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Mineral Nutrition
Deficiency Symptoms of Elements
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- of Mineral Nutrition
- 1.59%
Concepts tested
- Manganese deficiency in oats
All Questions
2003 AIPMT 1 question
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Gray spots of oat are caused by deficiency of : -Grey speck (gray spot) disease of oats is a physiological disorder caused by manganese deficiency. Grey-brown spots and streaks appear on the leaves.
Manganese activates many enzymes of photosynthesis, respiration and nitrogen metabolism, and is needed for the splitting of water in photosynthesis.
Other examples: marsh spot of peas is also due to Mn deficiency; little leaf is due to Zn deficiency; reclamation disease is due to Cu deficiency; and chlorosis of young leaves is due to Fe deficiency.
So gray spots of oat are caused by deficiency of Mn.