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?

Options

A. Sulphur
B. Magnesium
C. Nitrogen
D. Potassium

Answer

A

Explanation

Deficiency symptoms appear first in young leaves and young tissues for elements which are relatively immobile inside the plant e.g. Ca and S are a part of a structural component of the cell and hence are not easily released. The symptoms of copper deficiency appear first in old leaves and tissues for those elements which are mobilized for senescing regions for supply to young tissues e.g. NK, and Mg