How to Identify and Classify Starfruits - Test
  • 1. What is the defining visual characteristic of a starfruit?
A) Bright red color
B) Smooth, waxy skin
C) Perfectly round shape
D) Distinctive star shape when sliced
  • 2. What is the scientific name of the starfruit tree?
A) Mangifera indica
B) Citrus sinensis
C) Averrhoa carambola
D) Malus domestica
  • 3. When is starfruit typically harvested?
A) Late summer to early winter
B) Late winter
C) Mid-summer
D) Early spring
  • 4. What is a key difference between sweet and sour varieties of starfruit?
A) Oxalic acid content
B) Number of ribs
C) Leaf shape
D) Size of the fruit
  • 5. Which of the following is a characteristic of a ripe starfruit?
A) Very hard texture
B) Presence of mold
C) Completely green color
D) Slightly yielding to pressure
  • 6. How many ridges (points of the star) does a typical starfruit have?
A) 7
B) 9
C) 3
D) 5
  • 7. Which color indicates a more mature starfruit?
A) Yellow-orange
B) Green
C) Dark brown
D) Light pink
  • 8. What climate is best suited for growing starfruit trees?
A) Temperate
B) Arctic
C) Desert
D) Tropical and subtropical
  • 9. What type of soil does starfruit prefer?
A) Clay soil
B) Well-drained soil
C) Sandy soil that retains water
D) Salty soil
  • 10. Why is it important to select the right variety of starfruit?
A) Taste and sweetness levels vary greatly
B) Size is the only variable
C) All varieties taste the same
D) Color is the only difference
  • 11. Which variety is generally considered sweeter?
A) Maher Dwarf
B) Golden Star
C) Newcomb
D) Arkin
  • 12. What internal feature can help differentiate varieties of starfruit?
A) The length of the ridges
B) The thickness of the skin
C) The presence or absence of seeds
D) The weight of the fruit
  • 13. What is the best way to store starfruit after harvesting?
A) Store in a paper bag at room temperature
B) Freeze immediately
C) Refrigerate at cool temperatures
D) Leave at room temperature in sunlight
  • 14. What is a common use for unripe, sour starfruit?
A) Eating raw
B) Pickling or chutney
C) Baking into pies
D) Making juice
  • 15. What nutritional component is starfruit relatively high in?
A) Protein
B) Calcium
C) Fat
D) Vitamin C
  • 16. What is a sign of overripe starfruit?
A) Bright, shiny skin
B) No aroma
C) Firm to the touch
D) Soft, mushy texture
  • 17. How does the color of the fruit indicate its stage?
A) Green when unripe, yellow/orange when ripe.
B) Orange when unripe, green when ripe
C) Red when unripe, blue when ripe
D) Black when unripe, white when ripe
  • 18. Which of the following diseases mostly affects starfruit?
A) Anthracnose
B) Apple Scab
C) Powdery Mildew
D) Citrus Canker
  • 19. What pest is known to damage starfruit trees?
A) Fruit flies
B) Aphids
C) Spider mites
D) Mealybugs
  • 20. Which part of the starfruit plant is commonly used for propagation?
A) Roots
B) Stem cuttings
C) Leaves
D) Flowers
  • 21. How should starfruit trees be pruned for optimal fruit production?
A) Never prune starfruit trees
B) Remove all new growth
C) Remove dead or crossing branches
D) Prune heavily in winter
  • 22. Which of these is NOT a use for starfruit?
A) As a fuel source
B) In desserts
C) As a garnish
D) In salads
  • 23. How does sun exposure affect the fruit?
A) More sun leads to larger fruit
B) Sunlight does not affect starfruit
C) More sun leads to sweeter fruit
D) More sun leads to bitter fruit
  • 24. What should you do if you find a starfruit with brown spots?
A) The spots are just sugar
B) Throw the fruit away immediately
C) Cut away the affected area
D) Wash the fruit thoroughly
  • 25. How does the shape of the ridge affect the flavor?
A) Rounded ridges indicate a sweet taste.
B) Flavor is consistent regardless of ridge shape.
C) Sharp ridges indicate a sour taste.
D) The shape of the ridge indicates the origin of the tree.
  • 26. What is the purpose of bagging the fruit on the tree?
A) To protect from pests.
B) To make the fruit larger.
C) To increase the sweetness.
D) To make the fruit change colors.
  • 27. What is a 'dwarf' starfruit variety?
A) A compact tree size
B) A faster growth rate
C) A sweeter flavor
D) A small fruit size
  • 28. Which of the following can increase the risk of toxicity of starfruit?
A) Kidney problems
B) Asthma
C) High blood pressure
D) Diabetes
  • 29. What is the best time of day to water starfruit trees?
A) Midday
B) Does not matter
C) Late evening
D) Early morning
  • 30. What type of fertilizer is recommended for starfruit trees?
A) High nitrogen fertilizer
B) Balanced fertilizer
C) High phosphorus fertilizer
D) High potassium fertilizer
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