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Which one of the following statements ca...

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

A

Essential element concentration below which plant growth is retarded

B

essential element concentration below which plant growth becomes enhanced

C

Essential element concentration below which plant remains in the vegetative phase

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
A
The limited concentratio of essential element below which plant growth is retarted/stunted is termed as critical concentration.
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NCERT FINGERTIPS-MINERAL NUTRITION-Mineral Nutrition
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  2. Which one of the following roles is not characteristic of an essential...

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  3. Which one of the following statements can best explain the term critic...

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  4. Deficiency symptoms of an element tend to appear first in young leaves...

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  5. Which one of the following symptoms is not due to manganese toxicity i...

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  6. Reaction carried out by N(2) fixing microbes include 2NH(3)+3O(2)to2...

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  7. With regard to the bilogical nitrogen fixation by Rhizobium in associa...

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  8. Match the element with its associated functions/roles and choose the c...

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  9. Plants can be grown in (Tick the incorrect option)

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  10. Assertion: The technique of growing plants in a nutrient solution is k...

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  11. Assertion: Some essential elements are called structural element of ce...

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  12. Assertion: Plants absorb calcium from soil in the form of calcium ions...

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  13. Assertion: Sulphur is the main constituent of several coenzymes, vitam...

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  14. Assertion: Plants obtain molybdenum in the form of molybdate ions (MoO...

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  15. Assertion: Deficiency symptoms appear when the availability of the ess...

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  16. Assertion: Necrosis occurs due to deficiency of Ca, Mg, Cu and K. Re...

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  17. Assertion: The prominent symptom of manganese toxicity is the appearan...

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  18. Assertion: The movement of ions into or out of the cells is usually ca...

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  19. Assertion: As per carbonic acid exchange theory of mineral salt absorp...

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  20. Assertion: Ammonia is converted into nitrate by soil bacteria like Nit...

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