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Deficiency of Nutrients

Which one of ...

Question

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

A

None of the above.

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B

Essential element concentration below which the plant remains in the vegetative phase.

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C

Essential element concentration below which plant growth becomes stunted.

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D

Essential element concentration below which plant growth is retarded

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Solution

The correct option is D
Essential element concentration below which plant growth is retarded

Critical concentration is the concentration of an essential element below which plant growth is retarded. The element is called deficient when present below the critical concentration.

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

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 of the following is an essential element for plant growth?

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