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The Effect of Different Hydroponic Treatments on the Average Growth Length of Zea mays Seeds
The Effect of Different Hydroponic Treatments on the Average Growth Length of Zea mays SeedsByChristopher Harness - SHHSSad Lemons - SHHS
2The Future of GardeningLimited room for space travel
Soil to be unknown on different planets or non-arable
High crop yield is necessary for long time period
http://www.treehugger.com/green-food/omega-hydroponic-garden-gets-five-times-as-much-food-per-watt.html
3Nutrition AwarenessHumans suffer in malnutrition due to:Poverty or certain living conditionsLack of knowledge in contents that are essential (Potassium, Vitamin A, etc.)
http://nutsci.org/2014/01/17/population-proportion-below-micronutrient-dris/
What?: Altering growth method of Zea mays crops in hydroponics system.
How?: By creating chemically altered solutions and using different light sources.
Why?: To observe changes in plant growth/identify effects of potassium intake. 4Purpose of Experiment
HydroponicsPros and Cons
Importance of NutrientsPotassium
The Zea mays plant
Photosynthesis and Wavelengths5Concepts to Know
6HydroponicsGrowth of plants in a soilless environment
Requires minimal space
More controlled than average soil-grown plants
http://www.backyardhomesteader.com/wp-content/uploads/2012/02/hydro-02.jpg
HydroponicsProsReduced laborNo weedsShorter growth timeHigher crop yieldUp to 50% more vitamin contentConsConstant monitoringPossible system failuresFloodingExpensiveCostEnergy
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8Importance of Potassium (K)Source of electrolytes for bodyUsed for:Protein SynthesisRegulation of H20 and CO2The second element needed for growth and reproduction of plants
http://www.buzzle.com/articles/potassium-deficiency-symptoms-in-humans.html
9The Zea mays CropCommonly known as corn
Requires a high nitrogen intake
Takes 2 mo.+ to grow/matureUp to 3-4 m tall
http://sekapporchard.com/wp-content/uploads/2012/07/fresh-sweet-corn1-800x600.jpg
10PhotosynthesisConversion of light energy to chemical energy in plants
6CO2+ 6H2O --> C6H12O6+ 6O2
Certain pigments benefit to certain wavelengths (ex: Chlorophylls absorb lower wavelengths)
http://www2.estrellamountain.edu/faculty/farabee/biobk/pigment.gif
Under the effects of a nutrient solution and chemically-deficient nutrient solution along with the aid of two different types of light, what condition will Zea mays plants grow best in when using a modified hydroponics setup?11Problem Statement
If the plants are grown under the effects of the growth lights and the full nutrient solution, then they will contain the tallest height average out of all four groups over the course of three weeks.12Hypothesis
13Group ClassificationZea mays GroupsPotassium-Deficient SolutionFull-Nutrient SolutionPlant LightNatural LightNatural LightPlant LightGroup 1Group 2Group 3Group 4
Solution pH LevelsPotassium-DeficientFull-NutrientpH Level6.56
Lux AmountsGroup #Lux1685.22590.63620.44668.7
14Materials: Creating the SolutionspH TesterBeakerFloraBlendFloraBloomFloraKleenConcentrated EnhancerRoot EnhancerFloraMicroFloraGroKoolBloom
15Procedure: Creating the SolutionsNutrient SolutionMaterialAmount per Barrel (mL)Rooting Enhancer7.425Concentrated Enhancer7.425FloraBloom29.698FloraMicro118.794FloraGro (Barrel 1)59.397FloraGro (Barrel 2)148.492FloraBlend80.000
Measure out specific materials in beaker
Pour materials into designated barrel
Record pH levels
16Materials: Creating the Ebb/Flow System
3.048 m PVC PipesDrainage tube w/ connecter Pump timer w/ multi-outletBarrel w/ SolutionChainsPump w/ TubingLight fixture w/ Plant BulbLight timer w/ multi-outletExtension Cord
17Procedure: Creating the Ebb/Flow System
18Materials: Planting
Plastic Bottle with holesPaper towel w/ Germinated SeedsMeter StickSpray BottleTI NspirePea PebblesZiploc Bag
19Procedure: Planting
20ResultsPlant Length (cm)Potassium Deficient SolutionFull Nutrient SolutionPlant LightStandard LightStandard LightPlant LightBeforeAfterBeforeAfterBeforeAfterBeforeAfterAVG:0.262515.7625AVG:0.17517.9875AVG:1.47517.025AVG:0.0759.525
Percent Change (%)Group 1Group 2Group 3 Group 4Average37.5243106.39315.063812.0938
21Observations
October 26th, 2014
November 3rd, 2014November 10th, 2014
22Statistics
Change in Height for Group 2Change in Height for Group 4stdDevmeanmedianstdDevmeanmedian
The hypothesis was:
Potassium-deficient group growing under sunlight, Group 2, faired the highest average height of 17.9875 cmThis evidence is supported by descriptive analysis
23ConclusionRejected
24ErrorsErrors:Design: Low variability, seed burialHuman: Initial seed treatment Natural: Flooding, tipping, power out, daylight savingsImprovements:Larger sample size Equal seed depthMore secure systemLonger trial timesSeason time
Purpose: To determine the best growing situation for Zea mays crops using light and nutrient solutions w/ varied amounts of potassium
Hypothesis: Rejected
Results: Group 2 had the highest height average of 17.9875 cm
25Recap
26Going FurtherDesign:Different nutrientsDifferent wavelengthsDifferent plantsBenefits:Importance of hydroponicsDevelops new solution mixture
http://blog.fullbloomhydroponics.net/wp-content/uploads/2012/07/hydroponic1-1024x768.png
27Hydroponics in the Real WorldHydroponics is the current method for agriculture in space, according to NASA
Compact greenhouses benefit from hydroponics systems for high crop yields
http://www.nasa.gov/images/content/138008main_jsc2005e43267_hi.jpg
ThanksMr. Estapa Prof. Egilla Mrs. Gravel Mr. Supal Mr. Acre and Mrs. Tallman The Harness and Lemons families28Acknowledgements
Brown, James W. Light in the Greenhouse: How much is Enough? Crop King Inc. Copyright 1995-2013. Web. 2 December 2014. .Cakmak, Ismail. "The Role of Potassium in Alleviating Detrimental Effects of Abiotic Stresses in Plants."Journal of Plant Nutrition and Soil Science168.4 (2005): 521-30. Sabanci University, 3 June 2005. Web. 14 Nov. 2014. .Chiappinelli, Kate, and Cynthia Collier. "Hydroponics Vs. Soil."Hydroponics Vs. Soil. Sidwell Friends School, n.d. Web. 26 Sept. 2014. .Colorado Master Gardener Program. "Plant Growth Factors: Photosynthesis, Respiration, and Transpiration."Plant Growth Factors: Photosynthesis, Respiration, and Transpiration. Yard and Garden Publications, Aug. 2010. Web. 02 Oct. 2014. .Egilla, Johnathan. Suggestions on a Hydroponics Research Experiment. Message to Authors. 9 September 2014. E-mail.Gmez, Fernando and Libia I. Trejo-Tllez. Nutrient Solutions for Hydroponic Systems. Intech. Web. 2012. .Greentrees Hydroponics. "Hydroponic Gardening for Beginners - Greentrees Hydroponics."Hydroponic Gardening for Beginners - Greentrees Hydroponics. Greentrees Hydroponics, 2014. Web. 29 Sept. 2014. .Haas, Elison M. Role of Potassium in Maintaining Health. Periodic Paralysis International. Web. 17 July 2011. .Hamaker, Kiri, and Suomalainen Yhteiskoulu. "The Effect of Different Colors of Light on the Growth of Young The Effect of Different Colors of Light on the Growth of Young."The Effect of Different Colors of Light on the Growth of Young Specimens of the Helianthus Annus (Sunflower)(n.d.): 1-23.Aka.fi. Web. 6 Oct. 2014. .Heiney, Anna. Farming for the Future. NASA. Web. 27 August 2004. .Hightower, Corbyn Hanson. Hydroponics Vs. Soil: Which is Faster? Education.com. Copyright 2006-2014. Web. 2 December 2014. .Jones, J. B., Jr. "Hydroponics A Practical Guide for the Soilless Grower."Google Books. CRC Press, 2005. Web. 17 Sept. 2014.."Light Absorption for Photosynthesis."Light Absorption for Photosynthesis. N.p., n.d. Web. 04 Oct. 2014. ."Potassium in Plants."SMART! Growing Intelligently. N.p., 2013. Web. 03 Dec. 2014. .Quarters, Cindy. Hydroponic Nutrients Vs. Soil Nutrients. Demand Media. Copyright 2014. Web. 1 December 2014. .ScienceDaily. Cotyledon Definition. ScienceDaily. Copyright 2014. Web. 3 December 2014. .South Dakota State. Common Nutrient Deficiency Symptoms in Corn. South Dakota State University. Copyright 2014. Web. 2 December 2014. .Turner, Bambi. "HowStuffWorks "How Hydroponics Works""HowStuffWorks. N.p., n.d. Web. 20 Sept. 2014. .Vorland, Colby. Population proportion below micronutrient DRIs. Dietary Guidelines. Web. 17 January 2014. .
29Works Cited
Alter, Lloyd. Omega Hydroponic Garden Gets Five Times As Much Food Per Watt. Treehugger. 22 September 2009. Web. 18 December 2014. .Hydroponic Harvest. Backyard Homesteader. Copyright 2014. Web. 21 December 2014. .LED Grow Lights. Wavelengths in LED Plant Grow Lights. LED Grow Lights. Copyright 2012. Web. 29 December 2014. .R, Aarti. Potassium Deficiency Symptoms in Humans. Buzzle. 8 December 2011. Web. 15 December 2014. .Reynolds, Chris. Soil vs Hydroponics: Which Offers The Largest Yield? Fullbloom Hydroponics. 12 July 2012. Web. 1 January 2015. .Stromberg, Joseph. Is Martian Soil Good for Farming? Vox. 20 September 2014. Web. 1 January 2015. .Sweet Corn. Sekapp Orchards. Copyright 2014. Web. 20 December 2014. .Vorland, Colby. Population proportion below micronutrient DRIs. Dietary Guidelines. Web. 17 January 2014. .30Image Sources
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QUESTIONS?
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