How to Identify and Classify Pitayas
  • 1. What is the most common flesh color for Hylocereus undatus pitayas?
A) Purple
B) White
C) Yellow
D) Red
  • 2. What type of stem does a pitaya plant have?
A) Woody tree
B) Succulent shrub
C) Herbaceous vine
D) Climbing cactus
  • 3. Which genus is most commonly associated with red-fleshed pitayas?
A) Opuntia
B) Hylocereus
C) Selenicereus
D) Epiphyllum
  • 4. What is the characteristic of a pitaya's skin?
A) Scaly
B) Fuzzy
C) Waxy
D) Smooth
  • 5. How are the flowers of most pitaya species described?
A) Fragrant
B) Diurnal
C) Nocturnal
D) Small
  • 6. Which of these pitaya species typically has yellow skin and white flesh?
A) Hylocereus undatus
B) Hylocereus polyrhizus
C) Selenicereus megalanthus
D) Hylocereus costaricensis
  • 7. What is the shape of a typical pitaya fruit?
A) Oblong
B) Round
C) Triangular
D) Square
  • 8. The 'scales' on pitaya fruit are technically what?
A) Bracts
B) Flowers
C) Spines
D) Leaves
  • 9. What is the primary method of pollination for most pitaya varieties?
A) Cross-pollination
B) Water pollination
C) Wind pollination
D) Self-pollination
  • 10. Which environmental condition is crucial for pitaya flowering and fruit production?
A) Sufficient sunlight
B) Consistent rainfall
C) Freezing temperatures
D) High humidity
  • 11. What distinguishes Hylocereus costaricensis from Hylocereus undatus?
A) Fruit size
B) Spine density
C) Flesh color
D) Plant height
  • 12. Which of these is NOT a typical way to propagate pitaya?
A) Grafting
B) Air layering
C) Seed burial
D) Stem cuttings
  • 13. What is the typical texture of pitaya flesh?
A) Gritty and hard
B) Firm and dry
C) Seedy and soft
D) Fibrous and tough
  • 14. What does 'pitaya' commonly refer to?
A) The fruit of certain cactus species
B) A type of desert lizard
C) A traditional Mexican dance
D) A specific type of flower
  • 15. What is a key characteristic of Selenicereus megalanthus that helps identify it?
A) Red flesh
B) Smooth skin
C) Small fruit size
D) Thorny skin
  • 16. Which country is a major producer of pitayas?
A) Canada
B) Vietnam
C) Russia
D) Brazil
  • 17. What is the role of aerial roots in pitaya plants?
A) Nutrient absorption from the soil
B) Water absorption from the air
C) Attachment and support
D) Photosynthesis
  • 18. The edible seeds of the pitaya are typically:
A) Small and black
B) Green and soft
C) Large and brown
D) Red and hard
  • 19. What does 'Hylocereus' mean?
A) Desert flower
B) Night blooming
C) Forest cactus
D) Climbing vine
  • 20. What is the approximate size range of a mature pitaya fruit?
A) 2-4 feet
B) 1-3 inches
C) 15-20 inches
D) 4-12 inches
  • 21. Which pitaya is known for its particularly fragrant flowers?
A) Selenicereus megalanthus
B) All of them
C) Hylocereus undatus
D) Hylocereus costaricensis
  • 22. Why is proper drainage important for pitaya plants?
A) Encourages flowering
B) Prevents root rot
C) Enhances flavor
D) Increases fruit size
  • 23. What type of climate is best suited for growing pitayas?
A) Tropical and subtropical
B) Desert
C) Temperate
D) Arctic
  • 24. What visual cue indicates a pitaya fruit is nearing ripeness?
A) Dull and faded color
B) Hard and firm texture
C) Bright and vibrant color
D) Green coloration
  • 25. What is a common pest that affects pitaya plants?
A) Earthworms
B) Mealybugs
C) Ladybugs
D) Grasshoppers
  • 26. How many petals does a pitaya flower usually have?
A) Many
B) None
C) Four
D) Five
  • 27. Which of these is NOT a common use for pitaya fruit?
A) Desserts and jams
B) Fresh consumption
C) Juices and smoothies
D) Fuel source
  • 28. What do pitaya flowers need to successfully grow fruit?
A) Pruning
B) Fertilizer
C) Pollination
D) Direct sunlight
  • 29. What is the skin texture of Hylocereus polyrhizus
A) Thorny scales
B) Bumpy scales
C) Smooth scales
D) No scales
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