Transpiration

• Transpiration is the loss of water vapour from the stomata by evaporation
• Factors Affecting Transpiration:

  • Light - positive correlation, stomata opens, more surface area for evaporation
  • Temperature - positive correlation, increase in temp = increase in kinetic energy = more evaporation
  • Wind - positive correlation, increase in wind = blow away humid air = more evaporation
  • Humidity - negative correlation, increase in water vapour = increase in water potential = less evaporation