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