Correlation Between Plant Height And Acidity

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Register to read the introduction… For example, although Plant A was more neutral than pH 5 Plant, it is shorter. This is a result of several factors: Plant A had germinated later than pH 5, and so would be 'lagging ' behind in terms of growth, and Plant A also shared a pot with Plant B, which may have competed with Plant A for nutrients and growth room for roots. Although the beans were planted a fair distance apart, roots can grow past that distance.

Another inconsistency is that, although acidity level (the number of hydrogen ions released in solution) increase or decrease tenfold per pH level, some levels have growth patterns that are more alike than others, despite the pH difference of only one. For example, the plant watered with a pH 5 solution has experienced 10 times more acidity (10 times more hydrogen ions) than the larger controlled plant (which germinated at around the same time as the pH 5 plant). Despite this, the plants grew at a similar pace, and the difference in their final height is small, as reflected in Figure 6 and Table 2.

Figure 6: Comparison of the growth rate of Control Plant B and pH 5 PlantFigure 6 shows the height of each respective plant on the days
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Although all of the plants were of the same species, they could still possess alleles that make them slightly unique from each other. It is possible that these alleles could affect how acid affects the plants ' growth.

Rubin, Ken. "Effect of Acid Rain on Plants." SOEST| School of Ocean and Earth Science and Technology. School of Ocean and Earth Science and Technology. 13 May 2009 .

Rubin, Ken. "Effect of Acid Rain on Plants." SOEST| School of Ocean and Earth Science and Technology. School of Ocean and Earth Science and Technology. 13 May 2009 .

³ Galbraith, Donald, Leesa Blake, Jean Bullard, Anita Chetty, and Eric Grace. McGraw-Hill Ryerson Biology 11. Toronto: McGraw-Hill Ryerson Limited, 2001. Print.

4 "Sulfuric Acid Plant Emissions Cost Dupont and Lucite $2 Million." Environment News Service 20 Apr 2009 Web.14 May 2009. .

5 "Soil pH: What it Means." SUNY-ESF E-Center. 2009. State University of New York College of Environmental Science and Forestry. 14 May 2009 .

6 Paillai, Maya. "Plant Growth Process: How does a Plant Grow?." Buzzle.com. 17 June 2008. 14 May 2009

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