First slide

Pre-fertilisation : Structures and Events

Question

What type of pollination takes place in Vallisneria?

Easy

A

Pollination occurs in submerged condition by water
B

Flowers emerge above surface of water and pollination occurs by insects
C

Flowers emerge above water surface and pollen is carried by wind
D

Male flowers are carried by water currents to female flowers at the surface of water

Solution

Vallisneria is a water pollinated plant. In Vallisneria, the female flowers reach the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water. These are carried passively by water currents to the female flowers at the surface of water.

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