Abstract
In order to develop a pretreatment solution for cut rose, the effects of surfactants [Tween 20, Triton X-100, polyoxyethylene 4 lauryl ether (PLE)], germicides (aluminum sulfate, $AgNO_3$, dichloroisocyanuric acid, STS, benzalkonium chloride, 8-hydroxyquinoline sulfate), sucrose, and hormones (ABA and kinetin) on the longevity and quality of 'Red Sandra' were investigated in environment-controlled room. Although 20 and 50 ppm Tween 20, and 500 ppm PLE appeared, in appearance, to be effective in retarding blueing and wilting, respectively, they didn't show statistical differences as compared to distilled water control. Among germicides, $AgNO_3$ was the most effective in delaying petal blueing, petal withering, and reduction of fresh weight, regardless of its concentration, while, in the case of STS, only 1mM treatment was effective in delaying of petal withering. Only 5% sucrose treatment delayed petal blueing, petal withering, and bent neck, but showed no significant difference as compared to 500 ppm aluminum sulfate. Finally, single or combination treatments of ABA and cytokinin were found to rather stimulate the senescence of cut rose.
장미전용 전처리제의 개발을 목적으로 절화장미 'Red Sandra'를 공시하여, 계면활성제(Tween 20, Triton X-100, PLE), 살균제(aluminum sulfate, $AgNO_3$, dichloroisocyanuric acid, STS, benzalkonium chloride, 8-hydroxyquinoline sulfate), sucrose, 그리고 ABA와 kinetin의 전처리가 절화수명 및 품질에 미치는 영향을 조사하였다. 계면활성제의 효과는 Tween 20의 50 및 100ppm이 청변화 지연에, PLE 500ppm이 위조제에 좋은 것으로 나타났으나 증류수 대조구와의 비교시 통계적 유의성은 없는 것으로 나타났다. 처리된 살균제 중에서는 $AgNO_3$가 청변화 및 위조억제에 가장 효과가 좋았고, 농도에 관계없이 그 효과가 나타난 반면, STS처리는 1mM 처리에서만 화판위조를 지연시키는 효과를 나타내었다. 한편, sucrose는 5% 용액만이 청변화, 위조억제 및 꽃목굽음에 좋은 효과를 나타내었으나, aluminum sulfate 500ppm과의 비교시 통계적 유의성은 없었다. ABA와 kinetin의 단용 또는 혼용처리는 절화수명을 오히려 단축시키는 결과를 보였다.