Question:

Statements:
A. Magnesium deficiency symptom shows the first appearance of chlorosis mainly between veins (which remain green).
B. Iron deficiency causes interveinal chlorosis which first appears in older leaves with distinct green veins.
C. Manganese deficiency causes brownish black spots in pea and grey speck of oat.
D. Boron deficiency shows brownish or reddish young leaves and growing points of shoot and roots die.
Choose the correct answer from the options given below:

Show Hint

Mg: interveinal chlorosis, veins green.
Fe: interveinal chlorosis on young leaves.
Mn: brown spots, grey speck.
B: death of growing points.
  • A, B and C only
  • A, B and D only
  • A, C and D only
  • B, C and D only
Show Solution
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The Correct Option is C

Solution and Explanation

Step 1: Understanding the Concept:
Different nutrient deficiencies have specific symptoms.
We need to identify the correct statements.

Step 2: Key Formula or Approach:

No specific formula.
Need to know nutrient deficiency symptoms.

Step 3: Detailed Explanation:

A. Magnesium deficiency: chlorosis between veins (interveinal), veins remain green.
This is correct.
B. Iron deficiency: interveinal chlorosis appears on young leaves, not older leaves.
So, B is incorrect.
C. Manganese deficiency: brownish black spots in pea and grey speck of oat.
This is correct.
D. Boron deficiency: brownish/reddish young leaves, shoot and root death.
This is correct.
Thus, A, C, and D are correct.

Step 4: Final Answer:

The correct statements are A, C, and D.
Hence, the correct option is (C).
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