How to Identify and Classify Kohlrabis
  • 1. What family does kohlrabi belong to?
A) Cucurbitaceae
B) Brassicaceae
C) Poaceae
D) Solanaceae
  • 2. What part of the plant is the edible portion of kohlrabi?
A) Root
B) Leaves
C) Swollen stem
D) Fruit
  • 3. What are the two most common kohlrabi colors?
A) Green and Purple
B) Orange and White
C) Black and Brown
D) Red and Yellow
  • 4. A kohlrabi bulb is considered overgrown and less palatable when it exceeds what diameter?
A) 3 inches
B) 6 inches
C) 1 inch
D) 9 inches
  • 5. What is the texture of kohlrabi's flesh typically described as?
A) Fibrous and sour
B) Crisp and slightly sweet
C) Mushy and bitter
D) Grainy and bland
  • 6. Which growing condition can lead to woody kohlrabi?
A) Excessive fertilization
B) Too much shade
C) Overcrowding
D) Insufficient water
  • 7. What leaf characteristic is often associated with kohlrabi varieties?
A) Spiny edges
B) Waxy bloom
C) Hairy surface
D) Pungent smell
  • 8. Which of the following is NOT a common use for kohlrabi?
A) Soups
B) Fuel
C) Stir-fries
D) Salads
  • 9. What is a common pest that affects kohlrabi?
A) Spider mites
B) Aphids
C) Nematodes
D) Cabbage worms
  • 10. Which nutrient is kohlrabi particularly rich in?
A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin B12
  • 11. What shape is the kohlrabi bulb typically?
A) Elongated
B) Cylindrical
C) Spherical
D) Cone-shaped
  • 12. The flavor of kohlrabi is often compared to which other vegetable?
A) Potato
B) Beet
C) Turnip
D) Carrot
  • 13. Which climate is best suited for growing kohlrabi?
A) Tropical
B) Mediterranean
C) Desert
D) Cool
  • 14. When should kohlrabi be harvested?
A) When leaves turn yellow
B) When flowers appear
C) When bulb reaches desired size
D) After the first frost
  • 15. What does 'kohlrabi' literally translate to?
A) Cabbage turnip
B) Green globe
C) Sweet stem
D) Root vegetable
  • 16. Which of the following is a common kohlrabi variety?
A) Early White Vienna
B) Golden Delicious
C) Black Beauty
D) Crimson King
  • 17. How does nitrogen deficiency manifest in kohlrabi?
A) Excessive leaf production
B) Stunted growth and yellowing leaves
C) Bulb cracking
D) Dark spots on the bulb
  • 18. What soil pH range is ideal for kohlrabi?
A) 6.0-6.8
B) 8.5-9.5
C) 4.5-5.5
D) 7.5-8.5
  • 19. What type of fertilizer is generally recommended for kohlrabi?
A) High phosphorus fertilizer
B) High nitrogen fertilizer
C) High potassium fertilizer
D) Balanced fertilizer
  • 20. What is 'bolting' in kohlrabi?
A) Premature flowering
B) Leaf curl
C) Root rot
D) Bulb splitting
  • 21. Which part of the kohlrabi plant can be cooked similarly to collard greens?
A) Leaves
B) Root
C) Stem
D) Flower
  • 22. How should you store harvested kohlrabi?
A) At room temperature
B) In the freezer
C) In the refrigerator
D) In direct sunlight
  • 23. Which cooking method best preserves kohlrabi's nutrients?
A) Boiling
B) Steaming
C) Baking
D) Frying
  • 24. What is the primary cause of kohlrabi splitting?
A) Poor soil drainage
B) Inconsistent watering
C) Excessive sunlight
D) Lack of fertilization
  • 25. What companion plant is beneficial to kohlrabi?
A) Fennel
B) Potatoes
C) Marigolds
D) Rosemary
  • 26. What is the typical spacing between kohlrabi plants?
A) 1-2 inches
B) 12-18 inches
C) 24-36 inches
D) 6-9 inches
  • 27. Why are kohlrabi seedlings susceptible to flea beetles?
A) The plant's scent
B) Exposure to wind
C) Their small size
D) Soil moisture
  • 28. What is the effect of boron deficiency on kohlrabi?
A) Leaf spot
B) Hollow stem
C) Flower drop
D) Root swelling
  • 29. What is a common way to prepare kohlrabi for eating raw?
A) Deep frying
B) Grilling
C) Boiling whole
D) Peeling and slicing
  • 30. Which part of the world is kohlrabi believed to have originated from?
A) Asia
B) Africa
C) South America
D) Europe
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