In plants, micronutrients are those which are needed less than or equal to the following amount per gram of dry matter is

0.1

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0.1

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0.1 μ

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1 μ

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Solution

The correct option is A $0.1$ mg
Micronutrients are those mineral elements which are required in small quantities by plant i.e. less than or equal to 0.1 mg/gm of dry weight of plant matter. They are mostly involved in functioning of enzymes, as cofactors or metal activators.
Ex- Zn, Fe, Mo, B , Cu, Ni, Co, V, Cl, Mn
Thus the correct option is A.

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Similar questions

0.1 m g / g m

Assertion (A): Macronutrients are generally present in plant tissues in large amounts, in excess of 10 m mole $k g^{- 1}$ of dry matter.

Reason (R): Micronutrients are needed in very small amounts, less than 10 m mole $k g^{- 1}$ of dry matter.

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