一、研究背景和目的我家花瓶里的“玫瑰”过三四天就枯萎了,有什么办法能让它们开得更久呢?我查找资料,发现我家的“玫瑰”其实是和玫瑰同属蔷薇属的月季;许多方法都可以延长鲜切月季的花期,如灼焦法、浸烫法、浸泡酒精或醋、在水中加食盐或白糖等。这些方法有没有效果呢?带着问题,我在家里进行了以下实验。二、实验过程和记录(一)鲜切月季在酒精、食醋中浸泡后的水 First, the research background and purpose My home in the vase “Rose ” withered over three or four days, is there any way to make them open longer? I find information and found that my home “Rose ” is actually and Roses belong to the rose genus Rose; many methods can extend the flowering of fresh cut rose, such as burning coke method, scalding, soaking in alcohol or vinegar, add salt or sugar in the water and so on. Are these methods ineffective? With questions, I conducted the following experiment at home. Second, the experimental process and records (a) fresh cut rose in alcohol, vinegar soaked in water