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Effects of gibberellic acid on brassica rapa plants
Gibberellic acid and how it impacts the plants growth
Effects of gibberellic acid on brassica rapa plants
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The combined influence of gibberellic acid and amount of sunlight plays an important role in the development of plants. This study is aimed at the model effectiveness evaluation concerning the speed of development of wild type and Rosette Dwarf flowers. The group of flowers were divided into 4 different categories; wild type plants were split into the controlled and experimental group, and the same was done for Rosette Dwarf. The subgroups were formed based on what growth hormone each plant received or didn’t receive. Then the plants were measured each week by how high they grew, and the amount of flowers opened. During the controlled examination, both flowers received extra water, which made up for the amount of water in the gibberellic acid, which was given to the experimental group. After collecting data, the controlled examination allowed us to determine the full effect …show more content…
There were many physical differences between the mutant fast plant and the wild type fast plants. As shown on the graph above, the wild type plants grew bigger and fast tean the mutants. Along with height, the wild type fast plants opened more flowers. For the experimental group, we applied the gibberellic acid on the intersection of the leaves and stems. For the controlled group, the plants had received more water to balance out the amount water given to the experimental group, which was in the acid. We specifically used gibberellic acid to show an increase in plant growth, measuring in centimeters. What surprised us most is that the GA did not have an effect on the Rosette Dwarf plants until week 3. There was an increase of growth towards the end, which raises the question as to why. Why did it take so long? How much time does it take for the gibberellic acid to kick in and affect cell division? It allows us to raise more questions and continue with our
This experiment was performed to test two hypotheses concerning the plant hormone gibberellic acid and a mutant rosette shaped phenotype of the plant Brassica rapa. This experiment was done in order to test the effects o gibberellic acid on plants and its effect on rosette shaped complexes. The two hypotheses in this experiment are as follows: Hypothesis number one states that Gibberellic acid allows for stem elongation in plants. Hypothesis number two. The rosette complex in the rosette phenotype plant contains less gibberellic acid naturally and therefore grows shorter.
Although, this experiment is not concluded outdoors, it is provided with efficient light that promotes growth. It’s provided with soil, seed, fertilizer, water and NaCl solutions, to test how salinity effects plant growth.
Lauffer, H. B., Williams, P., & Lauffer, D. (2012). Wisconsin Fast Plants® Program. Retrieved February 26, 2014, from http://www.fastplants.org
We used wheatgrass were 40 wheatgrass seeds, two empty pots, soil, and water. We first added soil for both pots and 20 wheatgrass seeds in each pot. My partner and I decided that we label pot one experiment which is “sugar and water” and pot two control which is “water” only. The experiment was for almost four weeks we had to make sure both get the same room temperature and water, so we can see the results after this amount of time. Both pots had same room temperature so both can have the same amount of sunlight also, the same amount of water which is a glass of water from the sink once a week. In the experiment pot we added a glass of water with one teaspoon of sugar and the control pot glass of water. Every week we used to see both pots grow almost the same. At the end of the experiment, my partner and I measured the length for both plants and we recorded the average for each plant, so we can know the rate of growth
The purpose of our experiment was to test whether or not the Wisconsin Fast Plants, or Brassica rapa, followed the Mendelian genetics and its law of inheritance. First, after we crossed the heterozygous F1 generation, we created an F2 generation which we used to analyze. After analyzing our results, we conducted a chi-square test for for both the F1 and F2 generations to test their “goodness of fit”. For the F1 generation we calculated an x2 value of 6.97, which was greater than the value on the chi-square table at a p-value of 0.05 and 1 degree of freedom (6.97 > 3.84). This meant that we had to reject our hypothesis that stated there would be no difference between the observed and expected values. This showed us that the F1
The “Fast Plant” experiment is an observation of a plants growth over the span of twenty-eight days. The objective is to observe how plants grow and use their resources throughout the span of their life. In our lab we observed the Brassica rapa, a herbaceous plant in the mustard family which has a short cycle which makes it a perfect plant to observe in this experiment. Like other plants the Brassica rapa must use the resources in the environment to create energy to complete itʻs life cycle and reproduce. By observing the plant it is easy to see in what organ or function the plant is using itʻs energy and resources and if overtime the resources switch to other part of the plants. By conducting this experiment we are able to observe where and how plants allocate their resources throughout their life by harvesting plants at different points in their life.
Tacitus is considered by many to be the greatest Roman historians to ever live. Clearly his knowledge and skills are fully demonstrated in his writings Agricola and Germania. Tacitus captures his readers attention witnessing different ethnic groups and there various customs from each other. Agricola focusses on Tacitus father in-law Julius Agricola. Because of Agricola Tacitus saw ethnography on the many people of the ancient Britain. In Germania Tacitus writes about the different Germanic groups of the time. Tacitus in both of his writings portrays the cultures, traditions, and establishments of many different ethnic groups. Cornelius Tacitus was born 56 AD in southern Gaul which is now modern Providence. In 75 AD he moved to Rome and became an orator. A year later he married the daughter of the consul Cn. Julius Agricola. Tacitus is best known writings included Agricola (97-98), Germania (98), The Histories (110), and The Annals. Harold Mattingly (1884-1964) translated Agricola and Germania. J.B. Rivers published his translation, with introduction, and commentary of Germania in 1999. How does reading Tacitus’s Agricola and Germania help provide a better understanding to classical Rome? Through Tacitus’s writings we can pick out important parts of
Alice Walker’s “Roselily”, when first read considered why she decided to use third person. Especially when the story is in such a private line of thought, but then after my second time reading the story I decided that Roselily would not be a strong enough woman to speak about the social injustices that have happened to her. One key part of the story is her new life she will be facing after she is married in Chicago, while comparing it with her old life she is leaving in Mississippi. In Chicago she will no longer have a job, but instead be a homemaker where she will be responsible for the children and home. Also, in Chicago she will become a Muslim because it is what her new husband will want her to be, but back in Mississippi she was of the Christian faith. One of the more positive outcomes of her marriage is that she will go from extreme poverty, to not having to worry about money on a day to day basis.
"Briar Rose," written by Jane Yolen, is a heart wrenching story of Sleeping Beauty intertwined with the evils of World War II. Yolen has taken the story of Briar Rose (Sleeping Beauty) and developed two parallel stories. Becca is the granddaughter of Gemma, soon to be found out as Briar Rose. Becca promises her grandmother, Gemma, to find out the truth about her. Through the help of Stan, and Josef, Becca finds out the truth: her grandmother had survived an extermination camp at Chelmno, and afterwards with the partisans. The enormous amount of deaths and genocides can sometimes be very hard to grasp when it is simply another page in your history textbooks. However, this novel helps give a tangible perspective of such madness and atrocity through a fairytale lens. It also allows us to contemplate and remember an unconscionably dark chapter of human history. Briar Rose is an interesting book that connotes realism, optimism, and a sense of mystery in the timeless fairy tale ending, "and they lived happily ever after."
Thomas R. Warne, Leslie G. Hickok and Rodney J. Scott. (1988). Botanical Journal of the Linnean Society. Characterization and genetic analysis of antheridiogen-insensitive mutants in the fern Ceratopteris. 96 (1), 371-379.
the effect light has on the growth of pea plants. It will take place in an environment with controlled light, with equal amounts of plants being grown in the light and in the dark. All elements of the experiment other than light will be kept the same, such as amount of seeds in each pot, amount of soil in each pot and amount of water given to each plant each day. This will ensure a fair experiment. Prediction: I predict that in general, the plants grown in the light will grow better than those grown in the dark.
The cultures were maintained at 25±20C under 16 hr illumination of 4000 lux intensity. The results are presented in Table 1, it can be seen from the data that pH of the medium had significant effect not only on regeneration frequency but also on number of shoots developed in each culture. Maximum 62.5±4.7 percent cultures in CoS 98259 and 67.3±4.9 percent in CoS 767 developed shoots at pH 6.0 while regeneration frequency was the lowest at pH 5.6. An increase in pH form 6.0 to 6.2 and 6.4 reduced the frequency of shoot regeneration from the callus (Table
In numerous science classes students experiment with artificial selection by growing fast plants. Fast plants are a type of crucifer plant (group of plants including mustard, radish, cabbage, and more) that have been through
For many years, nature has cloned organisms. When a plant sends out a stalk and it takes root, the new ...
Tissue culture allows for the growth of a plant without the use of seeds or pollination.