บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects of vase-water bacteria on the senescence of cut carnation flowers.

Doorn, W. G. van; Zagory, D.; Witte, Y. de; Harkema, H.;

Postharvest Biology and Technology Year: 1991 Vol: 1 Issue: 2 Pages: 161-168 Ref: 13 ref.

1991

บทคัดย่อ

Effects of vase-water bacteria on the senescence of cut carnation flowers.

A low hydraulic conductance and a high number of bacteria were found in the basal 5-cm stem segment of cut flowering carnation stems (cultivars Scania and White Sim) which had been held for 7 days in water at 20 deg C. The inclusion of antibacterial chemicals in vase water prevented the accumulation of bacteria in the water and in flower stems, but had no effect on flower longevity. Similarly, maintaining flower stems sterile in water until flower senescence had no effect on flower longevity. The inclusion of bacteria (originating from the vase water of carnation flowers) in vase water at a number that is normally reached after 7 days (107 cfu/ml) did not significantly hasten flower senescence. It is concluded that the bacterial population developing in the stems of cut carnation flowers during vase life leads to vascular occlusion but this apparently has little effect on flower longevity.