1选育目的湖南省特殊的地理位置、特殊的气候条件和农民种植习惯,对早稻的生育期和抗性有比较特殊的要求。在湖南,农民喜欢种植生育期适中、抗性较好、有利于早、晚稻搭配的品种,三系杂交早稻组合由于受野败胞质和恢保关系的影响,一般生育期偏长,不利于晚稻高产优质组合的搭配, Breeding purposes Hunan Province, a special geographical location, special climatic conditions and peasant planting habits, the growth and resistance of early rice has more special requirements. In Hunan, farmers like to plant moderate growth period, better resistance, is conducive to early and late rice with varieties, early three-line combination of early rice due to the relationship between the loss and the protection of the relationship between the impact of the loopholes, the general growth period is too long, not conducive to Late rice high-yielding mix of quality,