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Name at least five different deficiency symptoms in plants. Describe them and correlate them with concerned mineral deficiency.
Answer
1. Chlorosis : It is the yellowing of leaves due to the loss of chlorophyll. It is due to the deficiency of Mn, N, K, Mg, S, Fe, Zn, and Mo.

2. Die back: It is the withering of stem from apex downward. It is due to the deficiency of copper.

3. Necrosis : It is the death of the tissues.  The leaf tips develop dead areas or necrotic areas. It may be also due to Ca, Mg, Ni, Cu and K.

4. Whiptail disease : It occurs in cauliflower. It is due to the deficiency of Mo.

5. Little leaf disease: It is due to the deficiency of Zn. It also causes rosette of apple and peaches.