美国甜菜种子生产历史很长,经过了很困难的阶段,甜菜种子目前的状况是美国农业的巨大成就。在欧洲,拿破仑选定并促进了甜菜制糖的发展。从拿破仑以后,植物学家成功的改善了甜菜原来的每一特性,改变了叶形,种子繁殖及块根。由于选择的结果,含糖增加百分之几 American beet seed production has a long history, after a very difficult stage, the current status of beet seeds is a tremendous achievement of the United States agriculture. In Europe, Napoleon selected and promoted the development of sugar beet. After Napoleon, the botanist succeeded in improving each of the original characteristics of the beet, changing the leaf shape, seed propagation and root tuber. As a result of the choice, the sugars increase by a few percent