Making the most of photosynthesis

• What can gardeners do to increase the rate of photosynthesis?

  Remove limiting factors
• Where is the removal of limiting factors to increase photosynthesis usually done?

  In a greenhouse
• What are the benefits of using greenhouses for photosynthesis?

  • Trap heat from the sun
  • Maintain warm temperature
• What can be done if a greenhouse gets too hot?

  It can be ventilated
• What may be used in very cold conditions to provide warmth in a greenhouse?

  A heater
• What factors must be considered when using artificial light for photosynthesis?

  • Costs of artificial lighting
  • Higher maximal yield must exceed costs
• How can higher CO₂ concentration be provided in a greenhouse?

  Using a paraffin heater that releases CO₂ and heat
• What is the purpose of artificial light in a greenhouse?

  To extend the length of time plants can photosynthesize
• What are limiting factors in photosynthesis?

  Factors that restrict the rate of photosynthesis
• Why is it important to maintain a warm temperature in a greenhouse?

  To optimize the rate of photosynthesis
• If a gardener wants to increase CO₂ levels, what equipment should they consider using?

  A paraffin heater
• What is the relationship between costs and maximal yield in greenhouse gardening?

  Maximal yield needs to be greater than the costs