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