
|
Start of ceiling construction in room # 3. |

|
A Mylar reflectant is applied to the parabolic shaped ceiling
around 1000 watt Metal Halide lamps. The ballasts are removed from the room. |

|
Technician among cherry tomato plants. Notice how the lamps
are separated from the grow room by a 4 mil vapor barrier. This enabled high fresh air
ventilation around the lamps without affecting the carbon dioxide enriched and moist air
inside the grow room. |

|
Fruit cluster, F1 hybrid cherry tomato. |

|
All produce, plant biomass and root systems were weighed on
completion of the experiments. |

|
Once the plant was removed, the troughs in which the root
system lived were opened to study the root development in relationship to the various
trough widths being tested. |