1　概况我国的栽培稻分为籼、粳两大亚种 ,北方稻区栽培的是粳型品种。由于北方冬季寒冷 ,栽培的粳稻种子在田间自然越冬翌年春季不能发芽出苗。但近几年在辽宁稻区出现了一种以杂草形式生存的一年生北方野生稻 ,这种北方野生稻农民称其为“疯稻子”。北方野生稻在田间生长繁茂 1 Overview China’s cultivated rice is divided into Indica, japonica two subspecies, the northern rice cultivars are japonica varieties. Due to the cold winter in the north, the cultivated japonica seed can not germinate and emerge in the spring following the natural wintering in the field. However, in recent years, an annual northern wild rice that lives in the form of weeds has emerged in Liaoning rice fields. Such northern wild rice farmers call it “crazy rice.” Northern wild rice in the field of lush growth