Title: 10 Major Factors Affecting Photosynthesis
Headings: 10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:

Content: Light Intensity: There may be a direct relationship between the rate of photosynthesis and the intensity of light, provided that no other factor is limiting. For example, on bright sunny days the carbon dioxide concentration of the atmosphere is usually the limiting factor, not light intensity. However, on cloudy days light may be the limiting factor. Heinicke and Childers (1937) have found that the rate of photosynthesis steadily increased with light intensity up to about full sunlight even through saturation intensity for a single exposed leaf would be sufficiently lower. The need for higher light intensities for maximum photosynthesis of an entire tree is due to partial illumination of the inner leaves. ADVERTISEMENTS: Both quality and intensity of light influence photosynthesis. Light between wavelength of 400 nm and 700 nm is most effective, for photosynthesis. This light is called photosynthetically active radiation (PAR).