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