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