Figure 1: Growth of cucumber is complex. After harvest, the cucumbers are immature and ripen gradually during storage. This phenomenon is defined as postharvest ripening. During postharvest, as a result of biological nature, some cucumber species select to ripen part of the whole body, with limited nutrition. Therefore, they show a local inhomogeneous growth at the tail of a cucumber body. Report by Phoenix TV: http://v.ifeng.com/news/society/201205/05a4eed1-dc0b-4936-b3be-fb70681691f9.shtml.