Limiting factors in photosynthesis

Photosynthesis

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Optimum conditions

HIGH LIGHT INTENSITY

The higher the light intensity the more energy provided

TEMPERATURE AT 25C

Photosynthesis involves enzymes. If the temperature falls below 10C then enzymes may become inactive; but it the temperature is greater than 45C enzymes may become denatured.

At high temperatures stoma close to prevent water loss which means that less carbon dioxide enters the leaf. This slows photosynthesis

CARBON DIOXIDE AT 0.4%

Increasing the level of carbon dioxide from the 0.04% atmospheric level increases the rate of photosynthesis. However if it becomes any higher then the stoma close.

 

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Growers use this information to increase plant gro

  • They use these factors to create an environment where plants received the right amount of everything. 
  • This increases growth and increases yield.
  • Light, temperature and carbon dioxide are all controlled
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