论文部分内容阅读
甘薯是旋花科甘薯属中的一个栽培种,又名番薯、红薯、红苕、山芋、地瓜、白薯等。块根味甜,富含淀粉,主要作粮食、饲料和蔬菜,也是轻工、化工和食品加工的原料。甘薯在热带和亚热带四季常绿,多年生,为异花授粉作物。在温带地区作一年生栽培,自然条件下不能开花结实。有纤维根、柴根和块根。由粗壮的不定根逐渐膨大而成块根,即食用的薯块,其功能为贮藏养分,育苗繁殖。茎蔓
Sweet potato is a cultivated species in Convolvulaceae, also known as sweet potato, sweet potato, red gourd, potato, sweet potato, sweet potato and so on. Root sweet, rich in starch, mainly for food, feed and vegetables, but also light industry, chemical and food processing raw materials. Sweet potato is tropical and subtropical evergreen, perennial, cross-pollinated crops. In temperate regions for annual cultivation, under natural conditions can not blossom strong. There are fiber roots, Chai roots and roots. By sturdy adventitious roots gradually swollen into roots, that is, the consumption of potato, its function of storage of nutrients, nursery reproduction. Stalks