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: ADVERTISEMENTS: Each pigment has its own absorption spectrum. The chlorophylls absorb heavily in the blue and red region of the spectrum and β-carotene mostly in the blue region. Most of the light is being reflected in the green region, giving a leaf the green colour. The greater absorption of light is found in thicker leaves with, a lower percentage of transmitted light as compared to thinner leaves. 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.