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Percentage of photosyntetically active r...

Percentage of photosyntetically active radiation (PAR) that is captured by plants in synthesis of organic matter is

A

50-70%

B

30-40%

C

80-100%

D

2-10%

Text Solution

Verified by Experts

The correct Answer is:
D
About 1-5 % of incident solar energy or 2-10 % of PAR is captured by the photosynthetic organisms for the synthesis of organic matter (Gross primary productivity). Roughly 20 % of it is consumed in respiration so that net capture of energy (net primary productivity) is 0.8-4 % of incident radiation or 1.6-8% of PAR.
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