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