Effect Of Eutrophication On Plant Growth (Duckweed)

950 words - 4 pages

Biology Practical AssignmentName of Investigation:Effect of Eutrophication on Plant GrowthResearch Question:How does the process of Eutrophication affect the growth of Duckweed?Hypothesis:In this experiment, we are basically testing the use of different fertilizers on the growth of Duckweeds. Plants need fertilizers for their growth and to increase the yield of crops. But, at the same time, it depends on which Fertilizer being used and in how much proportion. Does it have sufficient nutrients or excessive nutrients? These were the questions, which I asked myself and through some research, I was able to write my Hypothesis.According to me, at the beginning, the growth of the duckweeds would increase but slowly after 6-7 days, they would perish. Duckweeds are those types of plants that require fertilizers for the development of their roots, and Phosphorus fertilizers are the ones who have this ability. On the other hand, Nitrates or Nitrogen fertilizers in an excessive concentration would give an excessive amount of proteins to the duckweeds which would not be needed by them and hence concentrated nitrogen won't be that helpful for their growth. Tap Water would also be a good fertilizer for the duckweeds since it contains sufficient nutrients and hence would help in the growth of the plants.Reason for Hypothesis:As I mentioned on top, the plants would start to multiply as they have sufficient minerals for their growth and through constant sunlight, they would increase in numbers (except concentrated nitrates). Later on, they would slowly start to perish leaving a white color. This would happen because the plants must have used up all the minerals for a period of time, and hence due to fewer minerals they might have died. Overcrowding and the effect of Eutrophication (rapid growth) must have decreased their growth as well.Materials Required:9 Plastic ContainersLow and High concentration of NitratesLow and High concentration of PhosphatesTap Water90 DuckweedsMeasuring CylinderVariables Involved:
What will Change?

What will be kept the same?

What will be measured?

Type of Fertilizers
Concentration of Fertilizers
(Each plastic container would have a different type of fertilizer, in a different concentration)

Amount of Fertilizers
(These measures would vary from container to container but to get the most appropriate results, we are considering these factors being constant)

The increase or decrease in the number of duckweeds
(Our Aim is to measure the number of duckweeds and this is the only factor being measured every alternative day)

Method:Outline in steps how the test will be carried out, indicating how the control variables will be kept the same.First of all, we put 100ml of each fertilizer in different plastic containers-N1, N2, P1, P2, N1P1, N1P2, N2P1, N2P2, Water (Where 1 stands for low concentration and 2 stands for a higher concentration).By putting 10 duckweeds in each container, we let them expose to open...

Find Another Essay On Effect of Eutrophication on Plant Growth (Duckweed)

Effect of colours of plant growth

1297 words - 6 pages by the equation, rather the relationship between growth in height and the time in days. The R2 value for blue, red and control variable were all in the 0.99 range. This indicated that the growth of the plants was steady and any possible errors have not influenced the data. However, the low R2 value for yellow and green, in this case, does not mean errors, rather accuracy as it supports the theory on the effects of colours on plant growth

The Effects Of Hormones On Plant Growth

1894 words - 8 pages placed on the shoot apex, where primary growth in a plant occurs, of each "experimental" plant. This Giberellic acid solution contained the substance lanolin which should have no effect on the growth of the plant, but as a precaution to make sure our results are perfectly accurate, a sample of pure lanolin was added to the shoot apex of those plants within the "control" group. The height of the plants was then measured and recorded so as to

Effects of Eutrophication on Humans

637 words - 3 pages lakes in many countries, including Canada, that reducing phosphorous is the most inexpensive and efficient way to solving the Cyanobacterial blooms. Synthetic fertilizer applications and manure from cattle and hogs are some of the major contributors of phosphorus to Lake Winnipeg (Schindler 2011). Everyone can help decrease these detrimental effect on aquatic ecosystems, through Cyanobacterial blooms, by decreasing or eliminating their use of

Effect of acid rain on Pea growth

3366 words - 13 pages Untitled Effect of acid rain on Pea growth Background: Mostly everyone has heard about acid rain and knows it can cause damage to some extent. Normally rain water has a pH of 6.0. However acid rain is around 4.5 to 5.5. Acid has serious effects on plants and all sorts of things on earth. It can damage the roots of the plants causing stunted growth or even kill the plants. The main causes of acid rain are the release of

Geography's Effect on Growth of Civilization

1218 words - 5 pages Geography has the ability to make or break a civilization and decides how a civilization will interact with other civilizations. Civilizations grow because geography affects both their surroundings and how easily they can reach other peoples. Greece and the Islamic Empire are two great examples of how geography can affect a civilizations growth and interaction with other people. China, Rome and Mesopotamia are other examples with different ways

The Effect of Gibberellic Acid on a Plant's Growth

633 words - 3 pages applying the GA.Gibberellic acid has several important effects on plant: 1) stimulation the growth of fruits; 2) increase elongation of stems; 3) help seed germination (Purves, 2004). The lack of clear difference in height between rosette plants treated with GA and water has several possible explanations. Some errors might have been occurred in measuring the height of rosette mutant plant. The data obtained from seven lab groups could not be

Notes on chapters of Botany covering the topics: Multicellular Algae, Mosses/Ferns, Plants with Seeds, Seed Plant Reproduction, Plant Structure, and Control of Plant Growth/Development

4201 words - 17 pages of Auxin-Auxin is a hormone that can produce different effects on different plant tissues-[HIGH] stimulates elongation of stem cells and inhibits elongation of root cellsAuxin and Stem Growth-Causes the stem to grow toward light and away from the pull of gravity-Charles Darwin + other scientists-Moves away from light to shaded part of stem, causing elongation on a certain sideAuxin and Root Growth-Auxin causes the roots to grow away from light

Affect of gaseous ammonia and oxides of nitrogen on plant growth

1635 words - 7 pages )*.One important effect of nitrate upon the tonoplast membrane which may be relevant to possible detrimental effects of both wet and dry N deposition on plants is as follows: both cell and tonoplast membranes contain ATP dependent H+ pumps but the tonoplast pump is strongly inhibited by nitrate. If plants deposit extra protons in their vacuoles during normal cellular regulation, then a plant that experiences additional acidity and nitrate at the same

The effect of income inequality on economic growth

1479 words - 6 pages become the secret to growth. However, education is hardly accessible to everyone unless a society has a relatively even income distribution 2.Literature The issue I chose to deal with is quite controversial heaving in mind the different opinions of the economist in terms of the effect of the inequality on the economic growth. There have been plentiful arguments on all sides; that inequality does weaken economic growth, that inequality actually

Growth of Human Population and Its Effect on the Environment

1659 words - 7 pages sufficient to feed the growing population that relies on them, thus triggering famine, wars, migration or the over exploitation of resources.”(Gausset, Whyte, and Birch-Thomsen, p. 95) As to our own species we are depended upon our environment and the variables of sufficient hygiene, sanitation and medical care. Continued Population Growth If we continue with the population growth our environment that we depend on will become unchecked and

Effect of light intensity on rate of photosynthesis on elodea plant

4433 words - 18 pages (+/- 1 bubble) Controlled Variables: Controlled Variables Units Possible effect on results Amount of Water Milliliters (ml) If the amount of water is different from each plant, then the Temperature of Water Degree Celsius (°C) The temperature of the water must remain constant because it acts as a heat shield and if the temperature fluctuates, it affects the rate of photosynthesis Length of Plant Centimeters (cm) In order to

Similar Essays

The Effect Of Ph Of Water On Plant Growth

809 words - 4 pages affect plant growth including; “soil bacteria, nutrient leaching, nutrient availability, toxic elements, and soil structure” (http://pss.uvm.edu/ppp/pubs/oh34.htm). Most plants prefer soil to be slightly acidic, ranging from 5.5-7.0. As like most legumes, pisum sativum var. macrocarpon, also known as snow peas, prefer a soil pH range of 6.0-7.0. If the pH of the soil is slightly below neutral around 6.0, then the pea plant #2 will grow faster than the

The Effect Of The Environment On A Plant´S Growth

931 words - 4 pages temperatures reduce the growth rates of plants more than they reduce photosynthesis which increases the amount of carbohydrates stored in a plant. There are also many other factors which effect the growth of the plants, but the main factors are environment and temperature. Allelopathy is the word that refers to the positive and negative effects of one plant on another. The main factor that is affected by have one plant near another is growth. Like I said

Effect Of Compaction On Plant Growth And Nutrient Uptake

920 words - 4 pages phosphorous levels. This relationship is compared to the overall dried plant weight.The above graph illustrates how soil density has an influence on the overall weight of the plant specimen. It also demonstrates the amount of water the plant structure is able to store.Discussion/ConclusionThe experiment was unable to successfully demonstrate the effect soil compaction has on a plants growth and its ability to take up any nutrients that may be

The Effect Of Acid Rain On Plant Growth

669 words - 3 pages and the rain that falls usually has pH levels ranging in the fours. The acid cloud may produce rain, snow or another type of weather condition. At pH levels in the fours, threes or even lower, the acid can cause substantial damage to plant life and future growth. On the surface the effects may not be too evident but acid rain can do serious damage that is only noticeable in long run.Acid rain, acid fog, acid snow or any other form, can create an