Lin Xin Wu Shuang Wang Zheng Chengshan Yan Jing
Summary was studied with two crops of wheat (Raphanussativus), and the effect of Menthahaplocalyx was studied. The results showed that some volatiles on mint were significantly inhibited the growth of radish seedlings and seedlings. Some water dip in mint have significantly inhibited the seed germination and seedlings of radishes, the growth of seedlings, and the role of wheat is not obvious; radish is more sensitive than wheat. The mint root secretion significantly inhibits the growth of radish seedlings, and promotes the growth of the seedlings, there is no significant effect on the growth of wheat seedlings. With the decrease in the concentration of the chemical substance, inhibition is gradually weakened, disappeared, and even transformed into promotion.
Key words mint; chemical effect; biometric determination; chemical substance
Effects of Mint AlleLolochemicalslin XIN, CHENG SHAN JIN JING
Abstract The effects of mint (Menthahaplocalyx) allelolochemicals were studied on two crops: wheat (Triticumaestivum), and radish (Raphanussativus) .The volatileness from aerial part of mint significantly inhibited the growth of seedling and root of radish The aqueous extract from aerial part. of mint significantly inhibited both the germination of seed and growth of seedling and root of radish, no significant inhibiting to wheat; radish is more sensitive than wheat The exudates of mint root showed obvious effects on inhibiting the growth of seedling but stimulating that of root. of radish;. less obvious in the growth of seedling of wheat radish was more sensitive to the allelopathic effect than wheat The suppression gradually decreased, disappeared and even changed into stimulative effect when the concentration of extract declined..
Keywords Menthahaplocalyx AlleLopathy
I. Experimental purpose • Preliminary learning How to study the existence of plant-sensitive effects by experimental methods; • Cognition of plants and its important impact on ecosystem structure and function, and learn from molecular levels to study organisms and environments The importance of the mechanism of action; • Preliminary understanding of the research status and development dynamics of chemical effects. Second, the experimental principle 1, the chemical effect: a plant (including microorganism) is detrimental to any direct or indirectly harmful effect of another plant (including microorganism) by releasing chemicals to the environment. Plant-sensitive effects are an important way to interact in the ecosystem. It plays an important role in the composition and distribution of plant communities, ecosystem succession, and species alternative mechanisms, the ecological invasion of foreign species. 2, the presence of the presence of the plants in the plant body is mostly the secondary metabolic substance of plants, and the main metabolic process of organisms is not involved. Various organs of plants may produce and release chemical substances. Stem, leaf tissue is a large number of sources of substances. 2 The release of the chemical substance is the pathway of stem-leaf-dissolving the most stems of the important root secretion. Plant residues degradation seed germination pollen propagation 3, mint, thin, thin, famous, tomorrow, for lip-shaped mint perennial Suigenic herbal plants have strong volatility. Its volatiles, leaching fluids in the ground and roots have a strong sense of chemical effects on wheat and radish. Third, the experimental step 1, the biometric measurement of the volatilization of the leaves Six dryers. 1-3 Makeup, 4-6. The dryer centralized a 1000ml large beaker, and 3 mint were found in the experimental group, and the situation was shown:
No. 2, No. 3, No. 3 (CM) 27.627.427.9 Average blade 12.612.913.2 Fresh weight (G) 19.4518.7220.07 The control group did not mint, but put the same size beaker, the same amount of vermiculite and isometric Nutrient. A 5 100ml small beaker was placed around the big beaker code, and 8 contiguous radish seedlings were implanted. After a one-time water, the dryer is sealed. At noon round, 6 dryers rotate counterclockwise, each of them rotates 90 degrees, ensuring uniformity of the sunshine. After 7 days, the experimental results were measured. 2. Biological assay in the upper part of the upper water dip, the germination test of fresh mint, cut into a small segment of 1 cm, plus 5 times weight distilled water, and filtered after 48 h at room temperature, the filtrate is for the test, concentration It is remembered to be 1: 5, and the refrigerator is stored at 4 ° C. Dilute water dip in the experiment to 1: 10, 1: 15 and 1: 20 three concentrations (both mass ratio m: m). Different concentrations of pneumbles were added to a petri dish which was equipped with 40 average radish and wheat seeds, and the control group was blended with distilled water and placed in a 25 ° C constant temperature tank. Add a culture solution every 24 hours. . 3d was measured after the seedlings were determined. (3 groups are parallel to each concentration). 3, the chemical effect of root secretion 1 Take 3 large small types of plastic basins in the molt font secretion and control group, respectively put the same amount of quartz sand, the top two pots are the same. The mint, the control group is not mint, poured into the equal amount of distilled water. In the future, the same amount of water is added to 3 bins every day for two weeks. Mixed mixed two potted leaching fluids were mixed, and the control group was also filtered, stored in the refrigerator 4 ° C to be used for use. 2 Biomei-sensitive effects of an induction of the solution in a culture dish containing 20-particulate plant seeds The meintonicity solution was added and placed in a light incubator. Temperature 25 ° C. The control group was cultured with quartz sand leaching. A molten root decapitary solution and the control group leaching solution were replaced every 24h. After 4 days, the sprout rate, the seedling height and the root length were measured. Fourth, experimental results and analysis 1. Biological assay experimental results of leaf volatile material: Miao Gaogen Long blade count results analysis, the gap between the experimental results is very significant, whether it is a high seedlings, root length and blade, mint to radish There is a more obvious inhibitory effect. The average number of control groups was more affixed. The difference was not large; the experimental group 2,3 groups were different, and the cause of the analysis was probably due to the large pressure in the individual dryers, and some blade volatiles were emitted into the air. Among the sakes. 2. Biological assay germination test results in the upper part of the earth-shaped germination test results 1 on radish germination rate 2 Analysis of the results of the germination rate of wheat • The impact on radish sprouts is very significant. Impact. As the concentration increases, the effect of inhibition is more significant. The distinctive difference can be seen after 24 hours. (The picture is a first day of the first day of three concentrations and control groups) The following four figures are: 3 days after 1:10 concentration; 1: 15 concentration; 1: 20 concentration; and four concentration control • Effect of wheat germination rate Some leaching fluids on the mint have also have an influential rate of wheat, but it is not very significant, and the relationship is not large. The results prove that the chemical effect of mint on wheat is worse than the strong radish, and radish is more sensitive than wheat. 3, the expression of the root solution of the root solution Experimental results 1 root leaching radish seedlings 2 root leaching wheat seedling high results analysis experiment results: Mint root of the leaching solution has inhibitory effect on the radish seedlings, but the root length Significant promotion effect. Mint root of the leaching solution has a non-significant inhibitory effect on wheat. Since it is the last experiment, the time is more urgent, there is no pre-experiment, the germination experiment made with a culture dish, and the results of wheat control group 3 and 1, 2 have a gap. Reflections: In the future, it will make a high-spirited and root length, and should use a small beaker instead of a petri dish.
V. Discussion Mint can release the chemical substance by rinsing and root secretion, etc., the seed germination and seedling of wheat and radish and seedling, seedling and development of seedlings. In this study, the root secretion is still on the ground. Some water immersions have shown a completely different part of different receptor plants or different parts of the same receptor plant (such as seedling and seedlings) (promotion, inhibition or no significant effect). Partial volatiles on mint For the role of plants, significant inhibit the growth of radish seedlings and seedlings. In terms of the inhibition of plant seed germination and seedling, seedling, seedling, seedling, seedlings, seedlings of seedling, seedlings and seedlings, have no significant effect on wheat effect; radish is more sensitive to wheat . The mint root secretion significantly inhibits the growth of radish seedlings, and promotes the growth of the seedlings, there is no significant effect on the growth of wheat seedlings. It is worth noting that the same chemical substance promotes the growth of seedlings, inhibits seedling growth (such as mint root secretion to radishes), how is this comparative effect? In addition to volatile substances, most of the chemical substances By affecting the roots and its environments, the receptor plant is affected, and the root reaction is not sensitive, and the growth of seedlings has an effect. It may be due to the absorption of the radish root secretion, which causes the seedlings to poison, so that the plant is short, and the root is obtained, but it is good. What is the reason for it? It is still necessary to study in-depth research. The concentration effect of the chemical substance is an important part of the study of the study. Common phenomena: As concentration decreases, the inhibition of chemical substances or promotes gradually weaken, but it is worth noting that in this study, the concentration reduction can even change the inhibitory effect of chemical substances into enhancement. There are still many things that require further research. 6. References 1. Kong Zuohua. Note in the study of plant-sensitive effects [J]. Journal of Applied Ecology, 1998,9 (3): 332-336.2. Zhao Dabu. Special Green Leaf Vegetables - Mint (C). Guizhou Agriculture Science 2000, 28 (5): 553. Zhang Yuanli Chen Jianqun Wei Chun Zhang Ji Lin: The role of the mint material and its preliminary separation. Application and Environmental Biology 2003, 9 (6): 611 ~ 6154. Wang Guoyong: Mint High-yield Cultivation Technology "China Agricultural Technology Promotion" 2003 No. 1 Linxin 1020800036 experiments have laminated two months of plant-sensitive trials, and finally have results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations. 1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken. 2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated. 3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people. 4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate. 5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious. 6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up.
7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results. 8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided. Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing. 1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot. 2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear. In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice. From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment. Lin Xin 1020800036 Lin Xin 1020800036 The experimental experience has laminated two months of plant-sensitive trials, and finally there was a result. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations. 1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken. 2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated.
3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people. 4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate. 5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious. 6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up. 7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results. 8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided. Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing. 1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot. 2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear. In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice. From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment.
Lin Xin 1020800036 Lin Xin 1020800036 Lin Xin 1020800036 Forest 1020800036 Laboratory experience in two months of plant-sensitive test, finally have the results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations. 1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken. 2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated. 3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people. 4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate. 5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious. 6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up. 7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results. 8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided. Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing. 1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot. 2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear.
In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice. From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment. Lin Xin 1020800036 Lin Xin 1020800036 The experimental experience has laminated two months of plant-sensitive trials, and finally there was a result. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations. 1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken. 2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated. 3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people. 4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate. 5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious. 6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up. 7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results. 8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided. Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing. 1. Missing pre-tests.
This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot. 2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear. In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice. From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment. Lin Xin 1020800036 Lin Xin 1020800036 The following four is: 1:10 concentration after 3 days; 1: 15 concentration; 1: 20 concentration; and four concentration controls
•
Effect of wheat germination rate
Some leaching fluids on the mint have also have an influential rate of wheat, but it is not very significant, and the relationship is not large.
The results prove that the chemical effect of mint on wheat is worse than the strong radish, and radish is more sensitive than wheat.
3, the results of the chemical effect of root subduction solution
1 root leaching radish
Miao high
Root length
2 root-leaching wheat
Miao high
Result analysis
The experimental results prove that the molten root of the leaching solution has a significant effect on the seedlings of radishes, and has a significant promotion of its root length. Mint root of the leaching solution has a non-significant inhibitory effect on wheat. Since it is the last experiment, the time is more urgent, there is no pre-experiment, the germination experiment made with a culture dish, and the results of wheat control group 3 and 1, 2 have a gap.
Reflections: In the future, it will make a high-spirited and root length, and should use a small beaker instead of a petri dish.
V. Discussion
Mint can release chemical substances by rinsing and root secretion, etc. Both have a completely different chemical effect on different receptor plants or different parts of the same receptor plant (such as seedling and seedlings). Some volatiles on the ground on the ground For example, significantly inhibit the growth of radish seedlings and seedlings. In terms of the inhibition of plant seed germination and seedling, seedling, seedling, seedling, seedlings, seedlings of seedling, seedlings and seedlings, have no significant effect on wheat effect; radish is more sensitive to wheat . The mint root secretion significantly inhibits the growth of radish seedlings, and promotes the growth of the seedlings, there is no significant effect on the growth of wheat seedlings. It is worth noting that the same chemical substance promotes the growth of seedlings, inhibits seedling growth (such as mint root secretion to radishes), how is this comparative effect? In addition to volatile substances, most of the chemical substances By affecting the roots and its environments, the receptor plant is affected, and the root reaction is not sensitive, and the growth of seedlings has an effect. It may be due to the absorption of the radish root secretion, which causes the seedlings to poison, so that the plant is short, and the root is obtained, but it is good. What is the reason for it? It is still necessary to study in-depth research. The concentration effect of the chemical substance is an important part of the study of the study. Common phenomena: As concentration decreases, the inhibition of chemical substances or promotes gradually weaken, but it is worth noting that in this study, the concentration reduction can even change the inhibitory effect of chemical substances into enhancement. There are still many things that require further research. Sixth, reference
1. Kong Zuohua. In the study of plant-sensitive effects [J]. Journal of Applied Ecology, 1998,9 (3): 332-336.
2. Zhao Dabin. Characteristic Green Leaf Vegetables - Mint (C). Guizhou Agricultural Sciences 2000, 28 (5): 55
3. Zhang Yuanli Chen Jianqun, Yunchun Zhang Ji Lin: The role of mint material and its initial separation. Application and Environmental Biology 2003, 9 (6): 611 ~ 615
4. Wang Guoyong: Mint high-yield cultivation technology. "China Agricultural Technology Promotion" 2003 No. 1
Lin Xin
1020800036
Experimental experience
After two months of plant-sensitive trials, finally had results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations.
1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken.
2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated.
3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people.
4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate.
5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious.
6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up.
7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results.
8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided.
Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing. 1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot.
2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear.
In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice.
From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment.
Lin Xin
1020800036
Lin Xin
1020800036
Experimental experience
After two months of plant-sensitive trials, finally had results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations.
1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken.
2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated.
3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people.
4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate.
5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious.
6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up.
7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results.
8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided.
Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing.
1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot. 2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear.
In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice.
From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment.
Lin Xin
1020800036
Lin Xin
1020800036
Lin Xin
1020800036
Experimental experience
After two months of plant-sensitive trials, finally had results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations.
1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken.
2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated.
3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people.
4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate.
5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious.
6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up.
7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results.
8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided.
Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing.
1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot.
2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear. In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice.
From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment.
Lin Xin
1020800036
Lin Xin
1020800036
Experimental experience
After two months of plant-sensitive trials, finally had results. The experiment verified that some facts were also innovated, but it also had many problems to be further studied because of the conclusions of the literature. In general, whether it is a chemical sense of plant, or the operation in the experiment, has a more in-depth understanding, and a new understanding of the problem of scientific research. First, summarize the improper use of experimental operations.
1. Don't get used to use tray by pallets or medicines. This is a habit, and it is also an inconvenient problem. And put things on the tray should ensure their stability, otherwise certain containers or medicines may be broken.
2. Wash, dry glass sticks and other items should be placed in the tray instead of the table. This is the problem that the experiment is careful. Place the item again on the table, washing and drying, can be treated.
3. After using the things, it is necessary to return to the original, otherwise it will be found next time, and it will bring inconvenience to other people.
4. To perform experiments on time, this is an experimental accuracy, otherwise the data is likely to be inaccurate.
5. To be ahead of the teacher in advance, otherwise it will delay the test, consequences, it is very likely to be very serious.
6. When picking the seed, you have to pick a full. When planting wheat in the beaker, pay attention to the flat side face up.
7. After loading the experimental material into a dryer, it is necessary to close the dryer, in addition to the Vaseline seal, also applied the tape stick, to prevent the internal high temperature to open the cover and ensure the accuracy of the results.
8. In a beeled with vermiculite, and a radish, the radish is measured, and the human human injury should be avoided.
Secondly, there are many problems, there are many problems, and many real problems cannot be satisfied, resulting in the initial imagination, from reeds to radish and wheat. This is the result of considering problems, nothing, not implemented. Fortunately, I have a result of seeking truth from facts. Even later, there are many places worth discussing.
1. Missing pre-tests. This step should be said to be critical, whether it is a selection, semifinal, choose the appropriate container, or the choice of concentration, will have a considerable help, and the improvement of the flexibility of subsequent trials is quite a lot.
2. The actual significance is not very big. It is only confirmed that the presence of mint on the expression of two plants is confirmed, and compared under different conditions. But what is the actual value is not clear.
In terms of analysis of the results again, the individual feels rough. But I have no good solution, because the time is too tight, it is impossible to consult a lot of information, and analyze the data carefully. In the future, I should pay attention to this time schedule, the analysis of the processing, analysis, and experimentation of the data is part of each of each stage, and finally only summarizes. In front of a brigade, in front of the phenomenon, the observation and simple comparison of individual people is far less, and the computer is a good choice. From the entire experiment process, scientific research did not imagine that mysterious, in fact, respect the facts, according to scientific research methods, in practice, try to consider comprehensive, more information, in the predecessors On the basis, there is your own innovation. Scientific literacy is not available after a test, and it needs to be worn in the later experiment.
Lin Xin
1020800036
Lin Xin
1020800036
