detail of Flower Anatomy >>> For more
detail of Fertilization
in rice can be divided into two big stages:
pre-flowering stage and flowering stage.
Prior to flowering, flower organs are
developed to become ready for reproduction.
Pre-flowering stages are based on the
development of sexual organs (male part and female part).
In anther, pollens
are formed and developed.
The ovary, the chamber
that envelops the ovule, is formed.
The tissues in ovule
are formed and start developing.
Formation of Embryo Sac
The embryo sac,
the storage of nutrients for the baby (embryo) to grow until it reaches
out of soil and gets own nutrients
by photosynthesis, is formed.
When the embryo
sac is completely developed, the other flower organs are also ready for
flowering and fertilization.
Usually a rice flower is ready for fertilization
1 day before it starts flowering. Within the
day between pre-flowering and flowering stages, a flower begins pollination
Once pollen in the
anther (male reproductive part) and the
embryo sac in the ovule (female reproductive part) are fully developed,
the next stage is
1. Prior to Anthesis 2.
The maximum opening (25-30degree)
= Before the
opening of the spikelet
Tip of the lemma
and palea begin to open. The
anther filaments elongate
and anthers exserted completely.
How does it look in real life?
3. The Closing of the Spikelet
4. The Finish of Flowering
come out, scattering pollen. The Anthers are
left outside and die.
Soon the anther filaments wither and The closed
spikelet will never open again. anthers droop.
The spikelet protects the ovary,
At the same
time, the spikelet start closing. which has started the next
The closing is completed within 20-30 minutes.
of reproduction -- fertilization.
There are four
big steps in anthesis,
and the whole
course of events process only in one to two and a half hours.