Pineapples have no seeds. Most pineapples bloom only once in their lives, and after flowering, the mother plant will die after living for a while. At this time, one or several tillers will grow at the base or root of the stem of the mother plant, which is the new plant for pineapple propagation. Pineapple is one of the four tropical fruits in the world (the other three are bananas, coconuts and mangoes), ranking second. Pineapple originated in America and was introduced to China in Ming and Qing Dynasties.
When American pineapple was first introduced, it was confused with jackfruit imported from India and Southeast Asia. But these two tropical fruits are very different, so people gradually separate their names. Li said in Volume XIII of Notes on South Vietnam during the reign of Emperor Qianlong of Qing Dynasty: "Fancun in the middle of Guangdong Province is planted with mountainous Boluo along the road, with a fist-like horizontal stem and prickly leaves, which is full of balance." It is known that the jackfruit of American fruit has been reduced to Poirot at this time; The word "mountain" is added in front of it, which means it can be planted on the hillside. In the Guangxu period of Qing Dynasty, Wu Qi said in Volume 31 of Textual Research on Plant Names and Facts: "Loudou produces fruit 100 east, which is Poirot". He went on to say, "Also known as Fanlouzi, it looks like an orchid with dense leaves and stems. Its leaves are peeled and stored with tendons, that is, polonium. " This may be the earliest record called Poirot alone.