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How to Identify and Classify Napa Cabbages
Contributed by: Crossley
  • 1. What is the scientific name for Napa cabbage?
A) Spinacia oleracea
B) Brassica oleracea var. capitata
C) Brassica rapa subsp. pekinensis
D) Lactuca sativa
  • 2. Napa cabbage is originally from which region?
A) North America
B) China
C) South America
D) Europe
  • 3. What is the typical shape of a Napa cabbage head?
A) Spiky
B) Oblong
C) Flat
D) Round
  • 4. What is the texture of Napa cabbage leaves?
A) Crinkled
B) Waxy
C) Smooth
D) Hairy
  • 5. What color are Napa cabbage leaves typically?
A) Red
B) Dark green
C) Purple
D) Light green
  • 6. What type of leaf arrangement does Napa cabbage have?
A) Opposite
B) Alternate
C) Whorled
D) Rosette
  • 7. Which part of the Napa cabbage is most commonly eaten?
A) Leaves
B) Flowers
C) Stem
D) Root
  • 8. What is the flavor profile of Napa cabbage?
A) Mild and slightly sweet
B) Spicy and sharp
C) Sour and acidic
D) Bitter and pungent
  • 9. What is a common dish that uses Napa cabbage?
A) Guacamole
B) Kimchi
C) Coleslaw
D) Sauerkraut
  • 10. How does Napa cabbage differ from regular cabbage (green cabbage)?
A) Darker color
B) More tender leaves
C) Tighter head
D) More bitter taste
  • 11. What is a common pest that affects Napa cabbage?
A) Earthworms
B) Aphids
C) Ladybugs
D) Bees
  • 12. What type of soil is best for growing Napa cabbage?
A) Rocky soil
B) Clay-heavy soil
C) Sandy, dry soil
D) Well-drained, fertile soil
  • 13. What climate is most suitable for Napa cabbage cultivation?
A) Arid desert
B) Tropical rainforest
C) Cool weather
D) Hot and humid
  • 14. Napa cabbage is a good source of which vitamin?
A) Vitamin B12
B) Vitamin D
C) Vitamin A
D) Vitamin C
  • 15. Which family does Napa cabbage belong to?
A) Brassicaceae
B) Asteraceae
C) Solanaceae
D) Fabaceae
  • 16. What is the best way to store Napa cabbage?
A) Freeze without blanching
B) Refrigerate in a plastic bag
C) Store in direct sunlight
D) Leave at room temperature
  • 17. What is the best time of year to harvest Napa cabbage?
A) Summer
B) Winter
C) Spring
D) Fall
  • 18. What is bolting in Napa cabbage?
A) Root rot
B) Premature flowering
C) Leaf burn
D) Head splitting
  • 19. What can cause Napa cabbage to bolt?
A) Consistent watering
B) Shade
C) High temperatures
D) Rich soil
  • 20. What is the plant type of Napa cabbage?
A) Annual
B) Perennial
C) Tree
D) Biennial, grown as an annual
  • 21. What is the average size of a mature Napa cabbage head?
A) 0.1-0.2 kg
B) 1-2 kg
C) 10-20 kg
D) 5-10 kg
  • 22. What is a benefit of consuming Napa cabbage?
A) Causes digestive issues
B) High in saturated fat
C) Rich in antioxidants
D) Lacks fiber
  • 23. What are 'savoyed' leaves in the context of cabbages?
A) Spiny leaves
B) Hairy leaves
C) Smooth leaves
D) Wrinkled leaves
  • 24. What is one way to prevent clubroot in Napa cabbage?
A) Waterlog the soil
B) Plant in acidic soil
C) Ignore crop rotation
D) Maintain soil pH above 6.8
  • 25. Which of the following is a variety of Napa cabbage?
A) January King
B) Blues
C) Savoy King
D) Red Acre
  • 26. What planting depth is recommended for Napa cabbage seeds?
A) No depth, sow on surface
B) 1/4 to 1/2 inch
C) 1 inch
D) 2-3 inches
  • 27. What is the ideal spacing between Napa cabbage plants?
A) 2-3 inches
B) 3-4 feet
C) 12-18 inches
D) 6 inches
  • 28. What type of fertilizer is beneficial for Napa cabbage?
A) High in nitrogen
B) High in phosphorus
C) Completely lacking nitrogen
D) High in potassium
  • 29. Why should you avoid overhead watering of Napa cabbage?
A) To prevent fungal diseases
B) To prevent soil erosion
C) To conserve water
D) It is not necessary
  • 30. How to identify Napa cabbage seedlings?
A) Oblong, slightly hairy leaves
B) Round, smooth leaves
C) Fuzzy, red leaves
D) Spiky, dark green leaves
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