FLOWER
PRODUCTION
Stigma
Anther
Pistil or Carpel
(Female organ)
Statemen
(Male organs)
Style
Filament
Ovary
Ovule
Peta
l
Sepal
Receptacle
MALE REPRODUCTIVE PART
Responsible for pollen
formation
Contain male reproductive part
Pollen grains
Anther
Statemen
The male organ
(Male organs)
Filament
attached to the anther, and they
keep the anther in place
MALE REPRODUCTIVE
PART:STAMEN
Where are pollen grains formed?
POLLEN is a mass of microspores in a seed plant appearing usually as a fine dust
Pollen grains are microscopic structures that carry the male
reproductive cell of plants
Pollen grains
Where are pollen grains formed?
In flowering plants, pollen grains
are formed with the anther.
FEMALE REPRODUCTIVE
PART:CARPEL
Stigma
Pistil or Carpel
(Female organ)
The female
organ
Style
Ovary
Ovule
FEMALE REPRODUCTIVE PART
:CARPEL
The stigma contains a sticky substance. Its job is to
catch the pollen grains. These pollen grains can stick to
stigma.
The style is the stalk like thing that holds up the
stigma.
Ovary holds ‘ovules’ or eggs. OVULES produce
FEMALE SEX CELLS.
After fertilization the OVULES BECOME THE SEEDS.
The OVARY BECOMES THE FRUIT.
FEMALE REPRODUCTIVE PART
After fertilization the OVULES BECOME THE SEEDS.
The OVARY BECOMES THE FRUIT.
Petals
WHAT IS THE FUNCTION OF THE
Petals are often very brightly coloured.
PETALS?
Main job is to attract insects,
such as bees or butterflies, into
the flower.
These insects pick up pollen
from the flowers, and carry it to
the next flower they visit.
This is how most flowers
get pollinated.
Sepals
 Sepals are special types of leaves that form a ring around the petals.
 Their job is to protect the flower while it is still a bud.
 After the flower has opened, the sepals can still be seen behind the petals.
 Sepals are usually green or brown, although in some plants they are the
same colour as the petals.
Bougainvillea
Nectaries




The nectaries make nectar in the flower.
Nectar is a sweet substance, which insects drink to give them
energy.
The nectaries are usually right in the centre of the flower.
This means the insects have to reach deep into the flower to
find the nectar.
Receptacle
 The receptacle is the top part of the flower stalk, where
the parts of the flower are attached. It is often rounded in
shape.
 All the parts of the flower are attached to the
receptacle.
Types of reproduction in plants.
ASEXUAL REPRODUCTION
Plants which don’t produce flowers.
They have different ways to spread their
species.
ASEXUAL REPRODUCTION IN
NON-FLOWERING PLANTS
SEXUAL REPRODUCTION
 Flowering plants
Sexual reproduction in flowering plants takes place when flowers
get pollinated by insects .
The process of joining a tiny male sex cell with a female sex cell and
producing seeds in flowers.
Hibiscus plant
REPRODUCTION
Male sex cells (also called male
gametes)
Female sex cells (also called female
gametes or eggs)
The process of joining a tiny male
sex cell with a female sex cell and
producing seeds in flowers.
Pollination
Pollination is the transfer (move) of pollen grains
from the anther (of the stamen) to the stigma (of
the pistil).
WHERE CAN POLLINATION HAPPEN?
1) BETWEEN POLLEN GRAINS AND STIGMA OF THE SAME
FLOWER.
2) BETWEEN POLLEN GRAINS AND STIGMA OF DIFFERENT
FLOWERS OF SAME SPECIES.
 In this process, the pollen grains transfer from
the stigma of the same or genetically similar
flower.
 Self-pollination can be observed in legumes such as
orchids, sunflowers, peas, peanuts, oats, peaches,
potatoes, wheat, and others.
CROSS POLINATION
 The cross-pollination is defined as the deposition of
pollen grains from a flower to the stigma of another
flower.
 Commonly, the process is done by insects and wind.
 By insects, the process takes place in several plants like
strawberries, grapes, raspberries, etc. Pollination by the
wind is observed in different grasses, maples trees,
dandelions and catkins.
FERTILISATION
FERTILISATION

another flower of the same species., it
produces a tube.
Then, sends out a tube into the stigma down
the style to the ovule found in the ovary.

The tip of the pollen tube breaks
open where the male reproductive
part will fuse with the female
reproductive part.

This is where fertilization
occurs.

The EGG develops into a
SEED and the OVARY into
a FRUIT.