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.