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