How to Identify and Classify Sweet Potatoes
  • 1. What plant family do sweet potatoes belong to?
A) Fabaceae
B) Brassicaceae
C) Solanaceae
D) Convolvulaceae
  • 2. True or false: Sweet potatoes are roots.
A) Only in some varieties
B) True
C) False
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) Yellow
B) White
C) Orange
D) Purple
  • 5. Which of these is NOT a common flesh color for sweet potatoes?
A) Purple
B) Blue
C) Orange
D) White
  • 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) Skins easily scrapes off
C) Leaves turn yellow
D) Flower production stops
  • 8. What is the typical shape of a sweet potato?
A) Perfectly round
B) Elongated and tapered
C) Square
D) Like a golf ball
  • 9. Which environment do sweet potatoes thrive best in?
A) Dry and arid
B) Temperate and shady
C) Cold and wet
D) Warm and humid
  • 10. What is the purpose of 'curing' sweet potatoes after harvest?
A) Increase sweetness
B) Prevent sprouting
C) Make them easier to peel
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) Purple
B) Orange
C) Brown
D) White
  • 13. What is the flesh color of most Japanese sweet potato varieties?
A) Orange
B) White/Yellowish
C) Purple
D) Red
  • 14. What texture are Japanese sweet potatoes known to have?
A) Like mashed potatoes
B) Very moist
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) Stokes Purple
B) Beauregard
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) Sometimes
B) True
C) Depends on the region
D) False
  • 20. What is the primary method of propagating sweet potatoes?
A) Slips
B) Grafting
C) Cuttings
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 A
D) Vitamin E
  • 23. Which storage condition is best for sweet potatoes?
A) Cold and wet
B) Cool and dry
C) Warm and humid
D) Freezer
  • 24. What problem is indicated by small holes in sweet potato leaves?
A) Aphids
B) Spider mites
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) Taproot
C) Fibrous root
D) Storage root
  • 27. Which characteristic is LEAST helpful in classifying sweet potato varieties?
A) Number of leaves
B) Flesh moisture
C) Shape of potato
D) Skin texture
  • 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) Color
C) Storage life
D) Vitamin Content
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