威优56是湖南农业大学水稻科学研究所选配的三系杂交水稻新组合。该组合高产稳产，蛋白质含量高，出糙率高，生育期适宜，耐肥抗倒，可饲食兼用，尤以作饲料稻开发应用前景广阔。1997年2月通过了湖南省农作物品种审定委员会审定。互选育经过1980年秋，用具有强恢复能力、株叶型 Weiyou 56 is a new line of three-line hybrid rice selected by Rice Research Institute of Hunan Agricultural University. The combination of high and stable yield, high protein content, high roughness, suitable growth period, resistance to fat fall, can be used both for food, especially for the development and application of feed rice has broad prospects. In February 1997 passed the Hunan Province Crop Variety Approval Committee validation. Mutual breeding through the autumn of 1980, with a strong resilience, plant type