Flowering and fertilisation

Anthesis: floret pictures


Half way through pollen shed. The feathery female stigmas are sticky and ready to receive pollen. Not all the florets will set grain. Two or three grains per spikelet are average at harvest.
Ventral view of the carpel immediately after pollination. pollen has stuck to the stigmas but these are still unfurled. When fertilization is achieved the stigmas will fold up. The ventral groove is already a feature of the newly fertilized grain.
Within each floret the female carpel is protected, on the outside by the lemma (here removed), and on the inside by the palea. The three male stamens are released from the lemma and palea by the action of the lodicules.
The anther splits open and pollen is released onto the stigmas.
Individual pollen grains are released from the pore at the tip of the anther.
This carpel and its associated stamens, comprising yellow anther and extensible filament, have been removed from the floret before the pollen is released.