Greenhab Report – February 12th

Crew 205 Green Hab Report – 12-FEB-2019

GreenHab Officer: Nathan Hadland

Environmental control: Heating and Cooling w/ ambient air (4 hrs)

Shade Cloth (40%)

Average temperatures:

Low: 17.7°C

High: 27.9°C

Hours of supplemental light: 5 Hours

Daily water usage for crops: 12 gallons

Water in Blue Tank: ~ 276.5 gallons

Time(s) of watering for crops:

TIME NOTED TEMPERATURE(° C ) / HUMIDITY(%) [AT TIME OF WATERING]

1) 09.00 AM 19.5° C / 54 %
2) 12.00 PM 27.6° C / 28 %
3) 15:30 PM 19.8° C / 63 %
4) 18:15 PM 18.7° C / 45 %

Changes to crops: None

Narrative: Today we continued sample collection on EVA’s for the regolith samples for the nutrient supplementation experiments (see mission summary). We also began characterizing regolith samples and took photographs underneath the dissection microscope. A more thorough analysis of the samples will be available in tomorrow’s science report. The A. Thaliana seeds were washed and placed on germination plates last night and we expect germination to be in initial stages tomorrow.

Additionally, we took photographs of the dissected cucumber samples under the optical microscope and found evidence of degraded cell structure, likely from the fungi growing on the dead plants. More information and photos will be available in tomorrow’s science report as well.

We removed 1 dead sunflower from its grow bed to prevent the spread of mold. Similarly, we removed 1 dead Red Leaf Lettuce from its pot. Additionally, we groomed dead biomass (fallen leaves/stems) from several of the grow beds. We also harvested small amounts of oregano, parsley and lemon basil for lunch.

Harvest: 1/3 g Oregano

1/3 g Parsley

1/3 g Lemon basil

6.3 g of dead material (including dead cucumbers)

Support/supplies needed: None.