Use of insulfilm like plastic filter to simulate canopy filtered light for germination tests

Resumo

The use of Insulfilm like plastic filter for simulation of canopy filtered light was tested by germination of seeds of Arctium lappa L. (Asteraceae). The combination of plastic filter and 25W incandescent lamp gave the similar theoretical photoequilibrium of phytochrome as the shade of Myrtus communis L. canopy. Both canopy filtered (shade) light and plastic filtered light inhibited seed germination. Then, we concluded that the Insulfilm like plastic filter combined with incandescent lamps can be used in laboratorial seed germination tests for simulation of canopy filtered light.