To provide an accelerated aging seed testing kit system, a single sheet of plastic or other suitable formable sheet material is pressed into the shape of a compartment base having recesses for mounting a seed holder. A seed holder that includes a seed support and a seed support holder is formed. The seed support holder is formed of a single sheet of plastic having radially extending tabs that fit into the recesses of the container to support the seed support above the rest of the test kit. A lid is formed out of one piece of plastic having a bendable tab to serve as a port and the openings and connecting points of the lid and seed holder are positioned so they can only fit together in one orientation having the port above a bypass channel.