Research Progress on the Formation Mechanism of Blue Flower in Hyd-rangea macrophylla
Under specific cultivation conditions,the flower color of Hydrangea can be changed from pink to blue.The formation of blue flowers is affected by many factors,such as aluminum ions,soil pH,anthocyanin,co-pig-ment,and pH value of the liquid vesicle,etc.This paper reviewed the research progress on the factors and mecha-nisms of the formation of blue flowers of Hydrangea macrophylla,analyzed the problems at this stage,and looked forward to the future research on the regulation of flower color.This study provides a reference basis for future re-search on the mechanism of flower color regulation and cultivation and production of Hydrangea macrophylla.