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Biologi
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Biology
Name :
Adinda Happy Estandi
AqurismaSikapiscaFitri
MahesaDaniswara
MaulitsaPutriyono
TesyaAlmadea
GROWTH OBSERVATION
GROWTH OBSERVATION
I. Object : To observation the effect from light to plant
II. Teory :
The Germination is the pop up of plumula. And the germination is
the part of growth and development. Growth and development is
affected by some factor external and internal, either is light.
Generally the light is make elevation inhibiting, because the light
can analyze the auxin. The example we can see in the plant in the
dark place will higher than the plant in the lighting place. This is
called Etiolosi.
The Light also stimulate the growth for some plant. This is have
connection with Fitocrom.
III. Devices and Material :
a. 10 seeds of corns
b. 10 seeds of green beans
c. 4 Plastic glass
d. 1 Cardboard
e. Some cotton
f. Some water
IV. Step :
a. Soak the seeds in the water. Who float in water, so, it is not
good seed. We must take the seed, who that drown in the
water.
b. Prepare the cotton, 20 good seed ( 10 corn, 10 green bean ),
and glass.
c. Put the cotton in all of glass.
d. And put the 5 seed of each other. And give the glass name
with A, B, C, and D. ( A : 5 corn, B : 5 green bean, C : 5 corn,
D : 5 green bean )
e. Put the glass A and C under the cardboard, B and D under
the sunlight.
f. And give water routine in every day.
g. And CHECK IT.
V. Result
NO Day Time A Glass B Glass C Glass D Glass
1. First Saturday, 28 July
2012 10 : 39
The seed was spend root ± 2
mm
The seed was opened and spend root ± 1.4
cm
Not gave a alteration
The seed was opened and spend
root ± 5 mm.
2. Second Sunday, 29 July
2012 10 : 49
The root growth until ±
2 cm.
The root growth until ± 4 cm. Spend
trunk and leaf. The seed colored purple.
Spend root ± 1 cm
The plant spend the trunk prospect.
The seed colored purple, green, and yellow.
3. Third Monday, 30 July
2012 05:45
The root become long.
The trunk growth until ± 4 cm. The
leaf start to growth
The root growth
Spend leaf.
VI. Conclusion
Based on theory below, plant in the lighting place will blocked the
growth. So, the seed under the cardboard show the faster growth then
under the lighting. And, now we know growth and development have
some factor to influence them.
4. Fourth Tuesday,
31 July 2012 05:45
Root, trunk,
and leaf start to growth.
The trunk growth
until ± 9 cm. The leaf start to become long.
Spend fiber
root. And the seed spend leaf.
The leaf growth.