Question

Match List-I with List-II
\[\begin{array}{|l|l|} \hline \textbf{List-I} & \textbf{List-II} \\ \textbf{Physiological disorders} & \textbf{Deficiency / Toxicity} \\ \hline \text{(A). Blossom end rot} & \text{(I). B deficiency} \\ \hline \text{(B). Fruit cracking} & \text{(II). Ca deficiency} \\ \hline \text{(C). Interveinal chlorosis} & \text{(III). Cl toxicity} \\ \hline \text{(D). Leaf scorching} & \text{(IV). Mg deficiency} \\ \hline \end{array}\]
Choose the correct answer from the options given below:

• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)

Hint:

Create a chart of major nutrients (Macro & Micro) and the classic deficiency/toxicity symptom for each. For example: N-general chlorosis, Ca-death of growing points/BER, B-fruit cracking, Mg-interveinal chlorosis, Cl-leaf scorching.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The question requires matching common physiological disorders in plants with their corresponding nutritional cause (deficiency or toxicity).

Step 2: Detailed Explanation:
Let's match each disorder to its cause:
\[\begin{array}{rl} \bullet & \text{(A) Blossom end rot: This is a classic disorder in tomato, watermelon, and peppers, appearing as a dark, sunken lesion at the blossom end of the fruit. It is caused by a localized (II) Ca deficiency (Calcium deficiency) in the developing fruit. } \\ \bullet & \text{(B) Fruit cracking: While often related to irregular irrigation, nutritional imbalances are also a key factor. Deficiency of (I) B (Boron) is a major cause of fruit cracking in many fruits like pomegranate and tomato, as boron is essential for cell wall elasticity. } \\ \bullet & \text{(C) Interveinal chlorosis: This symptom, where the tissue between the leaf veins turns yellow while the veins remain green, is a hallmark of (IV) Mg deficiency (Magnesium deficiency), especially in older leaves, as Mg is the central atom in the chlorophyll molecule. } \\ \bullet & \text{(D) Leaf scorching: This appears as a burning or drying of the leaf margins. It can be caused by various stresses, including the toxicity of certain ions. (III) Cl toxicity (Chloride toxicity) is a well-known cause of leaf scorching in many crops. } \\ \end{array}\] The correct matching is: A \(\rightarrow\) II, B \(\rightarrow\) I, C \(\rightarrow\) IV, D \(\rightarrow\) III.

Step 3: Final Answer:
The correct set of matches corresponds to option 1.