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