  • 10. What is the purpose of 'curing' sweet potatoes after harvest?
A) Heal wounds and improve flavor
B) Make them easier to peel
C) Prevent sprouting
D) Increase sweetness
  • 11. What differentiates Beauregard from other varieties?
A) White skin, yellow flesh
B) Copper skin, orange flesh
C) Purple skin, white flesh
D) Red skin, purple flesh
  • 12. What is the general skin color of Japanese sweet potatoes?
A) White
B) Orange
C) Purple
D) Brown
  • 13. What is the flesh color of most Japanese sweet potato varieties?
A) Orange
B) Red
C) White/Yellowish
D) Purple
  • 14. What texture are Japanese sweet potatoes known to have?
A) Dry and fluffy
B) Very moist
C) Like mashed potatoes
D) Watery
  • 15. Which sweet potato variety is known for its deep purple flesh?
A) Jewel
B) Hannah
C) Ube
D) Garnet
  • 16. What is the typical skin color of a Stokes Purple sweet potato?
A) Dark purple
B) Reddish-brown
C) Orange
D) Tan
  • 17. Which sweet potato variety is known for its creamy white flesh and nutty flavor?
A) Beauregard
B) Hannah
C) Stokes Purple
D) Garnet
  • 18. Which sweet potato typically has a rose-colored skin and deep orange flesh?
A) Garnet
B) Japanese
C) Ube
D) Hannah
  • 19. True or false: Sweet potatoes are tubers.
A) False
B) True
C) Sometimes
D) Depends on the region
  • 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) 6.5-7.5
B) 7.0-8.0
C) 4.0-5.0
D) 5.5-6.5
  • 22. Sweet potatoes are a good source of what?
A) Vitamin D
B) Vitamin B12
C) Vitamin E
D) Vitamin A
  • 23. Which storage condition is best for sweet potatoes?
A) Cool and dry
B) Cold and wet
C) Freezer
D) Warm and humid
  • 24. What problem is indicated by small holes in sweet potato leaves?
A) Sweet potato weevils
B) Spider mites
C) Aphids
D) Whiteflies
  • 25. Which country is the largest producer of sweet potatoes?
A) United States
B) Indonesia
C) China
D) Nigeria
  • 26. What type of root is the Sweet Potato?
A) Aerial root
B) Taproot
C) Storage root
D) Fibrous root
  • 27. Which characteristic is LEAST helpful in classifying sweet potato varieties?
A) Shape of potato
B) Skin texture
C) Number of leaves
D) Flesh moisture
  • 28. What is a common culinary use for Ube sweet potatoes?
A) Fries
B) Desserts
C) Stews
D) Salads
  • 29. What does 'curing' improve in sweet potatoes?
A) Color
B) Storage life
C) Vitamin Content
D) Size
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