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Ann-Terese's 2011 Science Project-1

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					      THE EFFECT OF DIFFERENT
   ENVIRONMENTAL FACTORS ON THE
    GROWTH OF SUNFLOWER PLANT
                 BY
            ANN-TERESE
   2ND GRADE, Ms OLIVIA BAKER’S CLASS
       First Missionary Baptist Church-Child
        Development Center And Academy
   3509 Blue Spring Road NW, Huntsville, AL 35810
                      Tel: (256) 852-8873


INTRODUCTION AND PURPOSE
Sunflowers are unique in their ability to provide energy in the
form of nourishment and vibrance, an attribute which mirrors
the sun and the energy provided by its heat and light. As gifts of
radiant warmth, sunflowers are the happiest of flowers, and
their meanings include loyalty and longevity. The Dakotas,
Minnesota, Kansas, Colorado, Nebraska, Texas, and California are
the major producers of sunflowers. Environmental conditions
such as light levels, temperature (heat), moisture (water), soil
fertility, disease pathogens, and soil pH favor the growth of this
plant in a process called photosynthesis. It is against this
background, that the purpose of this project is to look at the
conditions necessary for the growth of the plant. In order to do
this, ten sunflower seeds each (see fig. 1) were planted in five
containers with the same growing medium (soils) labeled A, B, C,
D, and E respectively (see fig. 2-6 and table 1), and each placed
in a different environmental condition (see fig. 7-11 and table 1).
They were observed for a two weeks period (03/01-03/15/2011)


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to see which ones actually support the growth of sunflower plant
(see fig. 12-16).


QUESTIONS
    Which environmental factors favor the growth of
    sunflower seeds?
   Does temperature (heat or cold) have an effect on the
    growth of sunflower seeds?
   Does the degree of light or darkness have an effect on the
    growth of sunflower seeds?
   What is the most appropriate weather that suits the
    growth of these seeds?


THE HYPOTHESIS
   Sunflower needs all necessary environmental factors to
    grow to maturity.
   Temperature (heat or cold) has an effect on the growth of
    sunflower seeds.
   Light and not darkness is necessary for the growth of
    sunflower seeds.
   Weather plays a huge impact on the growth of sunflower
    seeds.


EXPERIMENTAL DESIGN: MATERIALS AND
METHOD USED
 Ten seeds each were planted in five containers filled with the
  same growing medium (soils) for all and labeled A-E on
  03/01/2011 at 5:00 pm (see fig. 1-6).
 The samples were then watered and placed in five different
  environmental conditions (see fig. 7-11) as outlined below:
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     Sample A (Green) was placed inside an uninsulated garage
      but heated with a light bulb (40 watts) and door closed
      where temperature fluctuates throughout the study
      period (see fig. 7).
     Sample B (Red) was placed in a dark shoe closet in the
      basement facing north with a temperature of 72˚F for
      the entire period (see fig. 8).
     Sample C (Yellow) was placed in the kitchen window sill
      facing west with the blinds removed all through and
      having a temperature of 74˚F (see fig. 9).
     Sample D (Blue) was placed in the bathroom close to a
      window sill facing north with the blinds removed all
      through and having a temperature of 78˚F (see fig. 10).
     Sample E (Turquoise) was placed outside in front of the
      porch where temperature fluctuates but light remains
      normal (see fig. 11).


EXPERIMENTAL DESIGN CONTINUED:
PROCEDURE FOR DATA COLLECTION AND
PRESENTATION
 The samples were watered at 5:00 pm every other day
  throughout the two weeks period (03/01-03/15/2011).
 All the samples were observed and monitored closely three
  times a day at 6:00 am, 4:00 pm, and 8:00 pm respectively
  (see fig. 7-16). The essence of this is to note the changes in
  the growth rate of the plants (see table 1).
 To confirm the samples with the best and worst growth rate,
  measurements of the longest and shortest plants in each
  growth medium was taken for the different environmental
  conditions and recorded (see fig. 12-16).

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 Descriptive analysis (percentages) of the growth rate per
  sample was also used to determine the environmental condition
  that is most favorable for the growth of the sunflower seeds
  (see fig. 7-11 and table 1).
 On 03/15/2011 at 5:00 pm, the final results were organized
  and report written (see fig. 17 and 18).


RESULTS AND CONCLUSION
 Sample A showed growth rate of four seeds on 03/08/2011
  and one on 03/12/2011, giving a 50% growth rate. This did not
  thrive well because the environment was too cold for the
  seeds to grow (see fig. 7 and 12, and table 1).
 Sample B showed growth rate of four seeds on 03/04/2011
  and one on 03/09/2011 respectively. Despite being in a dark
  room, it had a 50% success growth rate. Three days after
  their growth, they could not receive adequate light levels,
  hence becoming leggy, weak, pale yellow, and eventually died
  (see fig. 8 and 13, and table 1).
 Sample C showed the best growth rate of seven seeds (70%)
  on the same day (03/04/2011), and all the plants had the same
  length (see fig. 9 and 14, and table 1). This occurred because
  the kitchen was large, airy, and supported the best heat that
  encourages the plant’s growth.
 Sample D had the next best results of five seeds that grew on
  03/04/2011 while two others sprouted on 03/09/2011 (70%
  growth rate), but the lengths of the plants were slightly
  different (see fig. 10 and 15, and table 1). This occurred
  because the bathroom was too small, with stuffed air, but
  supported more heat that made the plants to increase in
  length searching for adequate light.

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 Sample E had the worst results as three seeds each sprouted
  separately on 03/10/2011 and 03/12/2011, while one grew on
  03/13/2011 respectively, for a total of 70% growth rate (see
  fig. 11 and 16, and table 1). These seeds took so long to sprout
  because they were exposed to extreme outside cold that does
  not support the growth of the seeds. But five days to the end
  of the project, the weather warmed up to support their
  growth.
 Therefore, it can be confirmed that the hypothesis which
  states that “Sunflower needs all necessary environmental
  factors to grow to maturity”, is true. Also, temperature (heat
  or cold) has an effect on the growth of sunflower seeds (see
  fig. 7-16, and table 1).
 Furthermore, the hypotheses that “light and not darkness is
  necessary for the growth of sunflower seeds, and weather
  plays a huge impact on the growth of sunflower seeds”, are all
  true (see fig. 7-16, and table 1).
 Although this experiment proved to be true, there seems to
  be some factors that have caused changes to the
  experimental results such as:
     o The duration of the experiment was too short and the
        climatic condition was not favorable. Sunflowers grow in
        well drained loamy soils. They can tolerate clay and sandy
        loam but will not flourish in wet soil. That is the reason
        why samples A and E showed very slow growth rate.
     o They thrive well in harsh environment. That is why in
        Kansas, even though it’s the state flower, the sunflower
        has achieved weed status, so heat and dryness is no
        enemy to this strong grower. All the samples were in wet
        soils and the environment was cold.


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    o Lastly, there are other conditions that have to be
      considered in addition to the factors examined and
      discussed that are needed in the growth of the plant.
      These are: buying the right seed, planting the seed right,
      growing the plants late and watered only in very dry
      conditions, and enjoying the process.


REFERENCES
• Gober Jim (2011): List of Things That Affect Plant Growth or
  Seed Germination. eHow Contributor. Accessed online on
  March 2, 2011. www.ehow.com/facts.
• Green Samantha (2011): The History and Meaning of
  Sunflowers. eHow Contributor. Accessed online on February
  26, 2011. www.ehow.com/facts.
• Reynolds Laura (2011): How to Grow Sunflower Seeds. eHow
  Contributor. Accessed online on February 26, 2011.
  www.ehow.com/facts.


Remarks:
Researcher wants to appreciate the efforts of her kid sisters,
Rita and Ava, for their assistance given throughout this research
project. May God bless my dad and mum, Amen.




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