How to Identify and Classify Sea Buckthorns - Quiz
  • 1. What is the primary characteristic that identifies sea buckthorn?
A) Thick, waxy leaves
B) Smooth, gray bark
C) Thorny branches and silver-green leaves
D) Large, colorful flowers
  • 2. Sea buckthorn fruits are typically what color?
A) Green
B) Red
C) Blue or purple
D) Orange or yellow
  • 3. The leaf shape of sea buckthorn is best described as:
A) Lanceolate
B) Oval
C) Heart-shaped
D) Round
  • 4. Sea buckthorn is known for being a good source of which vitamin?
A) Vitamin D
B) Vitamin K
C) Vitamin B12
D) Vitamin C
  • 5. Sea buckthorn typically thrives in what type of environment?
A) Sandy or gravelly soil
B) Swamps
C) Dense forests
D) Clay-rich soil
  • 6. What is the typical growth habit of sea buckthorn?
A) Ground cover
B) Large, towering tree
C) Vine
D) Shrub or small tree
  • 7. Which part of the sea buckthorn plant is often used for medicinal purposes?
A) Roots
B) Bark
C) Fruits and oil
D) Leaves only
  • 8. Sea buckthorn is native to which regions?
A) North America and Australia
B) Antarctica
C) Europe and Asia
D) South America and Africa
  • 9. What type of plant is sea buckthorn regarding its sex?
A) Dioecious
B) Asexual
C) Hermaphroditic
D) Monoecious
  • 10. Why is it important to have both male and female sea buckthorn plants?
A) For disease resistance
B) For root development
C) For leaf growth
D) For fruit production
  • 11. The small dots on the leaves of sea buckthorn are called:
A) Scales or hairs
B) Stomata
C) Pores
D) Veins
  • 12. What is the role of nitrogen-fixing bacteria in sea buckthorn's root nodules?
A) Transport nutrients to the leaves
B) Protect the roots from pests
C) Convert nitrogen from the air into a usable form for the plant
D) Store water for the plant
  • 13. The fruit of sea buckthorn is classified as what type of fruit?
A) Drupe
B) Berry
C) Pome
D) Capsule
  • 14. What is the scientific name of Sea Buckthorn?
A) Hippophae rhamnoides
B) Sorbus aucuparia
C) Rubus idaeus
D) Vaccinium myrtillus
  • 15. How are sea buckthorn plants typically propagated?
A) Layering only
B) Budding only
C) Grafting only
D) Cuttings or seeds
  • 16. What is a common use of sea buckthorn oil?
A) Industrial lubricant
B) Food preservative
C) Skin care products
D) Fuel additive
  • 17. Which of these is a characteristic of sea buckthorn thorns?
A) Soft and pliable
B) Absent on mature plants
C) Rounded and blunt
D) Sharp and rigid
  • 18. What is the meaning of 'Hippophae' in the scientific name Hippophae rhamnoides?
A) Orange fruit
B) Silver leaf
C) Thorny bush
D) Shining horse
  • 19. Which environmental condition does sea buckthorn tolerate well?
A) Shade
B) Waterlogging
C) Salinity
D) High humidity
  • 20. What is a common method for harvesting sea buckthorn berries?
A) Cutting branches and freezing them
B) Hand picking individual berries
C) Shaking the tree
D) Using a vacuum device
  • 21. Sea buckthorn is sometimes used in land reclamation because it:
A) Attracts pests
B) Depletes nutrients
C) Requires fertile soil
D) Stabilizes soil
  • 22. What is a potential drawback of planting sea buckthorn?
A) Slow growth rate
B) Invasive tendencies
C) High water requirements
D) Susceptibility to fungal diseases
  • 23. Which feature helps distinguish different cultivars of sea buckthorn?
A) Bark color
B) Fruit size and shape
C) Leaf size
D) Thorn length
  • 24. What is the approximate lifespan of a sea buckthorn plant?
A) 60-70 years
B) 30-40 years
C) 100+ years
D) 10-20 years
  • 25. The silver appearance of sea buckthorn leaves is due to:
A) Presence of fungal spores
B) Chlorophyll deficiency
C) A waxy coating
D) Tiny scales reflecting light
  • 26. Sea buckthorn berries are often used in which type of product?
A) Fertilizers
B) Textile dyes
C) Building materials
D) Juices and jams
  • 27. What type of root system does sea buckthorn have?
A) Extensive and deep
B) Taproot only
C) Fibrous and weak
D) Shallow and compact
  • 28. What is the benefit of sea buckthorn's ability to fix nitrogen?
A) Increases pest resistance
B) Reduces water consumption
C) Improves soil fertility
D) Enhances fruit flavor
  • 29. How does sea buckthorn contribute to biodiversity?
A) Suppresses other plant growth
B) Provides habitat for wildlife
C) Repels insects
D) Acidifies the soil
  • 30. Which geographical feature is often associated with sea buckthorn growth?
A) Coastal areas
B) Tropical rainforests
C) High mountains
D) Deserts
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