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III. LIMITING FACTORS IN PLANT GROWTH

III. LIMITING FACTORS IN PLANT GROWTH. Light Temperature Carbon Dioxide. Photosynthesis. 6CO 2 + 12H 2 O + Light energy + Heat (temperature) C 6 H 12 O 6 + 6 O 2 + 6 H 2 O. Fig 2. Fig 1. Fig 3. Photosynthesis Temperature, CO 2 , Light Intensity. Fig 4. Fig 5.

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III. LIMITING FACTORS IN PLANT GROWTH

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  1. III. LIMITING FACTORS IN PLANT GROWTH Light Temperature Carbon Dioxide

  2. Photosynthesis 6CO2 + 12H2O + Light energy + Heat (temperature) C6H12O6 + 6 O2 + 6 H2O

  3. Fig 2. Fig 1. Fig 3. PhotosynthesisTemperature, CO2, Light Intensity

  4. Fig 4. Fig 5. CarbohydrateLight, Temperature, CO2

  5. Respiration C6H12O6 + O2 CO2 + H2O + ATP

  6. Fig 6. Fig 7. Fig 8. Respiration & Photosynthesis

  7. Compensation Point Fig 8. Fig 9. Fig 10. Fig 11.

  8. Photosynthesis Carbohydrate produced Temperature & Carbon dioxide constant Light intensity increase

  9. Photosynthesis Carbohydrate produced Temperature & Light intensity constant Carbon dioxide increase

  10. Photosynthesis Carbohydrate produced Temperature increase Light intensity & Carbon dioxide constant

  11. Photosynthesis High light intensity Medium light intensity Carbohydrate produced Low light intensity Temperature constant Carbon dioxide increase

  12. Photosynthesis Temp 85; CO2 1300 ppm Temp 70; CO2 1300 ppm Carbohydrate produced Temp 70 & 85; CO2 340 ppm A B C Light intensity increase

  13. Carbohydrate metabolized Temperature increase Respiration

  14. Photosynthesis Constant temperature Carbohydrate produced or metabolized Respiration Light saturation point Light intentsity Light compenation point

  15. Compensation point Photosynthesis Apparent photosynthesis Carbohydrate metabolized or produced Respiration Temperature increase

  16. Compensation points Photosynthesis Top leaf Middle leaf Carbohydrate metabolized or produced Bottom leaf Respiration Temperature increase

  17. Compensation points Photosynthesis High light Low light Carbohydrate metabolized or produced Respiration Temperature increase

  18. Compensation points Photosynthesis High CO2 Carbohydrate metabolized or produced Low CO2 Respiration Temperature increase

  19. Carbohydrate metabolized or produced Temperature increase

  20. Photosynthesis Temp 85; CO2 1300 ppm C Temp 70; CO2 1300 ppm B Carbohydrate produced Temp 70 & 85; CO2 340 ppm A Light intensity increase

  21. III. LIMITING FACTORS IN PLANT GROWTH A. Compensation Point 1. Low light vs. high light 2. Low CO2 vs. high CO2 3. Sunny day vs. cloudy day 4. Summer vs. winter B. Light Intensity vs. Temperature C. Light vs. Carbon Dioxide D. Light vs. Temperature vs. • Carbon Dioxide

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