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