Different Types Of Seed Dispersal

By Group 6Ruth, Joanne, Danish and Nirupan

IntroductionPlants, unlike humans, have many different typesof reproduction methods: seeds, spores, stemcutting and more. We will explain to you aboutdifferent types of reproduction methods otherthan seeds.

- Listen closely as there will be prizes at theend.

Reproduction by spores• Unlike seeds, spores are an asexual method of

reproduction in plants.• Scientists believe that, at one time, all plants were actually

spore-bearing. • However, plants began to form seeds rather than spores. • Primitive plants such as mosses, algae and ferns now rely

on spores to reproduce.

Layering

• These plants produce long, drooping canes. When the canes make contact with the soil, they Begin to take root and form new plants.

• Example of plants which uses this technic:• Blackberries and multiflora roses •

Budding

• A bud like outgrowth is formed on one side of the parent cell and soon it separates and grows into a new plant.

• Example of plant that uses this technic: yeast•

Vegetative reproduction• Many plants have the ability for vegetative

propagation.• Meristematic cells capable of cellular differentiation

are present in many plant tissues. • This is a mulberry • tree that reproduces• by the process of • vegetative propagationvegetative propagation.•

Suckers• Some plants produce new plant shoots from their

root systems. • This form of vegetative reproduction is called

suckering.• The new shoots are called suckers.

Banana trees reproduce by suckers.

Grafting• A form of asexual plant propagation. • Consists of connecting two pieces of living plant

tissue in a way that allows the parts to grow and develop as a single plant.

• A piece of stem or shoot with dormant buds, known as the scion, is the part that will grow and develop with branches.

Plantlets and Growth From Damage

• Plantlets• Plantlets are new, small plants that grow on the leaf

edges of a parent plant.

Duckweed reproduces by plantlets.

• Growth from Damage• Tree stumps often produce new shoots; broken

leaves can also take root.

Runners• Plants like strawberry produce stems that grow

along the ground, creating new plants at intervals along the runner, complete with roots and leaves.

• The runners are also called stolons.

Strawberry plant

Stem Cutting• Forcing a cutting to produce roots is the most

common method of propagation.• This method can used on leaves or stems,

depending on the type of plant.• This method usually works better with herbaceous

plants but can be successful with woody plants as well.

This is a geranium that reproduces by stem cutting.

Quiz Time!!!Q1) What is another name for runners?Ans: StolonsQ2) Is spores a sexual or asexual way of reproducing?Ans: asexual reproductionQ3) How do duckweeds reproduce?Ans: Plantlets

ConclusionIn conclusion, there are many types ofreproduction methods for plants. For example,spores, stem cutting etc.

Credits and Sources

• Wikipedia, eHow.com, gardenguides.com, Google and Yahoo

• Tom Clark, Mount Holyoke College Botanic Garden, Horticulture Identification and Judging Contest, Plant Propagation

THANK YOU FOR YOUR KIND ATTENTION!!!!