1. WELCOME

4. DO YOU THINK IS THERE ANY RELATION BETWEEN FLOWER AND FRUIT?

5. LET’S SEE HOW FLOWERS BECOME FRUIT

6. POLLINATION

7. Parts of flower

8. Pollination
The transfer of pollen grains from the stamen to stigma is called pollination.
There are 2 types of pollination
Self-pollination
Cross-pollination

9. Self pollination
When the pollen lands on the stigma of the same flower it is called self-pollination.

10. Cross pollination
When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination.

11. AGENTS OF POLLINATION

12. Bee Bees visit mostly nectar producing flowers.
Pollen stick to the back of bee.

14. Butterfly Butterfly has good vision and less sense of smell.
Butterfly visit flowers in cluster.

15. Bird Birds have good sense of colour.
Birds don’t have good sense of odour.
Therefore bird-pollinated flowers have less odour and have bright colour.

16. Ants Ants are wingless and crawl into each flower.
Ants are not much responsible for pollination.

17. Water Pollens can float on water’s surface.
The pollen is transferred to the stigma by water.

18. Wind Wind pollinating flowers have well exposed anthers and stigma.
Pollen is transferred to the stigma by wind.

19. Bat
Over 500 plant species rely on bats to pollinate their flowers, including species of mango, banana, cocoa, guava.
Plants pollinated by bats often have pale nocturnal flowers.

20. Bat pollinating banana

21. Bees pollinating almond
Almonds are only pollinated by bees.

22. True or false
When the pollen lands on the stigma of the another flower it is called self-pollination.
Ans: False
When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination.
Ans: True

23. True or false 1. Birds have good sense of colour. Ans: True
2. Bee visit mostly nectar producing flowers.
3. Birds have good sense of odour.
Ans: False

24. True or false
1. Pollen can not float on water. Ans: False 2. Wind pollinating flowers have well exposed anthers and stigma. Ans: True 3. Plants pollinated by bats often have pale nocturnal flowers.

25. THANK YOU