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What Ph Level Causes Plant To Grow Best

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What Ph Level Causes Plant To Grow Best
What pH Level Causes a Plant to Grow Best
Alexis Chavez, Heather Nutt, Nguyen Phan
Introduction
We knew that water is normally stated as the best form of liquid to make sure plants grow as best as they can, but we wanted to know if causing the water to be more basic or more acidic would affect how the plant grew. Our hypothesis was that if the plant is treated with a pH of 12 then treated with another pH.
Materials
The materials used were three identical plants, that each had 4 sections that were assigned a number, and that were watered with different water pH. One with a pH of 7, which was the control, on with a pH of 12, and the third with a pH of 3. The plants were all watered the same amount of 10mL of their selected solution. Each plant
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We actually saw a decrease in growth in the plants treated with a more basic solution. This is more likely caused by the plant cells not being able to absorb an extremely basic solution since the cell well is semi-permeable and the cell might have recognized this basic solution to be potentially harmful to the plant. The safety mechanism in place on the plant cell actually could have caused the death of the plant by not allowing water into the cell. The cell inadvertently shriveled due to the lack of water in the cell. As the cell continued to dehydrate, it collapsed in on itself. This is definitely not true for all of the cells, as observed by the plant not lacking a green color or being completely brittle to the touch, but a good majority of the cells saw this reaction to the pH 12 water solution which cause a decrease in …show more content…
Although the control plant that was treated with a pH of 7 showed a better reaction overall in plant growth, the plant treated with a pH of 3 was not far behind in results. There was only a marginal difference of .15 inches between the average growth of the plant treated with a pH of 3 and a pH of 7. This might indicate that once a plant reaches a certain acidity within its own body the growth will start to decline. This decline in growth could be due to the fact that a more acidic environment causes the plant to react to try and bring the plant to its desired homeostatic pH. The extra energy expended during trying to reach a certain desired plant pH caused a decline in growth because of how the energy was refocused on homeostasis. With a given opportunity to test this experiment again I would dissect a portion of the leaves and/or stem in order to confirm how the cells reacted to the pH treatments. I would potentially also examine cells from the stem and root in see how the cells react to the pH treatments under the microscope in order to understand better if the results happen immediately of not. Further research on plant cell homeostatic properties and how certain organelles respond to different pH levels, in relation to what they synthesize or produce, would also be beneficial in understanding the results of plant

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