Multiple choice

Which of the following does not exhibit seed dormancy?

  1. Rhizophora

  2. Xanthium

  3. Phaseolus

  4. Cassia

  5. -
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A Correct answer
Explanation

Seed dormancy is defined as a state in which seeds are prevented from germinating even under environmental conditions normally favourable for germination. The torpedo-shaped seed of a mangrove (Rhizophora maritima) is an exception. It germinates while still on the mother plant. When they fall, seed penetrates securely into soft mud flats.

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