บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Carnations: effects of high concentrations of carbon dioxide on flower physiology and longevity.

Irving, D. E.; Honnor, L.;

Postharvest Biology and Technology Year: 1994 Vol: 4 Issue: 3 Pages: 281-287 Ref: 11 ref.

1994

บทคัดย่อ

Carnations: effects of high concentrations of carbon dioxide on flower physiology and longevity.

ABSTRACT :

 

Elevated CO2 atmosphere treatments (60% CO2 in air) were applied for 1 or 3 days at 0 or 20 deg C to cut white carnation flowers (cv. Delphi) as a potential disinfestation treatment. Water uptake, flower diameter, respiration rate, ethylene production, longevity and pH of sap expressed from petals were measured to determine the physiological response of the flowers to the treatments. CO2 did not affect longevity at 0 or 20 deg . The higher temperature was more detrimental to the flowers than was 60% CO2. High temperature induced earlier peaks in rates of respiration and ethylene production. There was a transient yellowing of the petals upon removal from the 60% CO2 treatments at 20 deg . The pH of extracts from these petals was about 7 compared with pH 6 of extracts from petals that did not yellow. It is concluded that carnation flowers can withstand 60% CO2 at 0 deg without detriment to vase life, conditions that could constitute a disinfestation treatment against some insects.