Ncert Exercises & Solutions

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?

1. Sulphur

2. Magnesium

3. Nitrogen

4. Potassium

The sulphur is needed by young leaves, stem and root tips. If it is not available, these parts would show the deficiency symptoms which include

(i) reduced growth
(ii) extensive root growth
(iii) hard and woody stem
(iv) chlorosis of young leaves.

The immobile elements are transported in plant upto the tip level, so’ their deficiency appears first at the tips of growing apices of roots and shoot.

Page 198, XI NCERT

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