事实上,蓝色是大自然中一种罕见的颜色,在植物中这一特点表现得更为明显——蓝樱桃“球果杜英”却是个例外。具体原因随果实和蔬菜的种类而不同。就叶菜类蔬菜而言,这涉及“能量效率”问题。植物的叶子是光合作用(利用光能生长)发生的场所。如果叶子为蓝色,光合作用效率将受到严重影响。来自德国斯图加特霍恩海姆大学的拉尔夫·施威格解释道:“如果要让植物的外观显示为蓝色,那么它得反射光谱中的蓝色部分, In fact, blue is a rare color of nature that is more evident in plants - Blue Cherry ”Durian“ is an exception. The exact reason varies depending on the type of fruit and vegetable. In the case of leafy vegetables, this concerns the issue of ”energy efficiency“. Plant leaves are photosynthesis (the use of light energy growth) occurred place. If the leaves are blue, photosynthesis efficiency will be seriously affected. Ralf Schweitzer from the University of Hohenheim in Stuttgart, Germany, explains: ”If you want the plant’s appearance to be blue, then it will reflect the blue part of the spectrum,