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Laboratory 1 mindi barker

Laboratory 1 mindi barker - Laboratory 1 Laboratory 1...

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Laboratory 1 Page 1 Laboratory 1: Dependent and Independent Variables Mindi Barker Instructor: Alyssa Kunz SCI 207 Dependence of Man on the Environment May 24, 2011
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Laboratory 1 Page 2 Lab Data: Super Harvest- none- 161.9, 164.3, 164.1 average: 163.4 Super Harvest- low- 157.5, 155.0, 159.1 average: 157.2 Super Harvest- high- 125.5, 129.0, 130.0 average: 146.5 BT 123- none- 160.1, 164.8, 164.2 average: 163.0 BT 123- low- 164.0, 162.6, 168.3 average: 165.0 BT 123- high- 155.1, 163.0, 163.9 average: 160.7 Golden Crop- none- 181.6, 182.8, 189.8 average: 184.7 Golden Crop- low- 177.9, 171.2, 170.6 average: 173.2 Golden Crop- high- 135.4, 139.6, 138.3 average: 137.8 BT 456- none- 190.0, 183.2, 184.8 average: 186.0 BT 456- low- 178.8, 172.6, 179.6 average: 177.0 BT 456- high- 157.3, 157.0, 159.0 average: 157.8 Lab Journal Questions: 1. Describe the effects of the ECB infestations you used. Were all corn varieties equally effective at controlling the ECB? How do you know? The ECB infestations lowered the crop yield of all the corn varieties. The difference was how much it lowered it. The Super Harvest lost about 10% of it's yield when exposed to high levels of ECB. The BT 123 only lost about 1% of it's yield under the same conditions. The Golden Crop lost about 25% of its yield when the ECB levels were changed to high. The BT 456 lost about 15%. This shows that of all the varieties of corn, the BT 123 was the most effective at growing under ECB conditions, while the Golden Crop was the least effective.
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