Which element is required for germination of pollen grains ........

Agriculture and Rural Development (Phase-I/II) Agriculture chemistry

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Which element is required for germination of pollen grains?

Sulphur

Potassium

Silicon

Boron

None of these

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Explanation:

Boron influences pollen germination and pollen tube growth.At low concentrations, boron stimulated pollen germination and tube growth. Above 0.02%, boron inhibited pollen germination and tube growth. In the presence of 0.2% boric acid, the germination percentage was 12.87%, much lower than the 60.25% germination of the control pollen grains.