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