August 2008 issue of the Cornell Flower Bulb Research Program Research Newsletter:
In 2005 a sensitive and reliable ethylene analyzer (by Hatech) was introduced in the market in Holland. The device is used by growers and exporters to control the ventilation rate in tulip storage rooms by linking the ethylene signal to the climate computer. When the ethylene level is above the threshold level the valve opens, subsequently the ethylene level drops and the valve closes
again etc.. Some growers or exporters use the analyzer to get an impression of the size of their Fusarium and ethylene problem.
Read the whole article. Starts on page 4.