ipl-logo

Duckweed Lab Report

1046 Words5 Pages

Duckweed ORT. Dylan Nourse
INTRODUCTION
Duckweed is a water plant that grows and floats above or just below the surface of fresh slow moving water and is part of the Araceae family and reproduces through asexual budding.

https://www.google.co.za/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi_iYb6_N7KAhUCVRoKHfuLCI8QjRwIBw&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FLemnoideae&psig=AFQjCNG2Wp--o1fDzKIxttYu1l2RviaseQ&ust=1454705086728161
Hypothesis: Duckweed grows best in water with a pH similar to drinking water.
Aim: To test the best water conditions that duckweed grows in. Duckweed usually grows best in fresh water. I will be testing which pH level duckweed grows best, in order to determine whether or not duckweed …show more content…

I will be testing to see if this is true, whether or not there are any indications (on/from the plant) that state otherwise, and if so, what these are in order to warn those who seek to drink the …show more content…

“Wolffia : pH 4-5;0-10”
2. “Lemna : pH 4-6;2-10”
3. “Spirodela : pH 3-7;0-10”
Certain elements such as the 2nd degree equation and the 5th degree equation are needed in order to describe the rate of growth of the different species of duck weed along the pH gradient http://www.researchgate.net/publication/234009001_the_effect_of_pH_on_the_population_growth_of_species_of_duckweed_Spirodela_oligorrhiza_LLemna_minor_and_Wolffia_arrhiza Source 2 : Lemna (Duckweed) as an indicator of water pollution. I. The Sensitivity of Lemna paucicostata to heavy metals. There are many different plant and animal species that change their appearance when there may be the presence of a substance that causes pollution. These are known as indicator species. Many different land plants are used to indicate are used all over the world as indicators for identifying air pollution. Algae, insects, shells and fish are all used as indicator species to determine the pollution in water. These are used to measure the levels of pollution in the water. The optimum temperature and pH for duckweed to grow in which it can still detect and indicate the presence of heavy metals is 25 degrees and a pH of 6.1 – 7.1

Show More
Related

Conodoguinet Creek Lab Report

727 Words | 3 Pages

Some of our results for the Dissolved Oxygen tests were 12, 11, 8, and 7. Those were the results of our teams Eutrophication

Read More

Observation In Burns Bog And Watershed Park

783 Words | 4 Pages

As water contains hydrogen ions, it has a scale of acidity. Life can be maintained in pH levels between 6.5 and 8.5 (Ecoscope: For Sustaining Wetlands). If the concentration of hydrogen ions becomes too great or too small, it becomes difficult for the plant to survive. Photosynthesis uses hydrogen ions which changes the pH level of the soil. In Burns Bog, there is mostly peat and therefore, the soils can survive higher acidic measures.

Read More

Conodoguinet Creek Pollution

1455 Words | 6 Pages

phosphates and nitrates ) - which is when fertilizers < such as those on farms > can seep through the soil or even run down the soil - called runoff - into the creek causing the water to have more nutrients than it should. ) Depending on how much pollution there is depends on how much algae there is ( the more eutrophication -there is the more nutrients in the water- results in how much algae there will be.) We were also testing on the pH scale ( which measures the acidity or alkalinity of water ) goes from 0 - 14 where 6 - 0 is higher acidity and 8 - 14 is higher alkalinity ( alkalinity is what neutralizes/destroys acid. ) 7 on the pH scale is neutral and that is the ideal water for the ecosystem. The pollution that we were testing for is where the acid came from to begin with.

Read More

Edta Lab Report

490 Words | 2 Pages

This then resulted in a change of color for the indicator. Similarly Erio-Black T is also a good substance to use for testing the water samples in this experiment because it works as an indicator and changes from red then to purple and finally to blue around the pH range of 7-11. In addition, we used a pH 10 buffer to ensure that the

Read More

Hydrilla Research Paper

345 Words | 2 Pages

A hydrilla grows a long steam that has many leaves on it as well as tiny white flowers on them which float above the water. They are an aquatic plant which means they live in water such as clean water, including lakes, ponds, rivers, streams, and marshes. Seen mostly in the Southeast of Florida and in their habitat they form dense mats of vegetation, can grow with little light, and more efficent in taking nutrients than other species. Florida faces many problems within their water bodies and waterways. The aquatic plants pollute 96% of the public lakes and rivers.

Read More

Analysis Of Milkweed By Jerry Spinelli

219 Words | 1 Pages

Milkweed was a book writen by Jerry Spinelli it was about a boy who went throu gh a lot from being a Jew, and tells us how he survives thorugh the Halo caust in Warsaw, Poland. When Misha was a young boy he didn’t have a set name he was living on the streets of warsaw he had to take care of himself. Warsaw, Poland was a high populated Jewish part of Europe over 350,000 Jews that’s over 30% of the poplation. The Germans put a lot of Jews in Conesentration Camps so they can work them and kill them because they ddin’t see them as a normal person. There was another place the Germans put the Jews the Ghetto they built a big wall so they cpuld not get out or anything like that.

Read More

Blue Heron Lab Report

275 Words | 2 Pages

Modeling predation Yeling Partner: Tobi Environmental science Mrs. Eckman Oct. 25 2015 Introduction: Objective: Through this lab we will know how do changes in environment factors affect the predation habits of the blue heron. Hypothesis: Environment factors will affect the predation habits of blue heron. Where has more fish, they will go where. Materials: 21*27 cm^2 grid paper 400 uncooked rice grains

Read More

Lab Report Duckweed

875 Words | 4 Pages

Our goal was to see if plants can grow with high or low levels of pH added to the pond water it was previously in. This experiment was to see if duckweed could grow in other conditions, and see if it would thrive or die. The expectations are that most duckweed plants

Read More

Assabet River Lab Report

734 Words | 3 Pages

Introduction: The Assabet river is a well known river that runs through Westborough, Northborough, Marlborough, Berlin, Hudson, Stow, Maynard, Acton, and Concord, MA. The river is about 34 miles long and is home to many aquatic animals and plants. The plants range from Chiliensis to Anubias, and they grow around the borders of the river. The Assabet river has different water temperatures, depending on the location. The purpose of this lab is to determine whether or not the Assabet river temperature affect the plants near and in the river.

Read More

Milkweed Character Analysis

577 Words | 3 Pages

Sometimes the youngest people with the slightest amount of knowledge can be the significant role models to others. Jerry Spinelli openly displays this in the novel Milkweed by creating the protagonist, who happens to be one of the youngest characters in the novel, a character who creates some of the greatest impacts on others. Misha, an orphan has very little knowledge yet teaches those around him some of the wisest and most valuable things. Jerry spinelli truly exemplifies, People teach others so that others can teach people.

Read More

Review Of Jerry Spinelli's Milkweed

525 Words | 3 Pages

Imagine what it would be like to have to steal and run everyday just to survive at only eight years old. Milkweed by Jerry Spinelli, is a novel that tells the story of a young gypsy boy who gets stuck in the middle of WW2. He went through many struggles while trying to grow up on his own in the ghettos. This little boy looks up to the “Jackboots”. He wants to be a Jackboot, but little does he know the Jackboots are actually the horrible Nazi’s, will he ever realize that the Jackboots are bad people or will he continue wanting to be a “Jackboot”?

Read More

Fertilisers Effect On Duckweed

491 Words | 2 Pages

• Duckweed (Lemna minor) is a member of the Lemnaceae family (Monette et al. 2006) it is a small plant that floats on the surface of still or stagnant water that is usually rich in nutrients (Keddy 2010). It was seen that Duckweed thrived in areas of high nutrient content, high sunlight and warmer temperatures (Taylor 2011) .It was also seen that fertilisers contained nutrients, such as nitrates, which greatly influences duckweed growth. Duckweed is also used for feed for farm animal, such as ducks, and it is also used to reduce nutrients in eutrophic environments (Ansari and Khan 2008, 2009, 2011); therefore this experiment was done to determine the effects that high concentrations of fertilisers cause on Duckweed by repeatedly adding varying

Read More

Humbleweed Research Paper

915 Words | 4 Pages

Evaluation on Tumbleweed When going to a restaurant a smiling face, knowledgeable staff members, a clean space, and flavorful food is expected. This is obviously something that Tumbleweed in Seymour, Indiana does not aspire to do. Tumbleweed in Seymour, Indiana was one of the worst restaurants I have ever been to. My friends and I all decided to go eat at Tumbleweed one day and it was very unclean, and took a long time until we got our food, also the people who worked there were not very kind.

Read More

Algae Growth Lab Report

843 Words | 4 Pages

The purpose of this lab was to test the effect of pollution on algae growth. Through a series of experiments that lasted a month, four of the six hypotheses were proven to be correct or partially correct. The first hypothesis stated that if 0.5 mL of salt was added to algae, then the algae would grow slower than the positive control. This was proven correct, as shown by the difference of the data from the positive control and the container with 0.5 mL of salt in it.

Read More

Importance Of Plants Essay

2023 Words | 9 Pages

Introduction Plants are a major necessity in the balance of nature, people’s lives, and our terrain. We may not realize it, but plants are the ultimate source of food for almost 95% of the world population so says the National Group of Food. It’s a fact that over 7,000 species of plants are being consumed today. Plants are one of the reasons that we get clean water; as they help regulate the water cycle.

Read More

More about Duckweed Lab Report

Related Topics

Open Document