Question

Match List-I with List-II

Choose the correct answer from the options given below:

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

Hint:

Key historical milestones in plant nutrition:
- Theodore de Saussure (1804): Established quantitative plant uptake of mineral elements and nitrogen.
- K. Warington (1923): Established the essentiality of Boron.
- J.S. McHargue (1922): Established the essentiality of Manganese.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Establishing the essentiality of plant nutrients involved contributions from several historical scientists who isolated and proved the functional necessity of specific elements.

Step 2: Detailed Explanation:
- Phosphorus (A): Carl Sprengel (1839) is recognized for demonstrating the essentiality of phosphorus for plant growth. This matches (II).
- Nitrogen (B): Theodore de Saussure (1804) demonstrated that plants absorb nitrogen from the soil rather than directly from the atmosphere, establishing its role as an essential soil-derived nutrient. This matches (I).
- Boron (C): Katherine Warington (1923) demonstrated that boron is essential for the growth of broad bean plants, establishing its role as an essential micronutrient. This matches (IV).
- Manganese (D): J.S. McHargue (1922) established the essentiality of manganese for plant growth. This matches (III).

Step 3: Final Answer:
The correct matching sequence is (A)-(II), (B)-(I), (C)-(IV), (D)-(III).