送交者: mangolasi 于 2006-1-10, 12:30:25:
回答: Question: 凤梨的种子在哪里？ 由 Latino2 于 2006-1-10, 12:27:20:
"The pineapple fruit develops from many smaller berries fusing together (called a multiple-accessory fleshy fruit). Though often debated, most scientists believe pineapples are a citrus fruit. It is large and ovoid with a tough, spikey, waxy shell of many hexagonal sections, containing large amounts of white or yellow flesh with a tough, fibrous core. Depending on the cultivar, the fruit can be up to 30 cm long and weigh more than 4 kg. Wild pineapples will contain one seed for each flower that produced the fruit. However, most commercially grown pineapples do not contain any seeds."