Question

if case of pollination by wind, pollens must be ​

Answer 1

Answer:

Wind pollination (also called 'Anemophily') describes the process of the transfer of pollen from one individual plant to another, whereby the pollen is carried by air currents.

Male part of the flowers (anther and filament - which together are called the 'stamen') are designed to expose pollen to the wind - in this way, pollen can easily be blown by air currents.

The filaments are often long (or at least dangly), with anthers dangling on the end, thus exposing the pollen to the air currents.

Female parts of flowers (stigma) are long and feathery, and so they are ideally designed to capture the pollen as it is blown on the currents.

Wind pollinated plants are adapted to ensure that grains of pollen can easily be carried by the wind from male to female parts of flowers, to ensure fertilization can take place.

Hope it helped..