The range of photosynthetically active radiation lies between 400 - 700nm, maximum photosynthesis occurs in the blue-violet and red region of the light spectrum and minimum photosy... The range of photosynthetically active radiation lies between 400 - 700nm, maximum photosynthesis occurs in the blue-violet and red region of the light spectrum and minimum photosynthesis occurs in the green wavelength.
Understand the Problem
The question discusses the range of photosynthetically active radiation (PAR) and how different wavelengths of light affect photosynthesis rates, indicating that maximum efficiency occurs in blue-violet and red light while green light is least effective.
Answer
Photosynthetically active radiation (PAR) ranges from 400 to 700 nm, with maximum photosynthesis in red and blue light, and minimum in green light.
The range of photosynthetically active radiation is from 400 to 700 nm, with maximum photosynthesis occurring in the red and blue parts of the spectrum and minimum in the green.
Answer for screen readers
The range of photosynthetically active radiation is from 400 to 700 nm, with maximum photosynthesis occurring in the red and blue parts of the spectrum and minimum in the green.
More Information
Photosynthetically active radiation is crucial for plant growth as it represents the spectrum of light that plants can actually use for photosynthesis. Red and blue light are most effective because they are strongly absorbed by chlorophyll pigments.
Tips
A common mistake is thinking that green light is most effective because plants often appear green due to reflection, not absorption.
Sources
- Photosynthetically active radiation - Wikipedia - en.wikipedia.org
- Photosynthetic Physiology of Blue, Green, and Red Light - NCBI - ncbi.nlm.nih.gov
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