Name : Nadya Awaliah NIM : 155040201111216 155040201111216 Class : G
The Effect of Light On Mung Beans L.) Growth (Vigna radiata L.) Nadya Awaliah Departement of Agroecotechnology, Faculty of Agriculture Brawijaya University, Malang Corresponding author email:
[email protected] Abstract: Mung Beans is a kind of crops that growth well in tropical regions which has a high light intensity. This research was aimed to know and compare the growth of Mung Beans ( Vigna radiate L.) with the effect of different light intensities. In this research we analyzed the growth of the Mung Beans that is placed in the light area and the dark area. This has been conducted in Malang on dry season with the average temperature of 23ºC- 26ºC. The results of this research are as follows: dark area is good for the growth of Mung Beans, while the light area can inhibit the growth of Mung Beans.
Key words: Mung Beans, growth, light intensities. I.
Introduction
Based
on
the
rate
of
Mung bean is a legumes that has an
photosynthesis and respiration, Mung
important benefits in supporting the
bean is included into the Group of C-3
improvement of people's nutrients. The
plant. C-3 plants is a plant that has a high
use of mung beans are also very diverse,
level of photorespiration, resulting the
from simple processing to sophisticated
net proceeds of photosynthesis is much
refined products. In Indonesia this day,
lower than C-4 plants such as corn. C-4
Mung beans
is currently used as:
plants have specialized anatomy needed
vegetables, soups, porridge, drinks, baby
to metabolize CO2 and can effectively
food, cakes, tofu, and etc. Indonesia's
eliminate the photorespiration (the rate
population is large enough to cause
of photorespiration is zero) and may
potential market demand for mung beans beans
increase
(Trustinah, 1992).
(Hidayat,
CO2
assimilation
1995).
This
capacity
specialized
Anatomy are characterized with vascular
tissue which is breeding with bundle
totipotention, which if cultivated in a
sheet cells that containing a large amount
compatible planting media will grow
of organelles (Brown & Hattersley,
into a perfect plant (Soeprapto, 1982).
1989; Anonim, 2012).
Cotton
as
planting
media,
the
Soeprapto (1982) stated that light
dominant content of cotton consists of
intensity is really influence the growth of
fibre plants (cellulose) while the other
mung beans. In this journal we will
nutrient substances is only a few. The
prove that the light intensity will
main reason why we use cotton as a
influence the growth of the mung beans
planting media is because cotton can
with two different treatments.
keep the moisture longer and better than a soil as a planting media, so that the
II.
mung beans were planted in cotton
Subject of the Research
Growth is the process of increasing
media can grow faster than in the soil
the number of protoplasm cells in an
media. Besides cotton soft texture is
organism, wwhich is accompanied with
perfect for mung bean plant roots when
increasing size, weight, and the number
it still young and weak, so the young
of cells that are not returned to the
roots can grow better for a certain period
original condition (Moore, et al, in
of time (Hadi, 2012).
Karmana, 2007: 11) In the growth stages of mung beans it requires planting media and
are
influenced by several factors, there is two factors; External factors are factors that influence growth and development from outside of the plant, include: nutrients,
temperature,
light,
III.
water,
humidity, planting media, etc (Wie, 2012). In the study growth of the mung beans, The base theory that used is totipotention theory that’s written by Schleiden dan Schwann that stated about a part of the plant that alive has the
Research Method
The
method
used
is
an
experimental method. The experimental method of research is a controlled procedure that sees the manipulation of an independent variable to observe and measure any effect this has on a dependent
variable.
The
essential
features of the experimental method are then
the
control,
measurement
of
observation variables.
and This
experiment was conducted in Malang on dry season with the average temperature
of 23ºC- 26ºC. The experiment was
Second, put the mung beans seeds in the
conducted with two treatments the Mung
plastic cups that already filled with wet
Beans that is placed in the light area and
cottons(10 seeds each). And then, placed
the dark area.
one cup in the light area (field) and the other one is placed in the room which has
The tools and materials are two
a low light intensity (bed room).
platic cups, cotton, mung beans seeds,
Observed and measured the growth of
and water. The process are first put wet
the plant every day in seven days.
cottons in the two different plastic cups. IV.
Result
Table 1. Plants Height
Plant Height (cm)
Light
V.
Intensity
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Day 7
Light Area
1
1,2
1,3
1,4
1,4
1,6
1,7
Dark Area
-
-
1
1,5
1,7
2
2,1
Discussion
is the higher the intensity of light
From the table above we can see that
obtained by plant mung beans then it
the growth of mung bean plants were
caused slow growth of the stem and
placed in a light area grow since the first
make the stem to growth shorter and
day we planted and kept getting higher
otherwise the lower the intensity of light
every day. Meanwhile, the mung beans
obtained the mung beans, the length of
plants that are placed in a dark area
the stem that grows is more long.
began to grow on the third day after planted. However, the end of the result is a mung bean plants that are placed in a dark area has a length longer than the mung bean placed in the light area.
VII.
Acknowledgement
First of all, thanks to ALLAH S.W.T for his mercy and guidance in giving me fullstrength to complete this “The Effect of Light On Mung Beans ( Vigna radiata
VI.
Conclussion
The effect
of light intensity on the
growth and development of mung beans
L.) Growth Experiment” task. Even
facing
withsome
difficulties
in
completing this task, I still managed to
complete it. A lot of thanks to my teacher, Mrs. Putri Gayatri for all of her support and guidance in helping me to finish my task that really tested my abilities mentally and physically. Then, I would like thanks to my parents, for supporting me mentall y and physically not just during finishing this tasks but also during my whole studies. In addition, grateful acknowledgement to all of my friends who never give up in giving their support to me in all aspects of life. Thank you, I will never forget all of your kindness. VIII. Reference
Hadi, Abdul.2012. Pengaruh Media Tanam Terhadap Pertumbuhan Kacang Hijau. Jakarta: Erlangga. Hidayat, E.B., 1995. Anatomi Tumbuhan Berbiji. Bandung: Institut Teknologi Bandung Press. Karmana, Oman.2007. Cerdas Belajar Biologi. Jakarta: Grafindo S, H. Soeprapto.1982. Bertanam Kacang Hijau. Jakarta: Penebar Swadaya. Trustinah. 1992. Biologi Kacang Tanah. Badan Penelitian dan Pengembangan Pertanian. Pusat Penelitian dan Pengembangan Tanaman Pangan. Balai Penelitian Tanaman Pangan Malang Wie, Suwiyantari. 2012. Pertumbuhan dan Perkecambahan Kacang Hijau. Yogyakarta: Kansius.
