Question

Match List-I with List-II. 

List-I (Vegetable Crop)	List-II (Minimum Isolation Distance (m) for Foundation Seed)
(A) Cauliflower	(I) 400
(B) Onion	(II) 200
(C) Okra	(III) 1600
(D) Brinjal	(IV) 1000

Choose the correct answer from the options given below.

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

Hint:

Isolation distances are always higher for Foundation Seed (FS) than for Certified Seed (CS) to maintain maximum genetic purity.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Isolation distance is the minimum physical distance maintained between two fields of the same crop to prevent unwanted genetic contamination through cross-pollination.

Step 2: Detailed Explanation:
According to Indian seed certification standards, the minimum isolation distances for foundation seed production are:
- Cauliflower: Highly cross-pollinated (by insects), requiring a very safe isolation distance of 1600 meters, so (A) matches with (III).
- Onion: Cross-pollinated (by bees), requiring an isolation distance of 1000 meters, so (B) matches with (IV).
- Okra: Often cross-pollinated, requiring an isolation distance of 400 meters, so (C) matches with (I).
- Brinjal: Often cross-pollinated (to a lesser degree), requiring an isolation distance of 200 meters, so (D) matches with (II).
This matches the sequence: (A)-(III), (B)-(IV), (C)-(I), (D)-(II).

Step 3: Final Answer:
Hence, the correct option is (D).