Abstract
In order to apply the thermal effect by plant to air conditioning in a room, the differences between of the temperatures in the boxes with and without plants were measured and were analyzed about ten kinds of plant. Tendency of those differences between the two temperatures shows two patterns. The one is a pattern in species of Basil, Begonia, Chingensai, Fuyushirazu Habotan, Marigold, Minitomato and Oxicardium; the higher temperature is, the more difference between the two temperatures is. In species of Chingensai, Fuyushirazu Habotan and Marigold, the plants drop the temperature with effect. In species of Chingensai and Oxicardium, the plants control the temperature with effect. The other is a pattern in species of Asparagus and Pothos; the difference between the two temperatures does not depend on environment temperature.
