March 14, 2008
11:00 a.m. - 12:30 p.m.
I recorded the highest and lowest daily temperatures for inside the greenhouse and outside for the previous week.
Earlier in the week had been daylight savings time; so the hour had moved forward. I recorded the time that the sun had risen - 7:00 a.m. - and what time the sun had set - 6:30 p.m. - and adjusted the time that the light would turn on and off in the growth chambers accordingly.
None of the tulips had emerged from the sand, so a pot was selected to check the status of the bulbs. The experiment of heat and light's effect on the growth of the tulip bulbs was selected. The sand was gently shoveled out and sifted through. It was discovered that all but two of the bulbs had rotted, and the two remaining bulbs did not seem to have grown any roots at all. This being very disappointing, the experiment that tested the effect of cold temperatures on the tulip bulbs was then sifted through in the hopes that not all of the experiments had not rotted. It was exciting to find that not only had eight out of the ten bulbs in that test had not rotted, but many of them had developed roots. The rotted bulbs from both tests were discarded, and the remaining bulbs were replaced on 5 cm of sand with the rest of the sand poured on top to fill the pots.
The sand was sifted through to find the bulbs.
Only two bulbs from the heat and light experiment remained.
A rotted bulb.
8 of the 10 bulbs in the cold and light experiment remained.
Many bulbs from the cold treatment had developed roots.
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