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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?

1. Essential element concentration below which plant growth is retarded.
2. Essential element concentration below which plant growth becomes stunted.
3. Essential element concentration below which plant remains in the vegetative phase.
4. None of the above.

A

Essential element concentration below which plant remains in the vegetative phase

B

Essential element concentration below which plant growth becomes stunted

C

Essential element concentration below which plant growth is retarded

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
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ICSE-MINERAL NUTRITION -TEST YOUR PROGRESS (OBJECTIVE TYPE QUESTIONS)
  1. Plants that have symbiotic relations with nitrogen-fixing bacteria pro...

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  2. Root nodules are formed from the cells of

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  3. Which of the following plants enrich the soil with nitrogen?

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  4. In plants a common symptom caused by deficiencies of Ca, K, Mg and P i...

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  5. Chlorosis is:

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  6. Phosphorus is a structural element in

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  7. The fertility of soil is reduced by:

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  8. Plants like clover and beans, that have nitrogen-fixing bacteria in th...

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  9. Which of the following asymbiotic free-living cyanobacteria is concern...

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  10. Carbon becomes available to crop plants in the form of:

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  11. Mottle leaf in citrus plants is due to the deficiency of

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  12. The deficiency of which of the following elements may cause leaf tip b...

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  13. Which of the following is not an inorganic nutrient for plants?

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  14. Which of the following is not a mineral ion?

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  15. Mg and Fe are needed for plants in the

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  16. The mineral element essential for nitrogen metabolism is:

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  17. Deficiency of which element causes chlorosis?

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  18. By what method are lons absorbed by plants?

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  19. Which of the following alga fixes atmospheric nitrogen in soil

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

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