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SACE - South Australian Certificate of Education

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Germination Practical
Page 1/12

Germination Practical

Biology

12 Pages SACE - South Australian Certificate of Education Year 12 Essay / Project Year Uploaded: 2017

This practical compared the effects of calcium nitrate and distilled water on the rate of germination for pea seedlings. To test this, six seedlings were folded in paper towel, with each fold containing a new seedling and placed into either a 500mls of distilled water or a 5% calcium nitrate solution. The pea seedlings roots were measured 5 times; the lengths were recorded into a table of values. The data generated showed a very strong exponential relationship between the growth and time, with the calcium nitrate growing a 2.22% more than the seedlings in distilled water. The results also showed the seedlings placed into the calcium nitrate solution had a more rapid growth rate after the first five days. Therefore, the results supported the hypothesis to a high degree, this stated “When the pea seeds are placed into a solution of calcium nitrate for 7-days, then the seedlings will have a faster growth rate compared to those in a distilled water solution.” The results concluded that after the pea seedlings were placed into calcium nitrate grew at a faster rate when compared to those in a distilled water solution.

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