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Reproduction in Lower and Higher Plants — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYReproduction in Lower and Higher Plants5 Marks
Question
Pollen Viability.
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Answer

  1. It is a functional ability of pollen grain to form male gametophyte by its germination.
  2. Viable pollen grains germinate on stigmatic surface,
  3. Environmental factors mainly temperature and humidity influence its germination.
  4. Viability is low up to 30 minutes in plants like rice and wheat.
  5. Duration of viability is up to months in some plants of family Leguminosae, Rosaceae and Solanaceae.

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