A gardener observed purple appearance on the stems, petioles and underside of leaves of few plants in his garden. The deficiency of which of the following minerals causes such abnormalities in the plants?
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Potassium
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Iron
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Boron
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Nitrogen
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Manganese
D
Correct answer
Explanation
Nitrogen is an essential component of all proteins.Nitrogen deficiency is probably the most common problem in rice and tends to be of large economic significance. Nitrogen deficient plants shows a remarkable purple appearance on the stems, petioles and underside of leaves from an accumulation of anthocyanin pigments.