Question

What would happen if the stigma isn't sticky

Answer 1

Answer:

If the stigma isn't sticky, the pollen won't adhere well, and the stigma isn't receptive anyway. There are other plants that are very particular, and some I find I need to pollinate at least once a day during the duration to get good seed set.

hope its helpful

Answer 2

Answer:

In sexual reproductive flowers, stigma of female reproductive part is generally sticky or hairy to hold the pollen grains easily and prevent them

to move further for better chemotropism.

If stigma were not sticky pollen grains would not come to stigma by the action of mode and could not perform chemotropism for fertilisation.