MFSGL: The Final Report 
Each head was weighed and measured. Afterwards the lettuce was distributed to
classmates, secretaries, custodians, and of course, our instructor Dr. Newman. It
was amazing how fast it disappeared. A few of the heads were left in the setup to observe
bolting. Here are the final photos. ******
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Weights and Measures
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Closing Comments
Although this experiment should be repeated before any hypothesis can
be finalized, it is obvious to us that the coir is superior to the rockwool
in growing lettuce hydroponically. The weight of the plants grown in the coir
was more than twice that grown in the rockwool. This translates into greater
profits when growing commercially. Also, the coir, being organic, can be composted
when its use is over. The rockwool, on the other hand, is landfill in the end.
 
 
   Thanks to angelfire & lycos for keeping the web free |
My colleagues Cat and Cy put them to the scales. Cy ever-so-carefully measures,
as Cat weighs with great precision.
The final, average linear size was similar in plants from both
media, however, the final weights revealed that the plants grown in the coir weighed more
than twice as much as the plants grown in the rockwool. The average weight of the coir grown plants
was 209.7 grams. The average weight of the rockwool grown plants was 97.4 grams.