Research of plant life is carried out by students and professors at the Horticultural Research Department of Reading University.
Various shots show carnations and chrysanthemums being picked and packed at a greenhouse. In the Horticultural Research Department of Reading University, a woman snips off the leaves of a chrysanthemum and presses them between two sheets of glass, then photographs them. She traces the outline of a leaf with a a special instrument to measure it.
A man in a greenhouse fixes a kind of clamp over the leaf of a potted plant; a contraption attached to the clamp forces the plant to 'breathe' through it's pores; two students watch the experiment. Several thermostatically controlled plant incubator tanks are seen; a woman takes a plant from one tank; a man looks through a little window into another tank.
Another man draws a curtain around a group of plants on a table, then goes inside the red-lit enclosure and inserts a needle into the plant's stem. A programming card is fed into a large machine to control the light. The same plants are injected with radioactive food, so it can be followed around the plant with a Geiger counter. A woman in a blue-coloured room takes a small container of seedlings into a red-coloured room.
Note: there are notes on file and a news cutting about the research of this unit.