How to Identify and Classify Leeks
  • 1. What plant family do leeks belong to?
A) Alliaceae
B) Solanaceae
C) Asteraceae
D) Brassicaceae
  • 2. The edible portion of a leek is primarily the:
A) Root
B) Flower
C) Stem and lower leaves
D) Seed
  • 3. What color is the 'shaft' of a well-blanched leek?
A) Purple
B) Brown
C) White
D) Green
  • 4. Which characteristic is MOST important when judging leek quality?
A) Root Size
B) Number of Leaves
C) Stem Length
D) Cleanliness
  • 5. What does 'bolting' in a leek refer to?
A) Rapid growth
B) Root rot
C) Leaf blight
D) Premature flowering
  • 6. What is a common pest that affects leeks?
A) Aphids
B) Onion thrips
C) Cabbage worms
D) Spider mites
  • 7. Which soil type is generally best for growing leeks?
A) Rocky soil
B) Clay soil
C) Well-drained loam
D) Sandy soil
  • 8. What is the typical spacing between leek plants?
A) 24-36 inches
B) 12-18 inches
C) 6-8 inches
D) 2-4 inches
  • 9. Which of these is a characteristic of the 'Bandit' leek variety?
A) Early maturing
B) Large size
C) Purple leaves
D) Strong onion flavor
  • 10. What is the purpose of 'earthing up' leeks?
A) To blanch the stem
B) To support the plant
C) To fertilize the roots
D) To prevent pests
  • 11. Leeks are typically harvested in which season?
A) Late Spring
B) Fall and Winter
C) Summer
D) Spring
  • 12. What shape are leek seeds?
A) Oval and White
B) Angular and Black
C) Flat and Red
D) Round and Brown
  • 13. Which of these is a disease that can affect leeks?
A) Powdery Mildew
B) Black Spot
C) Rust
D) White Rot
  • 14. How do you differentiate a leek from a green onion?
A) Leeks always have purple tips.
B) Green onions are always white at the base.
C) Green onions are harvested with the roots.
D) Leeks have a milder flavor and larger size.
  • 15. What is the best way to store harvested leeks?
A) In direct sunlight, uncovered.
B) In the freezer, chopped.
C) In the refrigerator, unwashed, in a plastic bag.
D) At room temperature, washed.
  • 16. What is a key difference between short-day and long-day leek varieties?
A) Long-day leeks are more resistant to pests.
B) Long-day leeks have a stronger flavor.
C) Short-day leeks are always larger.
D) Short-day leeks mature earlier in the season.
  • 17. Which nutrient is MOST important for leek growth?
A) Calcium
B) Phosphorus
C) Nitrogen
D) Potassium
  • 18. What planting method encourages long, white shafts?
A) Planting on a raised bed.
B) Planting on a slope.
C) Planting in a trench and gradually filling it in.
D) Planting in containers.
  • 19. Why is crop rotation important when growing leeks?
A) To increase sunlight exposure.
B) To make harvesting easier.
C) To improve soil drainage.
D) To prevent soil-borne diseases and pests.
  • 20. What is the ideal pH level for leek cultivation?
A) 8.5-9.5
B) 6.0-7.0
C) 4.0-5.0
D) 7.5-8.5
  • 21. Which continent did leeks originate from?
A) Asia
B) Africa
C) South America
D) Europe
  • 22. What is the botanical name for leeks?
A) Allium cepa
B) Allium sativum
C) Allium schoenoprasum
D) Allium ampeloprasum var. porrum
  • 23. How do you prepare leeks before cooking?
A) Soak in saltwater to remove any dirt.
B) Thoroughly wash between the layers.
C) Trim the roots and the green tops entirely.
D) Peel the outer layer off.
  • 24. Which of the following is NOT a way to propagate leeks?
A) Cuttings
B) Division (occasionally)
C) Transplants
D) Seeds
  • 25. Which of the following best describes the flavor profile of a leek?
A) Sweet and garlicky
B) Bitter and herbaceous
C) Spicy and pungent
D) Mild onion-like
  • 26. What is a 'leek moth'?
A) A type of fertilizer made from leeks.
B) A beneficial insect that pollinates leeks.
C) A hybrid variety of leek.
D) A pest that burrows into leek leaves.
  • 27. What is the proper technique for planting leek seedlings?
A) Make a hole with a dibber and drop the seedling in.
B) Plant the seedlings in clusters.
C) Bury the seedlings deeply, covering the first leaves.
D) Lay the seedlings flat on the soil surface.
  • 28. How does consistent watering impact leek development?
A) Increases the strength of the onion flavor.
B) Promotes uniform growth and prevents bolting.
C) Encourages root rot.
D) Causes the leeks to grow smaller.
  • 29. Which element does wood ash primarily provide to the soil, benefiting leek growth?
A) Phosphorus
B) Nitrogen
C) Potassium
D) Magnesium
  • 30. What is a visual indicator that leeks are ready for harvest?
A) The shaft reaches the desired thickness.
B) The plant begins to flower.
C) The roots become visible above the soil.
D) The leaves start to turn yellow.
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