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) Europe
B) China
C) South America
D) North America
  • 3. What is the typical shape of a Napa cabbage head?
A) Spiky
B) Oblong
C) Round
D) Flat
  • 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) Red
C) Light green
D) Purple
  • 6. What type of leaf arrangement does Napa cabbage have?
A) Whorled
B) Alternate
C) Rosette
D) Opposite
  • 7. Which part of the Napa cabbage is most commonly eaten?
A) Root
B) Stem
C) Flowers
D) Leaves
  • 8. What is the flavor profile of Napa cabbage?
A) Spicy and sharp
B) Bitter and pungent
C) Mild and slightly sweet
D) Sour and acidic
  • 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) More tender leaves
C) Darker color
D) Tighter head
  • 11. What is a common pest that affects Napa cabbage?
A) Aphids
B) Earthworms
C) Ladybugs
D) Bees
  • 12. What type of soil is best for growing Napa cabbage?
A) Well-drained, fertile soil
B) Clay-heavy soil
C) Sandy, dry soil
D) Rocky soil
  • 13. What climate is most suitable for Napa cabbage cultivation?
A) Arid desert
B) Cool weather
C) Hot and humid
D) Tropical rainforest
  • 14. Napa cabbage is a good source of which vitamin?
A) Vitamin B12
B) Vitamin D
C) Vitamin C
D) Vitamin A
  • 15. Which family does Napa cabbage belong to?
A) Solanaceae
B) Fabaceae
C) Asteraceae
D) Brassicaceae
  • 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) Winter
B) Spring
C) Summer
D) Fall
  • 18. What is bolting in Napa cabbage?
A) Root rot
B) Head splitting
C) Premature flowering
D) Leaf burn
  • 19. What can cause Napa cabbage to bolt?
A) Shade
B) Consistent watering
C) High temperatures
D) Rich soil
  • 20. What is the plant type of Napa cabbage?
A) Annual
B) Biennial, grown as an annual
C) Tree
D) Perennial
  • 21. What is the average size of a mature Napa cabbage head?
A) 5-10 kg
B) 0.1-0.2 kg
C) 10-20 kg
D) 1-2 kg
  • 22. What is a benefit of consuming Napa cabbage?
A) Lacks fiber
B) Rich in antioxidants
C) High in saturated fat
D) Causes digestive issues
  • 23. What are 'savoyed' leaves in the context of cabbages?
A) Spiny leaves
B) Wrinkled leaves
C) Hairy leaves
D) Smooth 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) Red Acre
B) January King
C) Savoy King
D) Blues
  • 26. What planting depth is recommended for Napa cabbage seeds?
A) No depth, sow on surface
B) 2-3 inches
C) 1 inch
D) 1/4 to 1/2 inch
  • 27. What is the ideal spacing between Napa cabbage plants?
A) 12-18 inches
B) 3-4 feet
C) 2-3 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) Spiky, dark green leaves
D) Fuzzy, red leaves
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