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How to Cultivate Watermelons - Quiz
Contributed by: Webster
  • 1. What soil pH is ideal for watermelons?
A) 4.5-5.5
B) 6.0-6.8
C) 7.0-8.0
D) 8.5-9.5
  • 2. Watermelons are members of what plant family?
A) Solanaceae
B) Cucurbitaceae
C) Brassicaceae
D) Fabaceae
  • 3. What is the ideal soil temperature for watermelon seed germination?
A) 60-70°F
B) 50-60°F
C) 70-90°F
D) 90-100°F
  • 4. Which of these is NOT a common watermelon disease?
A) Gummy Stem Blight
B) Fusarium Wilt
C) Anthracnose
D) Late Blight
  • 5. How much space should be given between watermelon plants in a row?
A) 6-8 inches
B) 1 foot
C) 2-3 feet
D) 4-5 feet
  • 6. What type of pollination do watermelons require?
A) Self-pollination
B) Wind pollination
C) Insect pollination
D) Water pollination
  • 7. What is a good way to improve watermelon flavor?
A) Over-fertilize with nitrogen
B) Plant in shady areas
C) Maintain consistent watering
D) Prune vines heavily
  • 8. What is a common indicator that a watermelon is ripe?
A) The watermelon is bright green.
B) The tendril closest to the fruit is brown and dry.
C) The watermelon sounds hollow when tapped.
D) The watermelon is very hard.
  • 9. What fertilizer ratio is generally recommended for watermelons during fruit development?
A) High nitrogen, low phosphorus and potassium
B) No fertilizer is needed
C) Balanced nitrogen, phosphorus and potassium
D) Low nitrogen, high phosphorus and potassium
  • 10. What is 'hardening off'?
A) Gradually acclimating seedlings to outdoor conditions.
B) Pruning watermelon plants aggressively.
C) Allowing watermelons to rot on the vine.
D) Applying excessive amounts of fertilizer.
  • 11. Which of the following is a common watermelon pest?
A) Aphids
B) Ladybugs
C) Praying Mantis
D) Earthworms
  • 12. What is the benefit of using black plastic mulch when growing watermelons?
A) Cools the soil and promotes weed growth
B) Attracts pollinators
C) Provides extra nutrients to the plants
D) Warms the soil and suppresses weeds
  • 13. How often should watermelons be watered?
A) Regularly, especially during fruit development
B) Never water them
C) Once a week
D) Only when the leaves start to wilt
  • 14. What is 'sunscald'?
A) A type of fertilizer burn
B) Damage to the fruit caused by excessive sun exposure
C) A fungal disease that affects watermelon leaves
D) A genetic mutation that causes striped watermelons
  • 15. Which of these watermelon varieties is seedless?
A) Diploid
B) Haploid
C) Triploid
D) Tetraploid
  • 16. What is the purpose of pinching off the lateral shoots of a watermelon plant?
A) To encourage leaf growth
B) To control pests
C) To prevent the plant from flowering
D) To direct energy to the main vine and fruit development
  • 17. How deep should watermelon seeds be planted?
A) 3 inches
B) 1 inch
C) 1/4 inch
D) 2 inches
  • 18. Why is crop rotation important for watermelon cultivation?
A) To attract pollinators
B) To increase the size of the watermelons
C) To control weeds
D) To prevent soilborne diseases and nutrient depletion
  • 19. What is a good companion plant for watermelons?
A) Cabbage
B) Marigolds
C) Tomatoes
D) Broccoli
  • 20. How long does it typically take for watermelons to mature from planting?
A) 100-120 days
B) 70-90 days
C) 30-45 days
D) 50-60 days
  • 21. What is a common sign of overwatering watermelons?
A) Stunted growth
B) Fruit cracking
C) Yellowing leaves
D) Leaf curling
  • 22. Which type of soil is best for growing watermelons?
A) Clay
B) Silt
C) Peat
D) Sandy loam
  • 23. What tool is best for harvesting watermelons?
A) Trowel
B) Sharp knife or pruning shears
C) Hoe
D) Shovel
  • 24. What is the benefit of planting watermelons on mounds or hills?
A) Easier harvesting
B) Increased sun exposure
C) Improved drainage and soil warming
D) Reduced weed growth
  • 25. How can you protect watermelon seedlings from cutworms?
A) Water the seedlings excessively
B) Apply fertilizer directly to the stems
C) Use collars around the stems
D) Remove all leaves from the seedlings
  • 26. What is the best time of day to water watermelons?
A) Early morning
B) Late afternoon
C) Evening
D) Midday
  • 27. Which mineral deficiency can cause blossom-end rot in watermelons?
A) Calcium
B) Potassium
C) Nitrogen
D) Phosphorus
  • 28. What does 'days to maturity' on a seed packet refer to?
A) The shelf life of the seeds
B) The estimated time from planting to harvest
C) The maximum size of the watermelon
D) The number of days the seeds need to germinate
  • 29. What is the primary function of potassium in watermelon growth?
A) Root development
B) Fruit development and sugar production
C) Leaf growth
D) Disease resistance
  • 30. Why is it important to avoid overhead watering of watermelons?
A) It can damage the delicate vines
B) It can promote fungal diseases
C) It can wash away the fertilizer
D) It can attract pests
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