How to Identify and Classify Jujubes
  • 1. What family do jujubes belong to?
A) Fabaceae
B) Rosaceae
C) Rhamnaceae
D) Solanaceae
  • 2. Jujubes are native to what region?
A) Africa
B) North America
C) South America
D) Asia
  • 3. What is the typical shape of a 'Li' jujube?
A) Pear-shaped
B) Oblong
C) Round
D) Spindle-shaped
  • 4. Which jujube variety is known for its elongated shape?
A) Lang
B) Honey Jar
C) Li
D) Shanxi Li
  • 5. What is a key characteristic of 'Honey Jar' jujubes?
A) Exceptional sweetness
B) Large size
C) Fibrous texture
D) Tart flavor
  • 6. What is the typical skin color of a ripe jujube?
A) Purple
B) Reddish-brown
C) Green
D) Yellow
  • 7. The 'Shanxi Li' variety is known for its...
A) Small size and early ripening
B) Distinct pear shape
C) Low sugar content
D) Large size and excellent fruit quality
  • 8. What type of tree is a jujube?
A) Deciduous
B) Coniferous
C) Evergreen
D) Palm
  • 9. Which of these is a common use for jujubes?
A) Wood for furniture
B) Dried fruit
C) Essential oil extraction
D) Animal feed
  • 10. What is the texture of a ripe jujube fruit?
A) Gummy and chewy
B) Watery and bland
C) Soft and mushy
D) Crisp and apple-like
  • 11. What is the chill hour requirement for most jujube varieties?
A) Medium
B) High
C) Low
D) Very High
  • 12. What is a distinguishing feature of jujube leaves?
A) Hairy texture
B) Large size
C) Needle-like shape
D) Glossy surface
  • 13. Which propagation method is commonly used for jujubes?
A) Air layering
B) Cuttings
C) Seed
D) Grafting
  • 14. What is a common pest of jujube trees?
A) Grasshoppers
B) Aphids
C) Caterpillars
D) Spider mites
  • 15. How can you tell if a jujube fruit is ripe?
A) Firm texture and green color
B) Full color change and slightly wrinkled skin
C) Sticky surface and strong aroma
D) Soft texture and uniform color
  • 16. What is a primary benefit of growing jujubes?
A) High shade provision
B) Fast growth rate
C) High water requirements
D) Drought tolerance
  • 17. The 'So' variety is known for its...
A) High disease resistance
B) Unique flavor
C) Small size and early ripening
D) Large size and late ripening
  • 18. Jujube fruits are rich in what nutrient?
A) Vitamin C
B) Vitamin D
C) Vitamin A
D) Vitamin B12
  • 19. What type of climate is ideal for jujube cultivation?
A) Warm, dry climate
B) Cool, wet climate
C) Cold, mountainous climate
D) Humid, tropical climate
  • 20. How long can jujube fruits typically be stored?
A) Several weeks
B) A few days
C) A few months
D) One year
  • 21. What is the scientific name for the common jujube?
A) Malus domestica
B) Citrus sinensis
C) Prunus avium
D) Ziziphus jujuba
  • 22. What soil type is best for jujube trees?
A) Well-drained soil
B) Waterlogged soil
C) Sandy soil
D) Heavy clay soil
  • 23. What is the primary use of the jujube's root system?
A) Erosion control
B) Water purification
C) Nitrogen fixation
D) Support for other plants
  • 24. Which of these is NOT a common way to consume jujubes?
A) Fresh
B) Dried
C) Candied
D) Pickled
  • 25. What is a characteristic of 'Sherwood' jujubes?
A) Dwarf size
B) Upright growth habit
C) Extremely late ripening
D) Weeping growth habit
  • 26. What is a common method for protecting jujube trees from birds?
A) Spraying with pesticides
B) Netting
C) Using scarecrows
D) Planting thorny shrubs around the tree
  • 27. How do jujubes differ from dates?
A) Higher moisture content
B) Grows on palm trees
C) Crisper texture when fresh
D) Larger size
  • 28. What is a distinguishing feature of jujube flowers?
A) Small and fragrant
B) Large and showy
C) Brightly colored
D) Odorless
  • 29. What is a characteristic of container-grown jujube trees?
A) Bear fruit earlier
B) Are less susceptible to pests
C) Require more frequent watering
D) Grow larger than in-ground trees
  • 30. What is the best time to prune jujube trees?
A) Any time of year
B) Late autumn
C) Mid-summer
D) Late winter or early spring
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