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