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