บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effect of bacteria on scape bending in cut Gerbera jamesonii flowers.

Doorn, W.G. van. and De Witte, Y.

Journal of the American Society for Horticultural Science. Volume 119, Number 3, May 1994. Pages 568-571.

1994

บทคัดย่อ

Effect of bacteria on scape bending in cut Gerbera jamesonii flowers.

Including bacteria in the vase water of cut Gerbera jamesonii Bolus flowers resulted in an increase in scape curvature depending on the concentration of bacteria in the water, cultivar, and season. In the summer, a strain of Pseudomonas aeruginosa or a mixed population of bacterial species, all isolated from the vase water of cut gerbera flowers, resulted in curvature of > 90 degrees in 'Liesbeth' at 10(8) cfu/ml and in 'Mickey' at 10(10) cfu/ml. In winter, the lowest bacterial concentrations that resulted in such bending were 10(6) and 10(10) cfu/ml, respectively. 'Mickey' showed bending at a lower water potential than 'Liesbeth'. Comparison between these results and the bacterial counts in vase water and water at retail shops indicates that frequently observed scape bending is at least partly due to bacteria.