How to Identify and Classify Yardlong Beans
  • 1. What family do yardlong beans belong to?
A) Cucurbitaceae
B) Solanaceae
C) Brassicaceae
D) Fabaceae
  • 2. What is the scientific name of yardlong beans?
A) Glycine max
B) Phaseolus vulgaris
C) Pisum sativum
D) Vigna unguiculata subsp. sesquipedalis
  • 3. Yardlong beans are most closely related to what other common bean?
A) Kidney beans
B) Cowpeas
C) Lima beans
D) Green beans
  • 4. What is the defining characteristic of yardlong beans?
A) Spotted pods
B) Exceptionally long pods
C) Purple foliage
D) Round, small pods
  • 5. How long are yardlong bean pods typically?
A) 5-10 cm
B) 1-2 m
C) 10-20 cm
D) 30-90 cm
  • 6. What is the typical color of yardlong bean flowers?
A) Bright red
B) White
C) Pale purple or lavender
D) Yellow
  • 7. What is the typical color of yardlong bean seeds?
A) Always white
B) Always purple
C) Variable; often brown, red, or black
D) Always green
  • 8. Are yardlong beans a type of legume?
A) No
B) Only when dried
C) Yes
D) Sometimes
  • 9. What type of growth habit do yardlong beans exhibit?
A) Bush
B) Tree
C) Ground cover
D) Climbing vine
  • 10. What is the best way to support yardlong bean plants?
A) Trellis or stakes
B) Planting them in a pot
C) Pruning regularly
D) Letting them grow on the ground
  • 11. At what stage are yardlong beans typically harvested?
A) When the flowers are in full bloom
B) When the pods are dry and brittle
C) When the plant is mature
D) When the pods are long and tender
  • 12. What is a common culinary use for yardlong beans?
A) Stir-fries
B) Dyeing fabrics
C) Animal feed only
D) Making jam
  • 13. Which climate is most suitable for growing yardlong beans?
A) High altitude
B) Warm and humid
C) Temperate with mild winters
D) Cold and dry
  • 14. What soil type is ideal for yardlong bean cultivation?
A) Well-drained, fertile soil
B) Acidic soil
C) Clay-rich soil
D) Sandy, infertile soil
  • 15. What is a common pest that affects yardlong beans?
A) Ladybugs
B) Bees
C) Earthworms
D) Aphids
  • 16. What is a common disease that affects yardlong beans?
A) Powdery mildew
B) Root rot
C) Tomato blight
D) Leaf curl
  • 17. How are yardlong beans typically propagated?
A) Seeds
B) Grafting
C) Cuttings
D) Layering
  • 18. Yardlong beans are a good source of which nutrient?
A) Calcium
B) Iron
C) Vitamin C
D) Vitamin D
  • 19. How does the taste of yardlong beans compare to other common beans?
A) Bitter and unpleasant
B) Slightly different, sometimes described as more earthy
C) Exactly the same as green beans
D) Sweeter than other beans
  • 20. In which part of the world are yardlong beans most commonly cultivated?
A) North America
B) Southeast Asia
C) Europe
D) South America
  • 21. What distinguishes yardlong beans from asparagus beans?
A) Yardlong beans require more water.
B) Asparagus beans are always purple.
C) They are the same thing.
D) Asparagus beans are always bush beans.
  • 22. What is a good companion plant for yardlong beans?
A) Corn
B) Fennel
C) Onions
D) Rosemary
  • 23. What part of the yardlong bean plant is typically eaten?
A) The leaves
B) The roots
C) The mature seeds only
D) The immature pods
  • 24. Why are yardlong beans often called 'asparagus beans'?
A) Because they are always grown near asparagus
B) Because they look exactly like asparagus plants
C) Because asparagus is used as fertilizer when growing them
D) Because of their similar taste and texture when cooked
  • 25. How does the cooking time of yardlong beans compare to green beans?
A) Much shorter
B) Similar, but may require slightly longer
C) They don't need to be cooked at all
D) Significantly longer
  • 26. What is a key factor in preventing yardlong bean pods from becoming tough?
A) Fertilizing them heavily
B) Watering them excessively
C) Harvesting them while they are still young and tender
D) Exposing them to full sun
  • 27. Are yardlong beans frost-tolerant?
A) Only with protection
B) Yes, very frost-tolerant
C) No
D) Moderately frost-tolerant
  • 28. What is the average seed germination rate for yardlong beans, under optimal conditions?
A) 10-20%
B) 40-50%
C) Almost 100%
D) 70-90%
  • 29. Compared to bush beans, how much space do yardlong beans typically need?
A) They can be grown in small containers
B) About the same amount of space
C) More space due to their vining habit
D) Less space as they grow vertically
  • 30. Which of the following is NOT a common name for yardlong beans?
A) Broad Bean
B) Chinese Long Bean
C) Snake Bean
D) Asparagus Bean
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