How to Identify and Classify Celery Stalks
  • 1. What is the primary characteristic used to initially assess a celery stalk's quality?
A) Leaf Size
B) Color Intensity
C) Root Length
D) Firmness and Crispness
  • 2. What does 'pithiness' refer to in celery stalks?
A) The outer layer's thickness
B) Hollow or spongy texture in the stalk
C) The length of the stalk
D) The amount of moisture present
  • 3. Which color indicates the highest quality in most celery varieties?
A) Yellowish-Green
B) Dark Green
C) Light to Medium Green
D) White
  • 4. What does uniform stalk shape suggest about celery quality?
A) Exposure to excessive sunlight
B) Over-fertilization
C) Lack of irrigation
D) Consistent growth and development
  • 5. Why are leaves important for assessing celery stalks?
A) They are an indication of disease presence
B) They indicate freshness and overall health
C) They are used for propagation
D) They determine the celery's sweetness
  • 6. What does the presence of cracks on a celery stalk indicate?
A) Resistance to pests
B) Optimal growing conditions
C) Natural stem markings
D) Potential water stress or damage
  • 7. Which of the following is NOT a common variety of celery?
A) Purple Giant
B) Utah Celery
C) Pascal Celery
D) Golden Self-Blanching
  • 8. What does 'bolting' refer to in the context of celery?
A) Root rot
B) Excessive growth of leaves
C) Development of side shoots
D) Premature flowering, affecting stalk quality
  • 9. What does it mean when a celery stalk feels soft or rubbery?
A) It is likely old or dehydrated
B) It indicates it's a specific variety
C) It is a sign of high sugar content
D) It's been exposed to cold temperatures
  • 10. Why is celery often classified by stalk length?
A) To determine its nutritional value
B) To measure its sweetness
C) For consistent grading and packaging
D) To predict its storage life
  • 11. What does the term 'ribs' refer to on a celery stalk?
A) The individual stalks making up the bunch
B) The leaf veins
C) The root structure
D) The outer covering of the stalk
  • 12. What is a common pest that can affect celery stalks?
A) Ladybugs
B) Earthworms
C) Bees
D) Aphids
  • 13. What disease commonly impacts celery stalks?
A) Tomato wilt
B) Grape mildew
C) Celery blight
D) Apple scab
  • 14. Which condition often causes celery to become bitter?
A) High soil pH
B) Too much sunlight
C) Excessive nitrogen
D) Lack of water
  • 15. What type of soil is best for growing high-quality celery?
A) Well-drained, rich in organic matter
B) Sandy soil
C) Rocky soil
D) Clay soil
  • 16. What does 'self-blanching' celery mean?
A) It requires manual blanching
B) It grows faster than other varieties
C) It is more resistant to diseases
D) It naturally turns lighter without covering
  • 17. How should celery stalks be stored to maintain freshness?
A) Left in water at room temperature
B) At room temperature in direct sunlight
C) Frozen without any preparation
D) Refrigerated in a plastic bag
  • 18. What is the ideal temperature for storing celery?
A) 50-55°F (10-13°C)
B) 40-45°F (4-7°C)
C) 60-65°F (15-18°C)
D) 32-36°F (0-2°C)
  • 19. What is the significance of 'stringiness' in celery?
A) It signifies high nutrient density
B) It indicates toughness and fibrous texture
C) It shows high water content
D) It denotes a younger stalk
  • 20. What is the best way to prevent celery blight?
A) Applying high-nitrogen fertilizer
B) Planting in shaded areas
C) Over-watering the plants
D) Use disease-resistant varieties
  • 21. What contributes to the characteristic 'crunch' of fresh celery?
A) High water content and turgor pressure
B) Absence of fiber
C) Presence of thick cell walls
D) High sugar concentration
  • 22. Why is proper spacing important when planting celery?
A) To encourage faster growth
B) To increase soil temperature
C) To ensure adequate air circulation and sunlight
D) To reduce the need for watering
  • 23. What is the role of potassium in celery growth?
A) Increases sweetness
B) Promotes strong stalk development
C) Enhances leaf color
D) Prevents bolting
  • 24. What does the appearance of brown spots on celery indicate?
A) Natural stem markings
B) Possible disease or pest infestation
C) High nutrient content
D) Exposure to cold temperatures
  • 25. Why is it important to harvest celery at the right maturity?
A) To increase shelf life
B) To optimize flavor and texture
C) To reduce bitterness
D) To prevent disease
  • 26. What is the purpose of blanching celery?
A) To increase the crispness of the stalks
B) To make the stalks paler and milder in flavor
C) To protect the stalks from pests
D) To add sweetness to the stalks
  • 27. What does the 'heart' of the celery stalk refer to?
A) The flower bud
B) The outer protective layer
C) The innermost, tender stalks
D) The root system
  • 28. What is the role of calcium in celery plants?
A) Enhances water absorption
B) Increases chlorophyll production
C) Strengthens cell walls, preventing cracking
D) Improves root growth
  • 29. How does too much nitrogen affect celery?
A) Strengthens the stalks
B) Can lead to excessive leaf growth and weak stalks
C) Increases sweetness
D) Prevents disease
  • 30. Which harvest stage of celery is generally preferred for fresh market sales?
A) Flowering stage, with seed stalks forming
B) Very young, with small and tender stalks
C) Fully mature with good stalk size and firmness
D) Overripe, showing signs of yellowing
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