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Question : Define Blackman's law of limiting factors and identify any two important factors which influence the rate of photosynthesis in plants.

Answer»

Solution :Blackman.s LAW of limiting factors. states that when a PROCESS is conditioned as to its rapidity by a number of separate factors, the rate of process is limited by the pace of the slowest factor. It was proposed by F E Blackman (1905).
Light, carbon DIOXIDE are TWO of the important factors which influence the rate of photosynthesis. If light intesity is increased, rate of photosynthesis INCREASES and other factor `CO_2` become limiting and if `CO_2` concentration increases, rate of photosynthesis will increase and the light become a limiting factor.


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