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Dilution help much needed! Practical regarding seed germination!

 
 
Reply Thu 10 Sep, 2015 09:17 pm
Okay so we're doing a seed germination prac in biology and I'm not really sure how to figure out the concentration values.

I'm investigating the effects of concentration of aquasol fertilizer on the length of seedlings.

So the aquasol that we were provided with was already diluted (i think 80% concentrated with aquasol. We further diluted this solution to the concentrations that we wanted which was 0% 25%, 50%, 75% of aquasol.

I noticed that other people had written their concentrations as 0.5%, 1%, 1.5% and 2% but I'm not sure how they got these values?

Hope that made sense!
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Type: Question • Score: 0 • Views: 470 • Replies: 3
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ossobuco
 
  1  
Reply Thu 10 Sep, 2015 09:31 pm
@Hermione2884,
Why are you asking us?

You are in a lab class in school and ask a world wide web site?

Why not read up? Or even ask your teacher?

Oh, you are selling fertilizer online.
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farmerman
 
  1  
Reply Fri 11 Sep, 2015 12:44 am
@Hermione2884,
I wouldnt add the fertilizer until the seeds had germinated. I hope you are making several "germination cups" of each intended fertilizer mix so that you have representative samplings. Remember, if its an experiment."Keep everything else consistent" only vary one or two things at most per test cup (or whatever youre germinating the plants in)

What are you planting, grasses?

As far as mixes, do you know how to make volumetric or weight/weight proportion calculations?

Youre not being too clear, are you now going to take your given concentrations and further dilute them so that they are the same as your neighbors?


Whatever, seeds dont need fertilizers to germinate and , unless your solution mix is low enough, you could burn th little plants as they germinate.

Im not familiar with "Aquasol" an I run a farm with tearly plantings of soy beans, hay crops and rye grass for "green chop"
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farmerman
 
  1  
Reply Fri 11 Sep, 2015 12:50 am
@Hermione2884,
It qppears that "Aquasol" as a commercial mix, is either UK or Oz made stuff. (they spell it "fertiliser" in the ad, thats a UK "tell")
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