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Serial Dilutions
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Staple across the bag such that there is space for roots to grow
Get 2 x 3 inch jewelry bags jewelry supply store. See product # on second templates/product_list_dro pdown_pix.aspx?GroupGui d=5523 Staple across the bag such that there is space for roots to grow Cut piece of paper towel and insert into bag Add 10 to 15 seeds to each bag
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Make a 0.2-g/mL NaCl STOCK solution
- Add 2 g of sodium chloride to beaker and add water to 10 mL 0.2 g/mL NaCl Stock Solution
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Get as many test tubes (minus two controls) as you have plastic jewelry bags for your experiment
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Add 5 mL of water to each of your test tubes
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Add 5 mL of Stock Solution to first test tube.
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Mix the first Tube
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Take 5 mL of first tube and add to second tube
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Mix
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Repeat and remove 5 ml from last tube and discard
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Using a 5mL disposable pipette
1. Add 3 mL from stock to a bag 2. Add 3 mL of water to another bag 3. Add the 3 mL from each test tube to its respective bag
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Stock Solution
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Stock
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Water
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Water
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0.1 g/mL Solution
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0.1 g/mL
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0.05 g/mL Solution
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0.5 g/mL
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Etc.
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Let Grow in Dark for ~ 1 week
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