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