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中籼稻胜优2号于1991年引进。经过试验、试种和表证示范结果，表现出高产稳产，适应性广，综合性状好等突出特点，一般每公顷产8100—8700公斤。根据试验和试种结果的综合资料进行灰色关联分析，主要性状与产量的灰色关联度排序：出糙率＞千粒重＞结实率＞穗粒数＞有效穗。经扩繁试种，从1992年种植面积0．32公顷迅速扩大到1994年1160多公顷。
Mid-indica rice on the 2nd introduced in 1991. After the test, test and table demonstration results show that the high and stable yield, wide adaptability, good overall characteristics and other salient features, usually yield 8100-8700 kg per hectare. According to the results of the experiment and the results of the comprehensive analysis of gray correlation analysis, the main traits and yield of the gray correlation ranking: Roughness> 1000-grain weight> Seed setting rate> Number of grains> effective panicle. After extensive breeding, the area planted in 1992 expanded rapidly from 0.32 hectares to over 1160 hectares in 1994.