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Classification of Essential Elements

Deficiency sy...

Question

Deficiency symptom of an element 1st appears in Young leaves. It shows that the element is certainly immobile. Which of the following element show such property

A

sulphate

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B

magnesium

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C

nitrogen

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D

potassium

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Solution

The correct option is A sulphate
Sulphur is a macroelement and its deficiency in plants shows mainly in young tissues and have several symptoms -chlorosis in young leaves and reduced growth, the formation of the hard and woody stem.
So the correct option is 'Sulphur'

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Q. Deficiency symptoms of an element tend to appear first in young leaves. It indicates that the element is relatively immobile. Which one of the following elemental deficiency would show such symptoms?

Q. Deficiency symptoms tend to appear in young leaves when the elements are .

Q. Select the correct option-
Assertion: When there is a deficiency of relatively mobile elements, the deficiency symptoms appear first in young tissues.
Reason: Relatively mobile elements like nitrogen, phosphorus etc are transported from young tissues to old senescing tissues

Q. If deficiency symptoms of element 'A' appear first in older tissues and of element 'B' appear first in younger tissues, then choose the correct one from the following regarding these elements.

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