In a message dated 9/17/2004 2:21:21 PM Eastern Daylight Time, jglatt@ptd.net writes: According to information I received from a researcher in Holland, the amount of ethylene gas given off by fruit such as apples is relatively small Judy: Did your researcher provide any hard figures? I have seen claims of apples producing anywhere from 30 to 200 ppm when stored in the fruit or vegetable crisper of a home refrigerator. Variables might include "ripeness" of the apple, variety, temperature and ventilation. Mark Mazer USDA Zone 5 Giant Schnauzer Rescue