How to Identify and Classify Napa Cabbages
  • 1. What is the scientific name for Napa cabbage?
A) Spinacia oleracea
B) Lactuca sativa
C) Brassica rapa subsp. pekinensis
D) Brassica oleracea var. capitata
  • 2. Napa cabbage is originally from which region?
A) China
B) South America
C) North America
D) Europe
  • 3. What is the typical shape of a Napa cabbage head?
A) Flat
B) Round
C) Spiky
D) Oblong
  • 4. What is the texture of Napa cabbage leaves?
A) Crinkled
B) Smooth
C) Waxy
D) Hairy
  • 5. What color are Napa cabbage leaves typically?
A) Red
B) Purple
C) Dark green
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) Stem
C) Root
D) Flowers
  • 8. What is the flavor profile of Napa cabbage?
A) Sour and acidic
B) Spicy and sharp
C) Mild and slightly sweet
D) Bitter and pungent
  • 9. What is a common dish that uses Napa cabbage?
A) Kimchi
B) Guacamole
C) Coleslaw
D) Sauerkraut
  • 10. How does Napa cabbage differ from regular cabbage (green cabbage)?
A) More bitter taste
B) More tender leaves
C) Tighter head
D) Darker color
  • 11. What is a common pest that affects Napa cabbage?
A) Bees
B) Ladybugs
C) Aphids
D) Earthworms
  • 12. What type of soil is best for growing Napa cabbage?
A) Clay-heavy soil
B) Rocky soil
C) Sandy, dry soil
D) Well-drained, fertile soil
  • 13. What climate is most suitable for Napa cabbage cultivation?
A) Hot and humid
B) Cool weather
C) Arid desert
D) Tropical rainforest
  • 14. Napa cabbage is a good source of which vitamin?
A) Vitamin A
B) Vitamin C
C) Vitamin B12
D) Vitamin D
  • 15. Which family does Napa cabbage belong to?
A) Fabaceae
B) Asteraceae
C) Brassicaceae
D) Solanaceae
  • 16. What is the best way to store Napa cabbage?
A) Refrigerate in a plastic bag
B) Store in direct sunlight
C) Freeze without blanching
D) Leave at room temperature
  • 17. What is the best time of year to harvest Napa cabbage?
A) Winter
B) Spring
C) Summer
D) Fall
  • 18. What is bolting in Napa cabbage?
A) Premature flowering
B) Leaf burn
C) Root rot
D) Head splitting
  • 19. What can cause Napa cabbage to bolt?
A) Rich soil
B) Consistent watering
C) Shade
D) High temperatures
  • 20. What is the plant type of Napa cabbage?
A) Annual
B) Tree
C) Biennial, grown as an annual
D) Perennial
  • 21. What is the average size of a mature Napa cabbage head?
A) 1-2 kg
B) 0.1-0.2 kg
C) 5-10 kg
D) 10-20 kg
  • 22. What is a benefit of consuming Napa cabbage?
A) Lacks fiber
B) High in saturated fat
C) Rich in antioxidants
D) Causes digestive issues
  • 23. What are 'savoyed' leaves in the context of cabbages?
A) Smooth leaves
B) Hairy leaves
C) Spiny 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) Maintain soil pH above 6.8
D) Ignore crop rotation
  • 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) 1/4 to 1/2 inch
B) 1 inch
C) No depth, sow on surface
D) 2-3 inches
  • 27. What is the ideal spacing between Napa cabbage plants?
A) 6 inches
B) 12-18 inches
C) 2-3 inches
D) 3-4 feet
  • 28. What type of fertilizer is beneficial for Napa cabbage?
A) High in nitrogen
B) High in potassium
C) Completely lacking nitrogen
D) High in phosphorus
  • 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) Spiky, dark green leaves
B) Oblong, slightly hairy leaves
C) Round, smooth leaves
D) Fuzzy, red leaves
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