What breaks the dormancy of potato tuber:
1.  Gibberellin
2.  IAA
3.  ABA
4.  Ethylene

Subtopic:  Gibberellin |
 55%
Level 3: 35%-60%
AIPMT - 2001
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Cell elongation in internodal regions of the green plants takes place due to:

 
1. Cytokinins 2. Gibberellins
3. Ethylene 4. Indole acetic acid 
Subtopic:  Gibberellin |
 71%
Level 2: 60%+
AIPMT - 2004
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