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Critical Concentration

The concentra...

Question

The concentration of the essential element below which plant growth is retarded is termed as __ concentration.

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Solution

Whenever the supply of an essential element becomes limited plant growth is retarded. The concentration below which growth is retarded is termed as critical concentration.

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Q. Minimum concentration of an essential element below which plant growth is retarded, is termed as _________________.

Q. Assertion :Deficiency symptoms appear when the availability of the essential nutrients falls below the critical concentration Reason: Critical concentration is that limited concentration of the essential element below which growth of the plant is reduced.

Q. Which of the following statements are correct?
(i) The deficiency of any element can cause multiple symptoms
(ii) Same symptoms may be caused by the deficiency of one or several different elements
(iii) The concentration of the essential element below which plant growth is retarded is termed as critical concentration
(iv) Chlorosis is the loss of chlorophyll due to deficiency of N, K, Mg, Fe, S, Mn, Zn, Mo.
(v) Different plants respond differently to the deficiency of the same element.

Which one of the following statements can best explain the term critical concentration of an essential element?

Q. A trace element essential for plant growth and radioactive isotope which is used in cancer therapy is known as

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