allelopathy data

# allelopathy data - Germinated Control group Experimental...

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Germinated Not germinated Control group 36 F11 4 F21 40 R1 Experimental group 34 F12 6 F22 40 R2 70 C1 10 C2 80 n

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Kate Stonesifer Friday Lab Allelopathy Data Analysis 1) Calculations: 2) a) Frequency of germination in control 36/40 = 90% Frequency of germination in experimental 34/40= 85%
b) X 2 = .46, df = 1, P = (.25<P<.50) c) Overall, 90% of radish seeds in the control group germinated whereas 85% of radish seeds in the experimental group germinated. The difference in the frequencies is not significant (P>5%). There is between a 25% and 50% chance that the difference frequencies is the result of sampling error alone. Due to the small sample size we cannot draw any firm conclusions because there is too great a risk that the differences in frequencies are caused by sampling error. 3) See attached excel worksheet 4) a) mean seedling length in control group 118.17 (+- 49.22), mean seedling length in experimental group 108.42 (+- 45.08) b) T value = 0.794, df = 57, P = 0.4302991136 c) Radish seeds in the control group had a mean root length of 118.17mm, and

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## This note was uploaded on 02/12/2010 for the course BIOL 202-004 taught by Professor Dr.johnson during the Fall '09 term at Butler CCC.

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allelopathy data - Germinated Control group Experimental...

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