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Toxicity of Micronutrients

Appearance of...

Question

Appearance of brown spots surrounded by chlorotic veins is a toxic symptom caused due to

A

Mo.

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B

Zn.

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C

Mg.

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D

Mn

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Solution

The correct option is D Mn
Marsh spot disease is Characterised by brown spots surrounded by Chlorotic veins. it is caused by the toxicity of Manganese.

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Q. Appearance of brown spots surrounded by chlorotic veins is a toxicity symptom of

Q. Appearance of brown spots surrounded by chlorotic veins is a prominent toxicity symptom of

Q. Assertion :The prominent symptom of manganese toxicity is the apperance of brown spots surrounded by chlorotic veins. Reason: Excess of mangnese may induce deficiencies of iron, magnesium and calcium.

Q. Which of the following statements are correct?
(i) The deficiency of any element can cause multiple symptoms
(ii) Same symptoms may be caused by the deficiency of one or several different elements
(iii) The concentration of the essential element below which plant growth is retarded is termed as critical concentration
(iv) Chlorosis is the loss of chlorophyll due to deficiency of N, K, Mg, Fe, S, Mn, Zn, Mo.
(v) Different plants respond differently to the deficiency of the same element.

Q. The first symptom of chlorosis in Mg deficiency is:

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