How to Identify and Classify Jujubes
  • 1. What family do jujubes belong to?
A) Rosaceae
B) Rhamnaceae
C) Fabaceae
D) Solanaceae
  • 2. Jujubes are native to what region?
A) South America
B) Africa
C) North America
D) Asia
  • 3. What is the typical shape of a 'Li' jujube?
A) Round
B) Pear-shaped
C) Spindle-shaped
D) Oblong
  • 4. Which jujube variety is known for its elongated shape?
A) Li
B) Shanxi Li
C) Lang
D) Honey Jar
  • 5. What is a key characteristic of 'Honey Jar' jujubes?
A) Tart flavor
B) Exceptional sweetness
C) Fibrous texture
D) Large size
  • 6. What is the typical skin color of a ripe jujube?
A) Yellow
B) Reddish-brown
C) Purple
D) Green
  • 7. The 'Shanxi Li' variety is known for its...
A) Low sugar content
B) Distinct pear shape
C) Large size and excellent fruit quality
D) Small size and early ripening
  • 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) Animal feed
B) Essential oil extraction
C) Wood for furniture
D) Dried fruit
  • 10. What is the texture of a ripe jujube fruit?
A) Soft and mushy
B) Watery and bland
C) Crisp and apple-like
D) Gummy and chewy
  • 11. What is the chill hour requirement for most jujube varieties?
A) Very High
B) Low
C) High
D) Medium
  • 12. What is a distinguishing feature of jujube leaves?
A) Large size
B) Needle-like shape
C) Glossy surface
D) Hairy texture
  • 13. Which propagation method is commonly used for jujubes?
A) Seed
B) Cuttings
C) Air layering
D) Grafting
  • 14. What is a common pest of jujube trees?
A) Caterpillars
B) Spider mites
C) Grasshoppers
D) Aphids
  • 15. How can you tell if a jujube fruit is ripe?
A) Soft texture and uniform color
B) Sticky surface and strong aroma
C) Full color change and slightly wrinkled skin
D) Firm texture and green color
  • 16. What is a primary benefit of growing jujubes?
A) Fast growth rate
B) High shade provision
C) High water requirements
D) Drought tolerance
  • 17. The 'So' variety is known for its...
A) Unique flavor
B) Small size and early ripening
C) High disease resistance
D) Large size and late ripening
  • 18. Jujube fruits are rich in what nutrient?
A) Vitamin A
B) Vitamin B12
C) Vitamin D
D) Vitamin C
  • 19. What type of climate is ideal for jujube cultivation?
A) Humid, tropical climate
B) Cold, mountainous climate
C) Warm, dry climate
D) Cool, wet climate
  • 20. How long can jujube fruits typically be stored?
A) One year
B) Several weeks
C) A few days
D) A few months
  • 21. What is the scientific name for the common jujube?
A) Prunus avium
B) Malus domestica
C) Ziziphus jujuba
D) Citrus sinensis
  • 22. What soil type is best for jujube trees?
A) Well-drained soil
B) Sandy soil
C) Heavy clay soil
D) Waterlogged soil
  • 23. What is the primary use of the jujube's root system?
A) Erosion control
B) Nitrogen fixation
C) Water purification
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) Weeping growth habit
B) Upright growth habit
C) Dwarf size
D) Extremely late ripening
  • 26. What is a common method for protecting jujube trees from birds?
A) Netting
B) Spraying with pesticides
C) Using scarecrows
D) Planting thorny shrubs around the tree
  • 27. How do jujubes differ from dates?
A) Crisper texture when fresh
B) Grows on palm trees
C) Higher moisture content
D) Larger size
  • 28. What is a distinguishing feature of jujube flowers?
A) Odorless
B) Brightly colored
C) Large and showy
D) Small and fragrant
  • 29. What is a characteristic of container-grown jujube trees?
A) Are less susceptible to pests
B) Bear fruit earlier
C) Require more frequent watering
D) Grow larger than in-ground trees
  • 30. What is the best time to prune jujube trees?
A) Late winter or early spring
B) Late autumn
C) Any time of year
D) Mid-summer
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