Names: Amer Hussein M. Marsangca
Megan Elizabeth B. Maglinte
Determining The Tuba-tuba Resistance to Saline Water
Statement of the Problem
Previous
Main Problem
Is tuba-tuba a halophyte?
Sub Problems
1. Can tuba-tuba withstand 5ppm level of
water salinity?
Objectives of the Study
Previous
Main Objective of the Study
To know whether tuba-tuba is a halophyte or
not.
Revised (if necessary)
To determine the level of water salinity can
tuba-tuba withstand.
1. How will the increasing level of salinity
affect the leaves and color of the
specimen?
2. How will the increasing level of salinity
will affect the growth of the
specimen’s roots?
3. How will the level of water salinity
affect the rate of leaves falling?
Revised (if necessary)
To determine the resistance of tuba-tuba to
saline water.
Minor Objectives of the Study
1. To be able observe the changes
happening to the tuba-tuba plant while
we apply different levels of salinity.
2.
3.
Hypothesis of the Study (only those which requires statistical tools/proofs)
Hypothesis Statement
Theoretical Basis/Support
Since tuba-tuba is a plant that
We have read in the internet that tuba-tuba is a plant which
can withstand a wide range of
can withstand a specific level of aridity and can live in
environment, it may be able to submarginal area.
resist a significant level of
salinity.
Problem # 1
Independent Variable
Number of tuba-tuba
stems and their length
Level of water salinity
Problem # ____
Independent Variable
Dependent Variable
Variable
Description (level of
measurement ,
continuous/discrete)
Number of leaves left
Color of the leaves
Growth of the specimen
Length of the roots
Discrete
Continuous
Continuous
continuous
Dependent Variable
Variable
Description (level of
measurement ,
continuous/discrete)
Extraneous Variable
Sunlight
Weather
Level of chlorine in
the water
Extraneous Variable
Scope and Limitations of the Study
The research will be focusing on the determination of the ability of the Tubang Bakod to resist
particular levels of salinity. The research shall be conducted in local areas and the effect of the present
environment to the specimen shall not be included in our research. Faucet water shall be utilized in our
research and the chlorination of the water shall not be included in the proposed research. The research
shall be conducted regardless of what weather is present since we have limited time.
PROBLEM # 1
Sampling Method
Simple Random Sampling
Explanation (why you chose this sampling
method)
There are no differences on a population on the
same species of plant
6 half-gallon ice cream containers
6 tuba-tuba stems
5 chicken nets
salt
Beaker
Triple beam balance
faucet water
At home
Amer’s home 
Market :P
Grocery
Mercury drug store
At school (borrow lang mi kajut)
faucet
Experimental Set-up (May be presented using a table or a diagram. Please explain briefly why your
design is such.)
Experimental Procedure (May be in paragraph, bullet or flow chart.)
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Gather 6 tuba-tuba stems approximately 45 cm. from the base, place them on a temporary
container until roots start to grow.
Fill each of the six half gallon icecream container with 2 L of faucet water.
In each of five containers, add a specific amount of salt depending on the level of salinity the
container is assigned to. One will not be added with salt for that is where the control will be
placed.
Place one tuba-tuba stem on each container.
Use chicken net to support the stem and prevent it from falling.
Record the observations daily for 2 weeks.
PROBLEM # __
Sampling Method (describe briefly your sampling
procedure)
Explanation (why you chose this sampling
method)
Materials need
Where you can get these materials or how you can
get this materials (you may include cost of this
materials if they are expensive)
Experimental Set-up (May be presented using a table or a diagram. Please explain briefly why your
design is such.)
Experimental Procedure (May be in paragraph, bullet or flow chart.)
Statistical Tools
Problem
No.
1.
Statistical Tool (provide a brief explanation
why you chose this statistical tool)
Unpaired T-test
Data
Needed
Mean in
each
subjects.
What would the data
analysis mean?
If there is a significant
different between the
control and the tubatuba
that is exposed to a level
of water salinity.