The
ethylene concentration in the chambers was
verified by testing a sample with a gas chromatograph
equipped with a flame ionization
detector and Haysep R packed column (model
3800; Varian, Walnut Creek, Calif.). Florets
from all cultivars were exposed to ethylene for
1, 3, 10, and 24 h in order to determine differences
in ethylene sensitivity. Control florets
were harvested the same as the treated florets,
but were held in ethylene-free chambers.
Theethylene concentration in the chambers wasverified by testing a sample with a gas chromatographequipped with a flame ionizationdetector and Haysep R packed column (model3800; Varian, Walnut Creek, Calif.). Floretsfrom all cultivars were exposed to ethylene for1, 3, 10, and 24 h in order to determine differencesin ethylene sensitivity. Control floretswere harvested the same as the treated florets,but were held in ethylene-free chambers.
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