冈优系列组合在我省的杂交稻栽培面积中占有很大的比例。由于冈优系列组合 F1代种子本身的特性，在催芽时应当特别注意。 　　一、冈优组合 F1代种子皮薄，裂颖粒多 在 3月底 4月初浸种育秧时应注意药剂浸种时间不宜太长，避免药剂伤胚。用 500倍液强氯精浸种不超过 12小时， Gang You series combination in the province of hybrid rice cultivation area occupies a large proportion. Due to the characteristics of the F1 generation seed of Gangyou series, special attention should be paid when germinating. First, the Gang You combination F1 seed seedling thin, cracked grain at the end of March early April soak seedlings should pay attention to seed soaking time should not be too long, to avoid drug injury embryos. With 500 times the liquid chlorine soaked fine soaking no more than 12 hours,