Question

Match List I with List II 

Choose the correct answer from the options given below: 
 

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

Hint:

Grow-out = Purity.
TZ/Viability = Aliveness.
Stress/Mechanical barrier (Brick) = Vigour.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The question focuses on various seed testing procedures used to determine quality, purity, and physiological status.

Step 2: Detailed Explanation:

• Grow-out test (A-II): A field test where seeds are grown to maturity to observe morphological traits. It is the gold standard for determining the genetic purity of a seed lot.

• Osmotic stress test (B-IV): Used to evaluate drought tolerance by simulating low water potential using chemicals like Polyethylene Glycol (PEG) or Mannitol.

• Viability test (C-III): Often the Tetrazolium (TZ) test, which determines if the embryo is alive and metabolically active, even if the seed is dormant.

• Brick gravel test (D-I): A vigour test where seeds are planted under a layer of brick gravel. Only seeds with high vigour (emergence force) can break through the heavy layer.
Final Answer:
Matching: A-II, B-IV, C-III, D-I. This matches option (B).