Science 3

1. ASEXUAL
REPRODUCTION
IN PLANTS

2. It is used for producing plants easily.
It doesn’t involve sex cells in order
to produce.
No seeds needed.
Parts of the plants are used for
reproducing offspring.

3. VEGETATIVE
REPRODUCTION
P l a n t s t h a t r e p r o d u c e s e x u a l l y c a n
a l s o r e p r o d u c e a s e x u a l l y . T h e a s e x u a l
p r o c e s s i s c a l l e d V E G E T A T I V E
R E P R O D U C T I O N .
T h e r e a r e d i f f e r e n t t e c h n i q u e s o f
v e g e t a t i v e r e p r o d u c t i o n .

4. CUTTING
• Process where a stem, leaf, or root
cutting is taken from the plant.
• This cutting is then planted into
suitable soil or is secured into a
moist medium.
• The planted part develops its own
roots.
• Example: fortune plants and
santan, rose,

5. GRAFTING
• Technique used widely by fruit and
rose growers.
• A V-shaped cut is made into the stem
of a healthy plant that is called stock.
• The stem of another plant if the same
type called the scion is then trimmed
and fitted into the cut.
• The grafted part is then bound by a
cloth
• After sometime, the two stems become
one.
• Avocado producers use the grafting
technique to grow more trees.

6. USE OF STORAGE ORGANS
• Storage organs are those parts rich
in nutrients.
• These storage organs can be drawn
into new plant.
Example: ginger rhizomes, potato
tubers, onion bulbs, and taro or
corms.
• Potato tuber or underground stem
and is propagated using its “eyes”.
• Plants grow through those “eyes”
when a potato is planted
underground.

8. STOLON OR RUNNER
• Stolons or runners are special stem
that spread over the ground like
strawberry plant.
• On the surface of the stems, buds
grow and develop into new plants.
• Another example is hydrilla but live in
aquatic habitats unlike strawberry.
• Ex; sweet potato, mint, Bermuda

9. LAYERING
• A technique of plant propagation that
allows stems to grow roots while they
are still attached to the parent plant.
• A target portion is wounded or a
piece of bark is removed and then
covered with a medium that retains
moisture, such as moss.
• After some time, the root detaches
and grows into an independent plant.
• Example of plant that is applied with
this technique and this is lychee.