Upon completion students will be able to G34 Understand the factors that influence plant growth including water nutrients light soil air and climate Gainz By Jose Vargas Today we will learn ID: 547631
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Slide1
For the Instructor
Upon completion, students will be able to:
G3.4 Understand the factors that influence plant growth, including water, nutrients, light, soil, air, and climate.Slide2
#
Gainz
By: Jose VargasSlide3
Today, we will learn..
The 6 factors that affect plant growth
Climate
LightNutrients
Soil
Air
WaterSlide4
Ecosystem
A system that includes all living organisms (
biotic factors
) in an area as well as
its
physical environment (
abiotic factors
) functioning together as a unit.Slide5
Question
Are plants considered biotic or abiotic?
Biotic
! Plants are living organisms which, depend heavily on abiotic factors
. Slide6Slide7
Nutrients
Plants need 16 essential nutrients to live.
2
Main Types
Macro
Nutrients
-Elements needed in large (macro) quantities
Micro
Nutrients
-Elements
needed
in
very
small (micro) quantitiesSlide8
NutrientsSlide9
Nutrients
P
lants
get these
three essential nutrients from
air
and water
Carbon (C
)
O
xygen(
O
2
)
H
ydrogen(H
)
N
itrogen
(N), phosphorus (P), and potassium (K).
F
ound in soilsUsed in large by the plant amounts for growth and survival. Replenished through fertilizationSlide10
NutrientsSlide11
Soil
Soil pH determines the availability of nutrients at certain levels
A
well structured
soil:
Allows
germination
seedling
to
emerge
Allows establishment of
a strong root system.
Allows access to
water
and
nutrientsSlide12
Light
Plants get energy from light through a process called
photosynthesis
, which takes CO2 + H20 and sunlight to
create glucose, oxygen and water.
L
ight
shortages
cause:
Stems
will be leggy or stretched out
Leaves
turn yellow
Leaves
are too small
Leave
or stems are spindly
Brown
edges or tips on leaves
Lower
leaves dry
upSlide13
Air
Wind increases heat loss due to
evaporation
and
convection
(wind chill).
It also contributes to water loss by increasing the rate of evaporation from the soil and the
stomata's
of the plants.Slide14
If a plant’s soil has too much water, the roots can rot because the plant can’t get enough
oxygen
from the soil
.
If there is not enough
water
for a plant, the nutrients it needs cannot travel through the plant.
-
This leads to yellowing or dried leaves
WaterSlide15
Water
A gardener can check the amount of water in a plant's soil by inserting a finger in the soil
.
Moist
soil
has enough water, while dry soil needs to be watered.
Other
signs of a plant needing water include a lighter-than-usual
soil
that is pulling away from the pot's
sides. Slide16
Climate
Climate includes:
Relative
humidity
Rainfall
Light
exposure
Temperature
If
the climate is too hot, the plants will die of
thirst
and will shrivel up.
If
it is too cold, the plants will die from lack of
sun.Slide17
Question
What are the
6 factors that affect plant
growth?
Climate, light, nutrients, soil, air, waterSlide18
Why is this information helpful?
SAE
project
Future job in
ornamental
horticulture