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