237
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GMU:DIY Biolab “Driver’s License”/Christian Wiegert (view source)
Revision as of 18:31, 7 March 2018
, 7 March 2018→1:Growing plants under very artificial light
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===Conclusion=== | ===Conclusion=== | ||
So during my experiments I learned interesting things about the life of plants and in fact right now I have more questions than when starting out, but for my one thing is very obvious: Trying to to make plants grow in an artificial way is nothing bad just because its not like nature, basically we are only using things that are somehow derived from nature, but it needs a whole lot of effort and consumes a big amount of energy. So in the end for me the question is how much energy is it worth e.g. growing plants in winter and where do we get that energy from. Using fossil energy for these purposes surely is quite a bad thing. Using renewable energy is much better, but as a conversion of energy always inherits some inneficiency its always less efficient than using the sunlight directly to grow plants. And regarding the time and work it takes, conventional planting also seems to make more sense to me, as this uses symbiotic effects of organisms to achieve a friendly growing environment very easily compared to buying and controlling different ingredients plus always having to monitor the process. | So during my experiments I learned interesting things about the life of plants and in fact right now I have more questions than when starting out, but for my one thing is very obvious: Trying to to make plants grow in an artificial way is nothing bad just because its not like nature, basically we are only using things that are somehow derived from nature, but it needs a whole lot of effort and consumes a big amount of energy. So in the end for me the question is how much energy is it worth e.g. growing plants in winter and where do we get that energy from. Using fossil energy for these purposes surely is quite a bad thing. Using renewable energy is much better, but as a conversion of energy always inherits some inneficiency its always less efficient than using the sunlight directly to grow plants. And regarding the time and work it takes, conventional planting also seems to make more sense to me, as this uses symbiotic effects of organisms to achieve a friendly growing environment very easily compared to buying and controlling different ingredients plus always having to monitor the process. | ||
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=<span style="text-transform:uppercase; font-size: 0.7em;letter-spacing:0.3em;background:#444;color:#fff;padding:0.3em 0.5em;text-shadow:0px 0px #000;">Ideas</span>= | =<span style="text-transform:uppercase; font-size: 0.7em;letter-spacing:0.3em;background:#444;color:#fff;padding:0.3em 0.5em;text-shadow:0px 0px #000;">Ideas</span>= | ||
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=== Day 0 === | === Day 0 === | ||
I build and set up a box, seperated in 4 sections. Each section containing one 1 Watt LED to support the inhabitants with light. The boxes have fans, so the air inside will be interchanged from time to time. To control the amount and - for the first experiment - the duration of the light and the fans i wrote a little script that is running on an arduino. This script also counts the time (and in case of a powerdrain stores this information on the eeprom). | I build and set up a box, seperated in 4 sections. Each section containing one 1 Watt LED to support the inhabitants with light. The boxes have fans, so the air inside will be interchanged from time to time. To control the amount and - for the first experiment - the duration of the light and the fans i wrote a little [[:File:artiPlants_01.zip|script]] that is running on an arduino. This [[:File:artiPlants_01.zip|script]] also counts the time (and in case of a powerdrain stores this information on the eeprom). The LED are suspended from the top of the box using some bend metal strips, which simply clamp the star platine of the leds in place. Therefor i was able to adjust the space between LED and Pots to my liking, plus i didn't have to use any additional heatsink, as the LED were completely surrounded by air. | ||
For the first part I did not do controlled watering, i just gave them water by hand. | For the first part I did not do controlled watering, i just gave them water by hand. | ||
'''List of Parts''' | |||
*Housing made of MDF | |||
*Arduino Uno | |||
*2x 1W LED 660 nm (deep red) | |||
*2x 1W LED 440 nm (royal blue) | |||
*4x LDD-350L MEANWELL LED Driver | |||
*2x 12V Fan | |||
* generic switching relay | |||
*12V 4A power supply | |||
*terminal strip | |||
*Wires | |||
[[:File:artiPlants_01.zip|->Arduino Script]] | |||
[[File:day_0_box_web.jpg|390px|Front View of Growbox]] | [[File:day_0_box_web.jpg|390px|Front View of Growbox]] | ||
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As a first step i prepared thy seeds, by soaking them in warm water, which was boiled and thus sterilized before.<br/> | As a first step i prepared thy seeds, by soaking them in warm water, which was boiled and thus sterilized before.<br/> | ||
Then I prepared some Agar-Agar medium using the following recipe: | Then I prepared some Agar-Agar medium using the following recipe: | ||
'''Growth Medium Recipe'''<br/> | |||
''based on notes of Azucena Sánchez, adopted to what was available in the Lab'' | |||
*0,46 gr (2*0,23gr) Murishage Skoog medium (bought via ebay[https://www.ebay.de/usr/www_dephyte_com?_trksid=p2057872.m2749.l2754]) | |||
*4 gr (2*2gr) Sacharose | |||
*400ml (2*200ml) distilled water | |||
*0,96gr (2*0,48gr) agar | |||
stirred until nearly everything was dissolved<br/> | |||
pH medium 1 = 7,3 | pH medium 2 = 8,8 | |||
<gallery widths=120px heights=160px mode=nolines> | <gallery widths=120px heights=160px mode=nolines> | ||