CHAPTER I INTRODUCTION A. Background of Study Agriculture was developed at least 10,000 years ago, and it has undergone significant developments since the time of the earliest cultivation. Even before, during the Aztec civilization, they had chinampas or small, stationary, artificial islands built on a freshwater lake for agricultural purposes. During the 1800s, the cultivation method has evolved; scientists found out that it is possible to plant without soil. This method is called hydroponics. (World History Micropedia, 1995) Hydroponics produces more number of products. In a growing country with an increasing population yet decreasing food, and increasing industrialization, the people need alternative planting method which produces better and more plenty outcome. (Hydroponics.net, 2011) At present, the climate in the Philippines is getting unpredictable. Sometimes it rains, but most of the time, it’s hot. Some land areas are not feasible for planting anymore because soil has dried, like what happens during El Niño. And due to industrialization, the land areas available for planting are turned into roads, industrial sites and subdivisions. Plant lovers in the city wouldn’t want to spend much to go to the mountains and plant there instead. This method has been around for almost 200 years and scientists 2 still do not know if it is a better way to grow plants or not. This topic was chosen to study furthermore about hydroponics. In this study, the researchers want to distinguish whether growing plants, like Mung bean, hydroponically with fertilizer is more preferable than growing plants “conventionally” in soil with fertilizer by comparing the growth characteristics of the output. B. Statement of the Problem This study focused on the evaluation of the growth characteristics of Mung bean grown in hydroponics method in comparison with conventional method. Sub-Problems: 1) What are the growth characteristics of the Mung bean grown in hydroponics and in soil set-up in terms of: 2) a. height of plant; b. leaf size; c. Biomass? Is there a significant difference in the growth characteristics of the Mung bean between the hydroponics and soil set-up in terms of height of plant, leaf size and biomass? 3) What is the growth rate of the Mung bean in terms of height? 4) Is there a significant difference on the growth rate in terms of height of plants every week between the hydroponics and soil set-up? 3 C. Hypotheses 1) There is no significant difference in the growth characteristics of the Mung bean between the hydroponics and soil set-up in terms of height of plant, leaf size and biomass. 2) There is no significant difference on the growth rate in terms of height of plants every week between the hydroponics and soil set-up. D. Significance of the study Hydroponics can be a source of income from direct sales. It promotes family or community owned micro-enterprises. Also, it does not require the usage of pesticide, farmers can have bigger profit and consumers can be assured of safety products. Planting hydroponically can produce more Mung bean, thus it can help minimize food shortage which is one of the major problems in the country. Fertilizer companies can also benefit. In making the hydroponics set-up, it is possible to make use of recyclable materials such as wood and disposable containers like plastic bottles of coke or plastic cups. This way, the researcher can spend less and it is environment-friendly since the materials used are recycled. It is also ideal for food production in urban areas since urban areas are not feasible for planting and spaces are now used up for industrial sites due to modernization. Also, an area previously considered inappropriate for food production can be occupied for hydroponics farming. 4 E. Scope and Limitations The researchers focused mainly on the difference in growth characteristics of hydroponics and in soil in terms of height, number of true leaves, between hydroponics and soil planting. The researchers used forty Mung beans as plant sample exposed to the two treatments for a time span of four weeks. Mung bean was chosen by the researcher for it grows fast hence it will meet the deadline. The study was conducted at the garden of the researcher. F. Definition of Terms Biomass It is the overall weight of the Mung bean. Fertilizer It is commercial fertilizer added to the plants in both hydroponics and soil set-ups to improve growth rate. Growth rate It is the amount of the increase in terms of height gained in the four weeks of experimentation Hydroponics set-up It is the set-up that used water instead of soil where Mung beans were grown Leaf size It is the length of the leaf’s midrib after four weeks Plant Height It refers to the measurement of the leaf from the roots to the plant top. Soil set-up It is the common planting set-up that uses soil where the Mung beans are directly grown CHAPTER II REVIEW OF RELATED LITERATURE AND STUDIES This research makes use of Mung bean, commonly known as Munggo or Monggo (Figure 1). It is native to India and is the seed of Vigna radiata. The Mung bean is one of many species recently moved from the genus Phaseolus to Vigna and is still often cited as Phaseolusaureus or Phaseolusradiatus which are all the same. Thus, the scientific name of this seed or plant is Vigna radiata. It belongs to the bean family Fabacea (Wikipedia, 2011). Its visual characteristics are small plump cylindrical beans with bright green skin. The leaves of the Mung beans are long-petioled, compound, with three leaflets that are ovate and entire, broad base with pointed tips. Its flowers are yellow arranged near the end of the short stalks. The pods are linear, hairy and spreading. The seeds are 4 to 6 mm in length. (Stuart, 2011) Figure 1. Mung bean 6 The method for plants grown in the absence of soil is called hydroponics. It is derived from the words "hydro" which means "water" and "ponos" which means "labor". Literally it means water work. Way back from history, this technique has been already used from many ancient civilizations. Howard M. Resh noted in Hydroponic Food Production (Woodbridge Press, 1997): “The hanging gardens of Babylon, the floating gardens of the Aztecs of Mexico and those of the Chinese are examples of hydroponic culture. It has been described in the Egyptian hieroglyphic records dating back several hundred years B.C.” According to the American Encyclopedia (2005), scientists had already reported and grew plants in several cultures to which only water and chemical nutrients are supplied. They were John Woodward, an English physician; Jean Baptiste Boussingault, a French Chemist; and Julius von Sachs, a German botanist, who published what was probably the first nutrient culture formula for growing plants. The preferred technique to determine the mineral requirements of a plant was developed at the end of 19th century. Today, hydroponics is confined mostly to the greenhouse cultivation of plants. Grolier (1995) discussed that hydroponic culture requires the carefully controlled intake of carbon dioxide, oxygen, water, plant nutrients, heat and light. If these needed materials are supplied, plants grow well. It does not matter if a plant is grown in soil or water, as long as their nutritional needs are met. Soil may contain harmful organisms for the plants, but in hydroponics, the plant is always soaked in a solution, thus making it healthier. In making the hydroponics set-up, it is possible to make use of recyclable materials such as wood and disposable containers like plastic bottles of coke or plastic 7 cups. This way, the researcher can spend less. It is also ideal for food production in urban areas since urban areas are not feasible for planting and spaces are now used up for industrial sites due to modernization. Another thing is that, an area previously considered inappropriate for food production can be occupied for hydroponics farming. (Mix PH, 2007) In soil, the molecules are too large so the roots cannot absorb organic substances. So these substances are broken down into molecules. Plants, since the beginning, have been growing in soil, their natural habit. They draw water, nutrients from the soil. Their roots anchor themselves in the soil and give the plant the physical support, enabling them to grow erect and tall. In the soil, their roots cannot absorb organic substances – the molecules being too large for them. So these substances are broken down into simpler soluble inorganic salts by the bacteria and other organisms in the soil, and the plants draw them. The soil also has air pockets that contain oxygen which the roots need for some reactions in drawing these simple inorganic substances. Plants absorb 15 elements for their growth – hydrogen, oxygen, carbon – from the air and water. From the soil they absorb – nitrogen, potassium, phosphorus, calcium, magnesium, sulfur, iron, copper, zinc, boron, molybdenum, and manganese. Knowing this, in hydroponics, these simple inorganic salts are dissolved in water in the correct proportion – some more, some less. Salts vary, but commonly – potassium nitrate, calcium nitrate, magnesium sulfate, copper sulfate, iron chelate, boric acid, zinc sulfate and salts of molybdenum and manganese. The solution is fed to the plants grown in containers, roots submerged in the solution. The quality of the solution is monitored to give the plants the maximum 8 nutrients that it could take, care taken not to give an ‘overdose.’ The solution is kept running to ensure that enough dissolved oxygen for the roots. The plant is kept upright by tying it to proper supports as it grows. So overall, since the feed is kept to the maximum, the plant grows fast and produces better crops – the yield from hydroponic farming is higher. (Plant Propagation, 2011) In the research paper entitled “Growth Characteristics of Pechay (Brassica rapa) in Soil and Hydroponics” by Marlon Yu and Maria Veronica Achacoso, results show that the plant grew better in hydroponics. Compared to the soil set-up, the first true leaves appeared but the number of true leaves is equal, and the leaf size is bigger. This research is distinct from others for it makes use of fertilizer for hydroponics and soil set-up. The type of fertilizer used is Urea. Also, the time of experimentation is four weeks compared to the related study entitled “Growth Characteristics of Pechay (Brassica rapa) in Soil and Hydroponics.” CHAPTER III METHODOLOGY A. Research Design The study employs randomized complete block design to be able to determine the difference in terms of growth characteristics of plant grown hydroponically (using water) and conventionally (using soil). The researchers made use of Mung bean (Vigna radiata) as its plant sample. Twenty samples composed of four groups, each having five Mung beans were prepared for each treatment. Growth characteristics monitored weekly for a month includes the height of the plant, leaf size, and biomass. B. Materials and Equipment Materials 40 folder strips Garden soil (loam) 40 plastic cups Mung beans Cotton Tap water Urea Fertilizer Deep container Equipment: weighing scale 10 C. Experimental Set-up Table 1. Composition of the Different Samples D. COMPONENTS Mung bean (pcs.) SET-UP A 20 pcs. SET-UP B 20 pcs. Tap water (mL) 500 mL 500 mL Fertilizer (mL) 55 mL 55 mL Treatment Soil hydrophonics General Procedures Germination of seeds Before seeds were assigned in the hydroponics and soil set-up, they were germinated first. The seeds were placed in cotton soaked with tap water. The cotton with the seeds was set in a plastic container and the damp cotton was placed in an area where enough moisture is provided. It was located on an elevated place where it received sufficient amount of sunlight until leaves started appearing. The allotted time for the germination is three days. A number of 40 seeds were chosen randomly. Solution of seed samples The nutrient solution is the most important factor in the success or failure of a hydroponic system. Hydroponic plants receive nutrients from a different source that is why it is necessary to use a fertilizer for hydroponic planting. And throughout the experiment, it is to remember to follow the dilution rate recommended. The pH should be five or six. The nutrient solution was also changed every week. The main materials needed in the nutrient solution are water and a commercial fertilizer. The fertilizer used was Urea. The ratio of the fertilizer and water is 1:9. And it is an important factor not to overuse the nutrient solution for the plant to survive. 11 Preparation of set-up The 40 randomly selected seeds were assigned with 20 samples each for hydroponics and soil. Labels were also placed in each plastic cups in both set-ups. Garden soil, specifically loam soil, and plastic cups are the materials needed for the soil set-up. The soil was placed in the plastic cups with equal amount. Each plastic cup has a hole below. The Mung bean seeds germinated in cotton were then transferred in the plastic cup – one seed per cup. A folder strip was placed to keep track of changes and growth development. The other 20 Mung beans were placed in another cup with pebbles that serve as an anchor for the roots. The hydroponics set-up wouldn't be complete without the water. Monitoring of plant growth The growth of plant was monitored weekly for a month. The height of the Mung Bean was monitored by placing a cardboard or stick beside each mung bean. Heights are measured every end of week by placing a mark on the cardboard or stick. At the end of the month, the marked cardboard or stick was then measured using a ruler. The size of the biggest leaf was measured using the Vernier calliper while the biomass, mass of all mung bean plants, was weighed using a weighing scale. E. Statistical Tool The tool to be used to compare the mean of the two groups and determine whether they are statistically different is the t-test (Figure 2) since the number of samples per treatment is below 30. 12 where x= u= s= n= 13 Germination of seeds Preparation of set-ups Solution of Seed Samples Transfer germinated seeds to soil and hydroponics set-up Monitor plant growth Record observations Figure 2. Flow chart of The Experimental Procedure CHAPTER IV RESULTS AND DISCUSSIONS This study aims to compare the growth characteristics of Mung bean grown in two different set ups which are hydroponics and soil set-up. The samples in the different set-ups were monitored for it plant height weekly and leaf size and biomass at the end of a week. Comparisons were also conducted for the average growth of the forty Mung bean seedlings which were randomly selected. The computed mean values of the growth characteristics of Mung bean in hydroponics and soil for a month are shown in Table 2. Table 2. Mean Values of Growth Characteristics of Mung Bean in Hydroponics and Soil After a Month SET-UP GROWTH CHARACTERISTICS HYDROPONICS SOIL Height (cm) 28.48 28.14 Leaf Size (cm) 1.620 1.515 Biomass (g) 1.6345 1.6225 After four weeks, the average height, leaf size and biomass of mung beans exposed to hydroponics setup had better growth than those exposed to soil set-up as shown in Table 2. The difference in the growth is probable due to the presence of the nutrient solution in the hydroponic set-up. The nutrient solution is replenished weekly, hence the plants are provided with a constant supply of nutrients necessary for growth. While the plants in the soil set-up had to depend only on the nutrients already present in 15 the soil at the time that the Mung bean plants were planted. For further studies, this factor can be look into and controlled by supplying fresh supply of fertilizers even to the soil set-up. The difference in the growth characteristics are then verified whether there exist as statistical difference or not using the t-test. Results are shown in Table 3. Table 3. Interpretation of Statistical Test on Growth Characteristic GROWTH P-VALUE ALPHA INTERPRETATION CHARACTERISTIC There is not enough evidence to reject the claim that the mean Height 0.490 0.05 height of the Mung bean is equal. So, there is NO significant difference. There is enough evidence to reject the claim that the mean leaf size is Leaf size 0.0002 0.05 equal. So, there is a significant difference. There is not enough evidence to reject the claim that the mean Biomass 0.0609 0.05 weight is equal. So, there is NO significant difference. Table 3 shows the summary of t-test on the growth characteristics of the Mung beans exposed to hydroponics and soil set-up. Statistically, the mean leaf size of the Mung bean grown in hydroponics and soil has statistical difference since the computed pvalue = 0.0002 is less than the level of significance which is 0.05. While the height and biomass of the Mung bean have no significant difference because their p-values are greater than the alpha (α=0.05). This means that the height and biomass of the mung beans exposed in hydroponics and soil are statistically the same. However, the leaf sizes for both treatments significantly differ. Hence, it can be interpreted that mung beans exposed to hydroponics are significantly better that that exposed to soil treatment 16 particularly in leaf size. This is probably due to the constant change of fertilizer in the hydroponics as compared to soil set-up. The weekly growth rate in terms of height was then computed and compared for both set-ups. Results are shown in Table 5 and graphical representation illustrated in Figure 3. Table 5. Mean Values of Growth Rate (cm/day) on Mung Bean Plants PARAMETERS WEEKS HEIGHT (cm) GROWTH RATE (cm/day) Hydrophonics Soil Hydrophonics Soil Initial 11.47 11.21 3.823 3.735 week 1 17.87 17.46 2.553 1.494 week 2 20.22 20.00 1.444 1.428 week 3 25.16 25.01 1.198 1.191 week 4 28.48 28.14 1.017 1.005 During the germination period, initial reading, the growth rate of the Mung beans is numerically faster than the next weeks for both set-ups. But still the growth rate in hydroponics set-up is numerically better than soil set-up from germination until after a month. As the week progresses, the growth rate slows down because as a plant gets bigger, leaves are grown, hence it becomes harder for the plant to distribute the needed minerals for itself. Figure 3 shows the growth of Mung bean in hydroponics and in soil from the first week to the last week of experimentation. Height (in cm) 17 29.4775 27.4775 25.4775 23.4775 21.4775 19.4775 17.4775 15.4775 13.4775 11.4775 9.4775 Hydroponics Soil 1 2 3 4 5 Week Figure 3. Average Growth in Height of Mung bean in Hydroponics and Soil It is observed in Figure 3 that the average height of the Mung beans per week in the hydroponics (blue line) treatment is numerically taller than the soil set-up (red line). This means that hydroponics set-up is better than soil set-up. The difference in average growth in height is probably due to the more frequent change of fertilizer in hydroponics set-up than in soil set-up. Furthermore, this may be due to the weather that affected the amount of water absorbed by the plants in both treatments. The weather during the period of experimentation is sunny thus causing the water in the soil treatment to dry faster giving the plants lesser amount of water to absorb. In hydroponics, the Mung beans are already soaked in sufficient amount of water. According to studies, when the temperature is high, transpiration or the loss of water absorption in plants occurs. This may be the cause of the difference in the plant height. 18 Table 6. Interpretation of Statistical Test on Growth Rate GROWTH P-VALUE ALPHA INTERPRETATION CHARACTERISTIC There is not enough evidence to reject the claim that the mean Growth Rate 0.753 0.05 height of the Mung bean is equal. So, there is no significant difference. Table 6 shows the result of the statistical test on growth rate in terms of height of the Mung beans exposed to hydroponics and soil. Statistically, growth rate of the Mung bean has no significant difference because their p-values are greater than the alpha (α=0.05). This means that the weekly growth rate in terms of height of the mung beans exposed to hydroponics is statistically the same with that of the soil set-up. This means that growing plants in hydroponics are relatively the same with growing in soil. Hence, it is not a good reason for man not to grow plants due to lack of soil area since growing in water is a good substitute. CHAPTER V CONCLUSION AND RECOMMENDATION A. Summary This study aimed to make a comparison of the growth characteristics of forty Mung beans grown into two different set-ups namely hydroponics set-up which uses water instead of soil and the set-up that uses the conventional method which is the most common method of planting and makes use of soil. The Mung beans were first germinated for three days before transferring into the different set-ups. A statistical tool was used to determine whether or not the growth characteristics of the Mung bean in terms of plant height, leaf size and biomass have a significant difference if the Mung bean is planted in two different ways of planting. After four weeks, the average height, leaf size and biomass of mung beans exposed to hydroponics setup had better growth than those exposed to soil set-up. The difference in the growth is probable due to the presence of the nutrient solution in the hydroponic set-up. The nutrient solution is replenished weekly, hence the plants are provided with a constant supply of nutrients necessary for growth. Furthermore, the average height of the Mung beans per week in the hydroponics treatment is numerically taller than the soil set-up. This means that hydroponics set-up is better than soil set-up. 20 B. Conclusions Based on the gathered and observed data, after four weeks, the average height, leaf size and biomass of mung beans exposed to hydroponics setup were 28.48 cm, 1.620 cm and 1.6345 g, respectively: while that grown in soil set-up had 28.14 cm, 1.515 cm ang 1.6225 grams. This shows that mung beans exposed to hydroponics are numerically better than that exposed to soil set-up. There exists a significant difference in leaf size for both treatments. However, the height and biomass do not significant differ Furthermore, the growth rate of the Mung beans is numerically faster during the germination period than the next weeks for both set-ups. As the week progresses, the growth rate slows down because as a plant gets bigger, leaves are grown. Still the growth rate in hydroponics set-up is numerically better than soil set-up from germination until after a month. But there exists no significant differences in the growth rate of Mung bean in terms of height. C. Recommendations Despite having accepted and rejected the hypothesis, this research paper can still be improved if more growth characteristics were taken into consideration, such as height of roots. Moreover, we recommend the following: 1. Use another type of plant to experiment and use another medium. 2. Add other treatments on the plants. 3. Refresh fertilizer of soil sample at the same with that of hydroponics setup. 21 REFERENCES Books Hoobler, D. & T. (1975) House Plants. Published in US (p.17) Campbell N., Reece J.B, & Mitchell L.G (1999) Biology, Fifth Edition. Addison Wesley Longman, Inc. World History Micropedia, (1995) Published in USA, University of Oxford Dictionaries & Encyclopedia Doset and Baber (1993). In Webster’s Universal Unabridged Dictionary. American Encyclopedia (2005). In American Encyclopedia. Scholastic Library Publishing, Inc. (p.662) Grolier International Encyclopedia (1995) Grolier Inc. (p.343) Internet Sources Greentrees Hydroponics (2009). Hydroponics Gardening for Beginners. Retrieved August 2011, from website: http://www.hydroponics.net/ Gardening Tips Idea (2007). Advantages and Disadvantages of Hydroponics. Retrieved August 2011, from website: http://www.gardening-tipsidea.com/Advantages-and-Disadvantages-of-Hydroponics.html/ Stuart, G. (2004, February 20). Philippine Medical Plants. Retrieved August 2011, from website: http://www.stuartxchange.org/Balatong.html/ 77 Hydro (2000) Uses of Hydroponics. Hydroponics and Lighting Systems. Retrieved August 2011, from website: http://www.77hydrostore.com/usesof-hydroponics.html/ Unpublished Research Yu, M & Achacoso, M.V (2011). Growth Characteristics of Pechay (Brassica rapa) Grown in Soil and in Hydroponics 22 APPENDIX A DOCUMENTATION Figure # Preparation of Set-up Figure # Germination 23 Figure # Transplant of Mung Beans Figure # 24 APPENDIX B DATA GATHERED Table #. Raw Data of Plant Height in Hydrophonics Set-up PLANT # INITIAL WEEK 1 WEEK 2 WEEK 3 WEEK 4 1 12.3 19.1 21.3 26.2 32 2 12.1 18.8 21.1 25.7 29.7 3 12.1 18.8 21.1 25.7 30 4 12.3 19.1 21.3 25.9 32.3 5 11 17 19.8 24.9 28.4 6 11.3 17.3 20.3 25.4 28.7 7 11.2 17.3 20.3 25.4 28.7 8 11 17 19.8 24.9 26.7 9 10.7 16.3 19.3 24.1 26.4 10 10.8 16.5 19.6 24.9 27.9 11 10.9 16.5 19.3 24.4 26.7 12 10.7 16 18.8 24.1 26.4 13 12.1 18.8 20.3 25.4 28.7 14 11.8 18.5 20.3 25.7 28.4 15 11.5 18.3 20.3 25.7 28.4 16 11.2 17.8 20.3 25.4 28.7 17 11.6 18.5 19.8 24.1 26.2 18 11.5 18.5 19.8 24.4 26.9 19 11.7 18.8 20.8 25.4 29.2 20 11.6 18.5 20.8 25.4 29.2 Ave 11.47 17.87 20.22 25.155 28.48 25 Table #. Raw Data of Plant Height in Soil Set-up PLANT # INITIAL WEEK 1 WEEK 2 WEEK 3 WEEK 4 1 12.1 18 20.3 25.4 31 2 11.6 17.8 19.8 24.6 29.2 3 11.2 18 20.6 25.4 30.5 4 11.6 18.3 20.6 25.7 31.2 5 10.6 16.5 19.3 24.4 27.9 6 12.5 17.8 20.3 25.4 28.7 7 12.4 17.8 20.3 25.4 28.4 8 11.1 17 19.8 24.4 26.9 9 11.5 16.5 19.1 24.4 28.2 10 11.5 16.5 19.1 24.4 26.9 11 10.3 16 19.1 24.4 27.2 12 10.6 16 19.1 24.4 26.9 13 10.8 17.8 19.8 24.9 28.2 14 11.3 18.3 20.6 25.7 26.9 15 11.1 18 20.3 24.9 27.2 16 11.4 17.8 20.3 25.7 26.9 17 10 17.3 20.3 24.9 27.4 18 10.7 17.8 20.3 24.9 27.4 19 10.5 18 20.6 25.4 27.9 20 11.3 18 20.3 25.4 27.9 Ave 11.205 17.46 19.995 25.005 28.14 26 Table #. Height Difference (in cm) in Hydrophonics Set-up PLANT # A B C D E 1 6.8 2.2 4.9 5.8 19.7 2 6.7 2.3 4.6 4 17.6 3 6.7 2.3 4.6 4.3 17.9 4 6.8 2.2 4.6 6.4 20 5 6 2.8 5.1 3.5 17.4 6 6 3 5.1 3.3 17.4 7 6.1 3 5.1 3.3 17.5 8 6 2.8 5.1 1.8 15.7 9 5.6 3 5.3 2.3 15.7 10 5.7 3.1 5.3 3 17.1 11 5.6 2.8 5.1 2.3 15.8 12 5.3 2.8 5.3 2.3 15.7 13 6.7 1.5 5.1 3.3 16.6 14 6.7 1.8 5.4 2.7 16.6 15 6.8 2 5.4 2.7 16.9 16 6.6 2.5 5.1 3.3 17.5 17 6.9 1.3 4.3 2.1 14.6 18 7 1.3 4.6 2.5 15.4 19 7.1 2 4.6 3.8 17.5 20 6.9 2.3 4.6 3.8 17.6 Ave 6.4 2.35 4.96 3.325 17.01 Legend: A = week 1 – initial B = week 2 – week 1 C = week 3 – week 2 D = week 4 – week 3 E = week 4 - initial 27 Table #. Height Difference (in cm) in Soil Set-up PLANT # A B C D E 1 5.9 1.5 5.1 5.6 18.9 2 6.2 2 4.8 4.6 17.6 3 6.8 2.6 4.8 5.1 19.3 4 6.7 2.3 6.1 5.5 19.6 5 5.9 2.8 5.1 3.5 17.3 6 5.3 2.5 5.1 3.3 16.2 7 5.4 2.5 5.1 2.5 16 8 5.9 2.8 4.6 2.5 15.8 9 5 2.6 5.3 3.8 16.7 10 5 2.6 5.3 2.5 15.4 11 5.7 3.1 5.3 2.8 16.9 12 5.4 3.1 5.3 2.5 16.3 13 7 2 5.1 3.3 17.4 14 7 2.3 5.1 1.2 15.6 15 6.9 2.3 4.6 2.3 16.1 16 6.4 2.5 4.7 1.2 15.5 17 7.3 3 4.6 2.5 17.4 18 7.1 2.5 4.6 2.5 16.7 19 7.5 2.6 4.8 2.5 17.4 20 6.7 2.3 5.1 2.5 16.6 Ave 6.255 2.495 5.025 3.11 16.935 28 Table #. Raw Data of Leaf Size (in cm) PLANT HYDROPHONICS SOIL # 1 1.8 1.4 PLANT # 11 HYDROPHONICS SOIL 1.5 1.6 2 1.6 1.6 12 1.7 1.6 3 1.7 1.5 13 1.6 1.6 4 1.8 1.5 14 1.6 1.4 5 1.6 1.4 15 1.6 1.6 6 1.8 1.3 16 1.6 1.4 7 1.6 1.5 17 1.6 1.6 8 1.5 1.6 18 1.5 1.5 9 1.4 1.5 19 1.7 1.5 10 1.5 1.5 20 1.7 1.7 Ave 1.62 1.515 HYDROPHONICS SOIL 1.62 1.63 Table #. Raw Data of Biomass (in grams) PLANT HYDROPHONICS SOIL # 1 1.66 1.64 PLANT # 11 2 1.63 1.65 12 1.66 1.64 3 1.63 1.6 13 1.64 1.59 4 1.6 1.61 14 1.63 1.58 5 1.62 1.63 15 1.63 1.59 6 1.63 1.66 16 1.62 1.61 7 1.64 1.65 17 1.64 1.64 8 1.63 1.63 18 1.64 1.63 9 1.65 1.62 19 1.63 1.61 10 1.65 1.61 20 1.64 1.63 Ave 1.6345 1.6225 29 APPENDIX C STATISTICAL TEST RESULTS Table #. Result for Height t-Test: Two-Sample Assuming Equal Variances Equal Sample Sizes 0.05 Data1 Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T<=t) one-tail T Critical one-tail P(T<=t) two-tail T Critical Two-tail Accept Null Hypothesis because p > 0.05 (Means are the same) Data2 20.42 20.875 42.28231 38.31602 5 5 40.29917 0 8 -0.113 0.256 1.860 0.490 2.306 Table # Result for Leaf Size t-Test: Two-Sample Assuming Equal Variances Equal Sample Sizes 0.05 H Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T<=t) one-tail T Critical one-tail P(T<=t) two-tail T Critical Two-tail Reject Null Hypothesis because p < 0.05 (Means are Different) S 1.62 0.012211 20 0.010987 0 38 3.168 0.001 1.686 0.002 2.024 1.515 0.009763 20 30 Table # Result for Biomass t-Test: Two-Sample Assuming Equal Variances Equal Sample Sizes 0.05 Data1 Data2 Mean 1.6345 1.6225 Variance 0.000205 0.000483 Observations 20 20 Pooled Variance 0.000344 Hypothesized Mean Difference 0 Df 38 t Stat 2.046 P(T<=t) one-tail 0.0305 T Critical one-tail 1.686 P(T<=t) two-tail 0.0609 T Critical Two-tail 2.024 Accept Null Hypothesis because p > 0.05 (Means are the same) Table #. Result for Growth Rate t-Test: Two-Sample Assuming Equal Variances Equal Sample Sizes 0.05 Data1 Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T<=t) one-tail T Critical one-tail P(T<=t) two-tail T Critical Two-tail Accept Null Hypothesis because p > 0.05 (Means are the same) Data2 2.007 1.7706 1.386881 1.243707 5 5 1.315294 0 8 0.326 0.376 1.860 0.753 2.306 31 CURRICULUM VITAE Name: Nicole Salingay Badelles Nickname: Nica, Yen Date of Birth: November 26, 1996 Place of Birth: Iligan City Home Adress: Blk. 9 lot 16, Dona Maria Subd. Ph IV, Bara-as Iligan City Father’s Name: Dave Dominic dela Cruz Badelles Occupation: Businessman Mother’s Name: Cherry Salingay Badelles Occupation: Overseas Filipino Worker Brother’s Name: Nicco Salingay Badelles Sister’s Names: Cheque Mae Salingay Badelles Educational Background: Elementary: Youngster Christian Learning Place High school: MSU- Iligan Institute of Technology, Integrated Developmental School 32 CURRICULUM VITAE Name: Eurika Cantago Adrivan Nickname: Eur, Ikay Date of Birth: September 12, 1995 Place of Birth: Iligan City Home Adress: #13, White Plains St., Bgy San Miguel, Iligan City Father’s Name: Teofilo C. Adrivan Occupation: Instructor Mother’s Name: Cristina C. Adrivan Occupation: Housewife Brother’s Name: Roy Venzon C. Adrivan Kriz Kevin C. Adrivan Rex Prosper C. Adrivan Gustav Cyril C. Adrivan Van Leo C. Adrivan Educational Background: Elementary: La Salle Academy High school: MSU- Iligan Institute of Technology, Integrated Developmental School