Researchers Desk

I. Project Summary
Invasive species and climate change have both proven to be obstacles to the health of our regional ecosystems (Gian-Reto 2002). In the proposed study, we will be observing both above- and below-ground plant growth in order to draw a conclusion on whether increased growth of invasive species due to climate change will negatively affect native species. Invasive species can act as a fierce, uninhibited competitor to the native species and fight with them for space, nutrition, and other necessities. In the experimentation process, we will be growing a total of twenty-eight plants, fourteen Tussilago farfara and fourteen Lonicera maachii. These specific plants are both considered to be invasive species in the state of West Virginia (Batcher and Stiles 2000, Innes 2011). Seven plants of each species will be grown in an environment that maintains an average temperature of 21.1 C (or 70 F). The remaining seven plants of each species will be grown in an average temperature of 26.7 C (or 80 F). By the year 2100, it is expected that there will be an average temperature increase of 3 C (Boer, 2000). In our study we will be measuring a difference of 5.6 C because this experiment will be conducted in a short period of time, in contrast to the period of a century that the projected climate change is occurring over. The effect on overall plant health will be measured. These factors include root length, root biomass, stomatal density, amount of photosynthetic pigments, and rate of growth. The association between increased temperature and the growth of the plant, measured in height and dry mass, will give us insight on how climate change may affect the survival rate of invasive species in the region. Therefore, we will be able to predict the fitness of invasive species and use this to draw conclusions about how they may affect native species in the future.

II. Project Description
A. Introduction
In this study, two important problems are being addressed, climate change and invasive species. Over the past one hundred years, the Earth’s average temperature has increased by 0.6 C (Gian-Reto 2002). Although this data may not seem extreme, this is just an average across the entire Earth. Regional data has proven to be much more useful in determining what effect climate change has on species, due to the asymmetrical way that warming occurs (Gian-Reto 2002). Climate change is expected to facilitate many changes in biodiversity including changes in phenology, gene expression, species ranges, and interactions between species (Hellman et al. 2008). While it has been established that climate change will invariably cause resulting changes in ecosystems, but more research is necessary in order to visualize the long-term effects of climate change (Gian-Reto 2002).
In this study, we will be applying this information and exploring regional data by using plants that are invasive species in the state of West Virginia. It is important to provide a definition of the term “invasive species”, which we will define as a plant that has been introduced to the area relatively recently and causes discernable harm to some aspect of ecosystem or human health (Hellman et al. 2008). Many invasive plant species have characteristics that help them survive- and even thrive- in harsh environments, which is how they are able to spread so quickly. These characteristics may include low seed mass and quick germination time (Hellman et al. 2008). The importance behind using invasive species is that the presence of these species has been linked to widespread extinctions of native plants (Gurevitch 2004). In order to preserve the flora of West Virginia, it is important that ecologists understand the relationships between invasive and native species. This is an important relationship to be discerned because both invasive species and climate change may couple to cause devastating effects on native plant species.
At this point, there have been very few studies completed that have directly identified the consequences of climate change on invasive species survival in their nonnative habitat. In order to evaluate how the invasive species survive, we will be taking measurements daily. This will allow us to develop an understanding of their growth rates. The faster their growth rate is, the more likely that they will negatively affect native species by heavy competition for space and other resources. However, some publications have suggested that climate change is likely to favor invasive species (Hellman et al. 2008). In order for a species to become classified as invasive, it must have overcome a number of environmental obstacles in its new environment (Hellman et al. 2008). Due to this fact, it seems increasingly likely that these plants may be able to continue this process by being successful even in the face of global warming. Since there has been little to no solid evidence that climate change enhances the growth of invasive species, we are attempting to construct a new type of study in order to gather new information. We will attempt to build on past research studies in order to provide a more well-rounded understanding of how the invasive plant species Tussilago farfara and Lonicera maachii here in West Virginia react to increasing temperatures related to climate change. In this future, this research may assist in allowing us to design better plans for management of invasive species.
B. Background
1. Lonicera maachii
Lonicera maachii is an invasive species to the United States and is commonly called bush honeysuckle. This plant is a deciduous shrub with opposite, simple, entire leaves, brightly colored, showy petals, and red, fleshy berries (Batcher and Stiles 2000). They can grow anywhere from two to six meters tall and are upright and multi-stemmed (Batcher and Stiles 2000). As this species becomes increasingly more common in the eastern United States, it has been linked to decline of native plant communities. This includes reduced richness of ecosystems of native herbs as well as reduced rates of tree regeneration in successional forests (Batcher and Stiles 2000). The plant’s high rates of seed production and short-term viability of seeds are major contributors to its ability to take over established ecosystems (Batcher and Stiles 2000).
Lonicera maachii is native to China, Manchuria, and Korea and was introduced in Europe around 1887 (Batcher and Stiles 2000). It was introduced to North America soon after, around 1898 and is now reported to be found in 24 states in the eastern and central United States as well as parts of Canada (Batcher and Stiles 2000). The species’ native habitat is generally in forests where they live in association with large trees such as oak, elm, fir, and spruce trees (Batcher and Stiles 2000). Since L. maachii has made its way to North America, where it is an invasive species, they continue to be found in forests, but are also notably located in lakeside habitats as well as abandoned agricultural sites (Batcher and Stiles 2000). Additionally, they are aggressive weedy complexes that have been found to inhibit tree regeneration in forests that have been disturbed (Batcher and Stiles 2000). The successful restoration of these forests is being treated by this species, causing us to be able to classify L. maachii as an invasive species according to our previous definition.
These seeds germinate at around 4.4 C (or 40 F) over a period of three months in nature; however, in the greenhouse they have been found to germinate in a time period of just 18 days (Batcher and Stiles 2000). Since this is an invasive species that has proven to grow quickly, numerous methods have been used in attempt to control their growth. One process is controlled burning, which is annual burning of the top layer of shrubs and other material on the floor of forests (Batcher and Stiles 2000). This allows the invasive and damaging species to be killed, and this process may be repeated annually or even more often than that in order to continue to control growth (Batcher and Stiles 2000). Another growth control mechanism is mechanical control, including the grubbing or pulling of either seedlings or mature shrubs, repeatedly (Batcher and Stiles 2000). This utilizes the same ideas as above in order to keep growth controlled. The last factor that is known to help control the growth of L. maachii is the use of herbicides (Batcher and Stiles 2000).
2. Tussilago farfara
This plant is a rhizomatous perennial forb and is commonly known as coltsfoot (Innes 2011). The overall size of this plant ranges from two to twenty inches tall (Innes 2011). The leaves found on this plant are deciduous, long-petioled, and heart shaped (Innes 2011). There is flowering on this plant and the flowers mature before the leaves become present on the plant (Innes 2011). Just as it was seen with the Lonicera maachii, Tussilago farfara has also caused a decline in native plant species found not only in West Virginia but throughout the United States.
Its quick spread and its ability to cause problems for the area, is found in its ability to create a large abundance of seeds once the plant has matured. Particularly a single plant can produce up to 3,500 seeds once the plant fully matures at two years (Innes 2011). The seed production usually depends on the amount of flower heads and the overall temperature of the season. As for seed dispersal, the seed is easily spread through wind or water (Innes 2011). Another reason that contributes to its wide-spread is its ability to easily travel large distances with the wind, and in some cases a seed can travel as far as eight miles away from its parental plant (Innes 2011). When the seed itself comes to germination, this type of seed does not show dormancy and therefore germinate within the season that their seed was produced (Innes 2011).
In a laboratory setting, T. farfara has a high viability, however that may not be the case in the wild, as there is a decline in seed germination during cold temperatures or dry, acidic type soils (Innes 2011). In most cases this plant can germinate in a range of temperatures, amount of light, and various soil pH and moistures (Innes 2011). Its optimal germinating environment would be in temperatures ranging from 12.8 °C (or 55 °F) to 25 °C (or 77 °F), moisture heavy soils, an abundance of light, and a pH that falls between 4.5 and 6.5 (Innes 2011). There were slower germination rates if the pH was in the lower ranges, and there was no germination at all if the pH was lower than 3.5 (Innes 2011). It is also to note that germination will be slower if the plant is not in full light and there is shaded periods of time that the plant goes through, it was seen that in just 70% of daylight a mean dry weight of the plant was 8,770 mg compared to a study done in 10% of daylight that lead to a mean dry weight of the plant being 7mg (Innes 2011).
This plant is non-native to West Virginia; however, it is now a concern for the state as it is an invasive plant species. It is native to Europe, western Asia, and northwestern Africa, it was said to be brought to the United States in the 1840s for medical purposes (Innes 2011). By the 1920s the plant had spread and taken root within Canada (Innes 2011). In terms of its spread in the United States, it goes from Minnesota to Tennessee and upwards towards Maine (Innes 2011). This plant can be found in many different habitats, but they are all similar to its native location. Floodplain forests and woodland areas, especially around riverbanks and ponds, you can easily find this invasive species, it has even traveled to anthropogenically disturbed areas such as roadsides and ditches as well (Innes 2011). One common place in West Virginia that T. farfara can be found is along the New River Gorge National River (Innes 2011). This is a prime area as it is on the riverbank of a nice woody forest as it is common to be found in various hardwood forests (Innes 2011).
3. Temperature and Invasive Species
Both the Tussilago farfara and Lonicera maachii plants fall under explosive plants. Their growth rates are highly influenced by the prevailing environmentalconditions.The T. farfara and L. maachii plants can spread through wide areas because of their roots ability to traverse in a faster way. Research shows that during the month of May and June T. farfara seeds germinate within twenty-four hours (Innes 2011).However, the faster germination and growth only happens in uncrowded environments that are moist and conducive in all manner (Innes 2011).These species are mainly spread by humans who are carrying the seeds, whole plants or root pieces through pets, vehicles and transportation of goods, they are also spread naturally in their ecosystems by wind and other natural occurrences (Innes 2011). The invasive plants produce thousands of seeds which can lie dormant for years and germinate whenever the conditions become preferred. They caused harm to other plant species because of their abilities to reproduce rapidly, hence competing against the native vegetation(Tennessee Exotic Pest Plant Council 2009).
Temperature specifically, play an important role in enhancing explosiveness among invasive species. Explosiveness is the ability of the plant to grow rapidly in a way that threatens other species in the ecosystem. To begin with, T. farfara seemed to spread at a faster rate when exposed to temperatures which were high. When they are exposed to temperatures that fall between 26.7 C (or 80 F) to 37.8 C (or 100 F), the roots acquire nutrients from the soil in large quantities hence expanding at a faster rate. However, low temperatures of 21.1 C (or 70 F) and below limits the spreading of the vegetation (Lee 2002).
On the other hand, it is very different from the L. maackii species regarding how they react to high and low temperatures. This is because their roots become explosive specifically when the temperatures range between 21.1C downwards to -17.8 C (or 0 C). When the species is exposed to temperatures above 21.1 C, their roots are inhibited and grow at a slower pace. Therefore the L. maackii species is favored inmoist habitats which have temperatures less than 21.1 C(Mooney and Cleland 2001). In conclusion these findings depict that extremely high temperatures help the T. farfara species to spread faster whereas lower temperatures favor the growth and development of the L. maackii species. Another environmental factor that influences the explosive nature of the T. farfara and L. maackii plants is the humidity and moisture of the soil (Mooney and Cleland 2001). With high precipitation and moisture, the roots spread very fast, and the seeds are also able to remain viable for germination for an extended period of time (Mooney and Cleland 2001).
C. Objectives, Hypotheses, or Questions
Question 1. How does the rising average temperature from 21.1 °C to 26.7 °C affect the growth of invasive species in West Virginia, specifically Lonicera maackii and Tussilago farfara?
For this experiment, this is the general question that we are seeking answers for. There are two sub-questions, listed below, that incorporate more specificity into the experiment. In order to answer this question, we will be monitoring the growth of each plant on a daily basis in order to obtain a cumulative review of how they independently developed. Plants will be grown in two different temperatures, 21.1 °C and 26.7 °C, and then have their features compared. For this, we will be using both qualitative and quantitative data for our experiment. Qualitative data will be observations in plant color, stage of life, and relative healthiness. As well as quantitative data such as root length, root biomass, stomatal density, amount photosynthetic pigments and overall growth rate.
Question 2. Does an increase in temperature affect different species differently based on their native habitat or climate?
Monitoring the plants almost daily, we will be able to take measurements throughout the experiment to watch its overall growth rate. We will be able to compare the growth rates between the two treatment groups, for the specific plant, to observe if there was either a decline or an increase in its ability to grow. It is predicted that Lonicera maackii, will not be as successful growing in the higher temperature, as it has a preferred germination temperature at and around 4.4 °C (or 40 °F) (Batcher and Stiles 2000). Specifically, L. maackii was originally found in China, Manchuria, and Korea (Batcher and Stiles 2000). These three countries all have an average climate that fall between 22.5 °C and 25 °C (or 72.5 °F to 77 °F), so they are similar to West Virginia’s climate (Zhang et al. 2019). When compared to the other plant species we are observing, Tussilago farfara, its native habitat is found in Europe, western Asia, and Africa (Innes 2011). These areas have an average climate that fall between 16 °C and 26 °C (or 60.8 °F and 78.8 °F) which is a much larger range in temperatures, along with a much lower average temperature that also can reach higher than that of China, Manchuria, and Korea (Jury 2018). From this data we believe to see better growth with the T. farfara, as it is better adapted to various temperatures because its native climate has a larger range compared to the habitat that L. maackii is found in.
Question 3. Does an increase in average temperature affect plant growth differently in above ground structures, such as height or photosynthetic pigments found in their tissues, and below ground structures, such as root length?
By measuring different parts of the plants, mentioned above, we will be able to compare growth of different areas of plants. We will be measuring these factors in an environment that is simulated to show possible climate change in the future, as described thoroughly in previous sections. By measuring above ground height on a weekly basis, we will be able to construct data showing growth rate of the individual species throughout the length of the experiment. This will allow us to evaluate not only the final amount of growth experienced by the plants, but the increments of growth that they have experienced along the way. This will give us the ability to more accurately compare plant growth between species. Additionally, we will be measuring stomatal density once at the end of the experimentation process. By doing this we will be able to visualize the number of stomata the plants have and make observations based on the stomata’s gas exchange properties and its overall effect on the plant’s growth. Photosynthetic pigments, specifically chlorophyll a, chlorophyll b, and carotenoids will be observed to make conclusions on the plant’s ability to absorb various light waves and its ability to affect the plant’s growth. With increased pigment, this indicated increased fitness since this suggests that the plant is better suited for the environment and bale to perform more efficient photosynthesis. By measuring the roots at the end of the experiment, we will be able to compare root growth between environments to see if temperature affected the plant’s ability to reach various nutrients in the soil. Therefore, we may be able to demonstrate how global warming may change the growth of plant roots in the future. As previously discussed, we hypothesize that Tussilago farfara will exhibit higher levels of growth, making it better suited for a changing environment.
D. Research Plan
1. Experimental Design
The two factors to be studied over the duration of this experiment are species and soil temperature. The two temperatures being tested will be 21.1C and 26.7 C, which are the average summer temperatures in West Virginia, and the average global summer temperature predicted for the year 2100 respectively (Boer et al. 2000). The two species being studied during this experiment will be Lonicera maackii and Tussilago farfara, two invasive species that are found in West Virginia.
2. Methods
The seeds for Lonicera maackii and Tussilago farfara will be obtained from the Life Sciences Greenhouse here at WVU. The seeds will be planted in 28 4”x4”x5” planting pots with 5 seeds in each pot. There will be seven pots for each treatment combination, so seven replicates for each combination. Seven pots will have the L. maackii low temperature treatment, seven pots will have the L. maackii high temperature treatment, seven pots will have the T. farfara low temperature treatment, seven pots will have T. farfara high temperature treatment. The temperature treatment will be applied continuously throughout the experiment using heat mats supplied by the Life Sciences Greenhouse, but the plants will only be watered every other day. Plant height measurement will be taking every other day during watering so that a growth rate can be obtained. Root length and root dry mass will be obtained after the plants have been harvested at the end of the experiment and this will be done with a rule for the length, and paper bags, the Greenhouse oven, and scale to obtain a root dry mass. In order to get more data pertaining to plant growth rate, we will also obtain a photosynthetic pigment count using acetone, a centrifuge, and a spectrophotometer. We will also obtain a stomatal count as more data for growth rate, and this will be performed using the microscope.
3. Safety Precautions
A necessary safety precaution for this experiment is to carefully handle the heat mats as they may be hot enough to cause burns if handled incorrectly. Also, the acetone used in the procedure necessary to obtain photosynthetic pigment count needs to be handled with care as it can cause burns to the eyes or skin.
4. Statistical Analysis
To test the effects of temperature and species on invasive plant growth patterns, we will use a two-way ANOVA to analyze the data obtained from this experiment. We will use Microsoft Excel and SAS-JMP to analyze our data and get our statistical results from our experiment. We will be testing to see if there is a significant variation in the root length, root dry mass, growth rate, photosynthetic pigment count, and stomata count of these plants that varies due to species or temperature difference. For our statistical significance, an α-value of < 0.05 will be used.
Plant Species
Temperature Tussilago farfara Lonicera maachii
21.1 °C
(Today’s Average) n=7 n=7
26.7 °C
(Future Average) n=7 n=7

Figure 1: 2 x 2 Factorial Design. Two different invasive species, Tussilago farfara and Lonicera maachii, will be studied at two temperatures, the average climate today, 2019, and the predicted climate in the future, 2100. Seven replicates will be used for each combination of factors.
5. Research Schedule
Date Task Completed Group Member(s) Present
2/11/19 Experiment begins; 50 L. maackii seeds and 50 T. farfara seeds planted and placed into their treatment groups All
2/11/19 – 2/25/19 L. maackii and T. farfara seeds are watered and monitored every other day Alternating members
2/25/19 Both plants should be successfully germinated Alternating members
2/25/19 – 4/5/19 Plants watered every day (5.5-week duration) Alternating members
2/25/19 – 4/5/19 Plants measured every other day (5.5-week duration) Alternating members
4/5/19 Final measurements are taken: root length, root biomass, growth rate, and amount of chlorophyll. All
4/5/19 – 4/8/19 Perform statistical analysis on results and interpret data All

E. Expected Significance
As global temperatures continue to rise due to global warming, it is important to test and make predictions about the effects that this increased temperature will have on plant growth. By testing these invasive species’ growth patterns in the increased temperature, we expect to obtain significant results. Due to the fact that the Lonicera maackii plant comes from a milder climate natively, we expect that the effects of the increased temperature will be more severe on this plant than they will be on the Tussilago farfara plant. Due to this hypothesis, we expect that they T. farfara plants will show higher stomatal density, have higher photosynthetic pigment counts, and a higher calculated growth rate, all indicating a better ability to cope with the increased temperature. In terms of below ground growth, we expect that T. farfara may be able to grow deeper roots than L. maackii but that their root dry mass will be relatively the same. In simple terms, we expect that the growth of the T. farfara plants will be less severely affected by the high temperature.
By finding significant results with this experiment, we would hopefully be able to apply these results in the future plans for dealing with invasive species. By knowing how certain plants react to the increasing global temperatures, we can come up with a better plan for how to stop their invasive nature. Specifically, if their above ground growth or below ground growth shows significant differences, this could indicate that targeting a specific area of the plant might be an effective treatment. In addition to this, the results of this study could be used as a starting off point to get an idea of how invasive species hailing from all different areas of the world will be affected in the future by rising global temperatures.

Results
Salinity is a stress that can be treated to any species of seeds. High convergences of salts in the seeds are a typical issue that influences the germination procedure. Therefore, we considered the impacts of salinity on seed germination on species of seeds called Brassica Rapa (turnips). All through the investigation, we have discovered that Nitrogen solution contrarily influenced the development of this species of seeds. Toward the finish of the examination, we had presumed that germination procedure was repressed by Nitrogen solution because of high convergences of the salt. Our investigation additionally demonstrated that lower centralizations of Nitrogen solution expanded the quantity of seeds that developed contrasted and the control (deionized water). The control for the investigation was temperature, kind of seed, and the salt that was utilized.
We contemplated the impact of salt stress on the germination of Brassica Rapa (Turnips). Brassica Rapa and like different seeds need water to develop. Thus, one of the medications for this examination was water and was the control. To look at the impact of the salt on Brassica Rapa seed germination, this species of seeds was set in various groupings of Nitrogen solution salt: 0.05 M,0.10 M,0.15 M, and 0.35 M. High groupings of Nitrogen solution arrangement brought about normal of 2-4 seeds that sprouted and thus, salt stress brought down the quantity of seeds that developed , while the seeds that were treated with lower convergence of Nitrogen solution displayed higher number of germination and arrived at the midpoint of around 6-10 germinations (Went, 2007). For instance, on day 5, in a 0.35 M just 2 seeds developed and around the same time, yet an alternate in a 0.15 M each of the 10 seeds sprouted. The seeds that had the most elevated focuses (0.35 M) of Nitrogen solution arrangement recommended that any salt stress detrimentally affected germination for Brassica Rapa (Schulz & Glaser, 2012).
On days 1-7 in the 0.35 M Nitrogen solution, the quantity of seeds that sprouted by and large was 2 and was steady all through the whole time seven day stretch of information accumulation, which is reliable with the proposal that the more focused the salt, the less germination that happens. To proceed, salt stress influenced for the most part the underlying phases of germination for Brassica Rapa, yet differed relying upon the centralizations of Nitrogen solution arrangement. A seed that had 0.15 M in day 1 had 3 germinations of the Brassica Rapa species, however around the same time at a 0.05 M, a sum of eight seeds had sprouted. All things considered, the germination of Brassica Rapa was recorded for a time of seven days directly after the seeds were presented to Nitrogen solution arrangement. For the seeds treated in refined water, a normal of 10 seeds were developed. Thusly, the impact of salt on the species Brassica Rapa influenced the quantity of seeds that developed.
Table 1. Results
Plant 3/19 Height, cm (4/2) Root Length, cm (4/2) Root Width, cm
Low Heat / No N 1 2.2 6.1 2.2
2 5.6 5.4 3
3 4.1 15.4 4.4
4 4.8 11.1 2.9
5 4.5 7.4 1.6
6 4.1 9.7 5.1
7 4.7 11.4 4.8
Low Heat / Yes N 8 4.2 1.9 0.5
9 4.5 3.4 0.4
10 5.1 3.6 0.5
11 4.1 1.8 1.7
12 6.1 4.1 0.1
13 4.6 3.5 0.9
14 7.6 7.1 0.5
High Heat / No N 15 5.1 8.5 2.8
16 3.8 3.3 1.8
17 5.5 5.3 4.6
18 5.7 9.1 3.4
19 5.4 8.4 2.8
20 3.7 2.8 3
21 5 8.4 3.6
High Heat / Yes N 22 4.1 4.2 1
23 3.4 2.2 0.9
24 4.6 3 0.8
25 4.5 2.7 0.7
26 4.5 0.5 0.3
27 3.2 0 0
28 1.7 1.5 0.5


Low Heat / No N graph

High Heat / No N graph

High Heat / No N graph


High Heat / Yes N graph
ANOVA analysis
SUMMARY OUTPUT

Regression Statistics
Multiple R 0.760352
R Square 0.578136
Adjusted R Square 0.56191
Standard Error 2.475516
Observations 28

ANOVA
df SS MS F Significance F
Regression 1 218.3545 218.3545 35.63121 2.67E-06
Residual 26 159.3327 6.12818
Total 27 377.6871

Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%
Intercept 1.900536 0.752848 2.524461 0.018029 0.353035 3.448037 0.353035 3.448037
X Variable 1 1.798996 0.30138 5.969188 2.67E-06 1.1795 2.418493 1.1795 2.418493


The F-value is 35.63121 while the p-value is 2.67E-06 with an intercept of 0.018029
Discussion
Sprouted seeds and seedling development is indispensable for an effective foundation of a plant. The impact of salt on seed germination was not seen, so first, we had asked whether salt influences seed germination in the species of Brassica Rapa and built up our theory: The impact of salt stress on germination of Brassica Rapa.The table proposes that salt influence seed germination in the species of Brassica Rapa. In light of the outcomes from the table, the information bolsters our underlying speculation. Brassica Rapa demonstrated different responses in germination when put in various groupings of Nitrogen solution arrangement. In lower groupings of salt, it can sprout, yet in a higher convergence of salt, the germination procedure might be deferred or halted. In a portion of the seeds at higher centralizations of salt had a bigger number of germinations than the one with low focus. The salt resilience system shows higher number of germinations under high salinity condition.
Accordingly, another design was to reinforce our comprehension of reactions distinctive groupings of same salt with expectations of developing more seeds with more acknowledgment to salt. For instance, in day 3 column ,a 0.15 M Nitrogen solution had an aggregate of 9 seeds that sprouted, however a 0.05 M Nitrogen solution , had 8 seeds that germinated. This information underpins the explanation that higher germination in higher grouping of salt may prompt more resilience of salt and reinforces Nichols position. Albeit a portion of the seeds treated in a higher centralization of salt may brought about some higher number of seeds that sprouted, a large portion of the Brassica Rapa seeds at a higher convergence of salt yielded few seeds that developed. In the day 4 section, one of the 0.35 M of Nitrogen solution had zero germinations, though the 0.1 M had a sum of 8 germinations, which may likewise show that germination is influenced by salt stress. The low germination sum in Brassica Rapa in salt may demonstrate that it isn't endure to salt, yet might be tolerant up to a specific focus. After the grouping of salt expands, it will ascribe to a lower number of seeds that will grow when put in a salt treatment. In addition, we utilized a similar salt arrangement, and utilized a similar sort of seed, however in an alternate molar grouping of the Nitrogen solution to determine the impact of salt stress on seed germination.
Moving back to the information, our outcomes demonstrated a general connection among salt and the quantity of seeds developed. Our most elevated number of germination were the ones that were put in 5 mL of refined water (Poorter et al, 2012). It is additionally essential to make reference to that albeit low germination sum were seen in saline conditions contrasted with the ones in control conditions (refined water), temperature by and large did not influence the quantity of seeds that sprouted under salt treatment. The temperature was kept consistent all through the whole examination. The Percentages of germination diminished with expanding salinity and when salts are missing, germination is higher. To proceed, the table proposed that Brassica Rapa demonstrated little capacity to develop after the presentation to salt. To epitomize this, in the last line of the table, all seeds that were treated with the salt had zero germination and the refined water was the overwhelming treatment in germination. Thus, abnormal amounts of salt deferred the germination procedure altogether. The high impact of salt concurs with in his examination in suaeda salsa.
Through the span of the examination, there might be a few reasons that not all seeds could have been developed effectively. One explanation behind this could be that germination under salt stress could be changing from species to species of seeds. Particular species of seeds could have progressively salt resistance to other people and in this way expanding the quantity of germinations in a salt treatment. Further research or study must be directed to make sense of. So as to decide whether distinctive species of seeds have diverse resistance to salt, a similar trial can be repeated with various centralizations of a salt of picking, yet with various species of seeds. Another wellspring of issue could be is that the seeds continued sliding out of its position a great deal, which influences the space that they have to grow and could be effectively fixed by appropriate collapsing of the paper towel.

References
Poorter, H., Bühler, J., van Dusschoten, D., Climent, J., & Postma, J. A. (2012). Pot size matters: a meta-analysis of the effects of rooting volume on plant growth. Functional Plant Biology, 39(11), 839-850.
Schulz, H., & Glaser, B. (2012). Effects of biochar compared to organic and inorganic fertilizers on soil quality and plant growth in a greenhouse experiment. Journal of Plant Nutrition and Soil Science, 175(3), 410-422.
Went, F. W. (2007). The experimental control of plant growth. The experimental control of plant growth., 17.