SEEDS AND SEEDS

1. DISPERSAL OF SEEDSThe process of spreading of seeds to a larger area is called is called dispersal of seeds. SEEDS AND SEEDS

2. Why seeds are to be dispersed?If all the seeds fall and grow under the mother tree,it leads to competetion for water, nutrients,space to grow, sun lightetc.The crowded plants shows an unhealthy growth. So the yield-fruits,seeds etc is less in number.To avoid these and for the healthy growth of the plant ,nature itself has planned for the dispersal of seeds.

3. Dispersal of seeds by man Man plays an important role in the dispersal of a wide variety of seeds.Seeds of cereals,millets, pulses,fruits,vegetables,Flower seeds,oil seeds etc are spread by man.

4. Seeds spread by man Paddy seeds

5. WHEAT

6. Vegetable seeds

7. Fruit seeds

8. Dispersal of seeds by animals/birds:Fleshy part of the seeds/ fruits is eaten by the animals / birds and the seeds are thrown away.

9. Seeds/fruits dispersed by animals/birds:

13. Seeds with hooks and spines:

14. Dispersal of seeds by wind:Some seeds are very light and it has hair or wing like structures/parachute seeds which are carried away by blowing wind and spread to far of places.

15. Seeds spread by wind:

17. . Dispersal of seeds by water:Seeds of the plants growing by the sides of the rivers and streams etc may be carried by flowing waterspread to far of places.

18. Seeds/Fruits spread by water: