一、品种和采收1.品种洋葱按皮色可分为黄皮、红(紫)皮及白皮三种;按形状可分为扁圆和凸圆两类。黄皮扁圆类型属中熟或晚熟,肉质白里带黄,细嫩柔软,甜而稍带辣味,水分较少,品质好,休眠期长,耐贮藏,如天津黄皮、辽宁黄玉等。红皮类型晚熟,肉质不如黄皮细嫩,水分较多,质地较脆,辣 First, the varieties and harvesting 1. Varieties Onion by skin color can be divided into yellow, red (purple) skin and white three; according to the shape can be divided into oblate and convex two categories. Huangpi oblate type is cooked or late-maturing, fleshy white with yellow, tender and soft, sweet and slightly spicy, less water, good quality, long dormant period, resistant to storage, such as Tianjin Huangpi, Liaoning Topaz. Red-type late-maturing, fleshy yellow skin tender, more water, crisp texture, spicy