plant material to be used in the laboratory
can be sterilized or fumigated, and further
infection is prevented by insectproofing
the greenhouses and outer walls
of the building. Mercury vapor tubes permit
the growing of plants in fluorescent
light. In conjunction with fluorescent
lamp illumination the phytotron has complete
air conditioning. Regular alternation
between day and night temperatures
can be synchronized either with a predetermined
daily time pattern or with
changes in total light and heat radiation.
In all greenhouses and light and dark
rooms the air moves past the plants at a
uniform rate of 33 feet a minute. A wind
tunnel has been built in one of the airconditioned
rooms where plants can be
subjected to air velocities up to 1,600 feet
a minute. In another air-conditioned
room, equipped with artificial light
panels, slotted steel floor and waterproof
electrical outlets, rain and fog can be
produced. Two additional rooms can be
used for experiments in which the composition
of the air may be altered by
introducing either ordinary gases or unusual
gases, such as radioactive or smog
gases.
The completion of this laboratory
plant material to be used in the laboratory
can be sterilized or fumigated, and further
infection is prevented by insectproofing
the greenhouses and outer walls
of the building. Mercury vapor tubes permit
the growing of plants in fluorescent
light. In conjunction with fluorescent
lamp illumination the phytotron has complete
air conditioning. Regular alternation
between day and night temperatures
can be synchronized either with a predetermined
daily time pattern or with
changes in total light and heat radiation.
In all greenhouses and light and dark
rooms the air moves past the plants at a
uniform rate of 33 feet a minute. A wind
tunnel has been built in one of the airconditioned
rooms where plants can be
subjected to air velocities up to 1,600 feet
a minute. In another air-conditioned
room, equipped with artificial light
panels, slotted steel floor and waterproof
electrical outlets, rain and fog can be
produced. Two additional rooms can be
used for experiments in which the composition
of the air may be altered by
introducing either ordinary gases or unusual
gases, such as radioactive or smog
gases.
The completion of this laboratory
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