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Question

Match the following plant diseases with their symptoms.
Column AColumn B(a) Fungal disease(i) Roots have rotted and emit a foul smell.(b) Tikka disesase(ii) Discolouration of parts of the plant.(c) Viral disease(iii) Leaves and stems have spots and scars.
  1. a - iii, b - i, c - ii
  2. a - i, b - iii, c - ii
  3. a - ii, b - i, c - iii
  4. a - ii, b - iii, c - i


Solution

The correct option is A a - iii, b - i, c - ii
Diseases in the plants are mainly caused by bacteria, fungi and viruses.
(a) Fungal diseases - They leave a white, black, yellow, brown spots or a fluffy or powdery coating on leaves. Ring worm is a fungal infection which produces red and itchy patches in outer skin of humans.
(b) Tikka disease - It mainly effects the roots and leaves of the plant leaving spots on them. It leads to the rottening of the roots which results in release of a foul smell.
(c) Viral Diseases -They primarily lead to the discolouration of the leaves of plants.

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