随着近几年浦东新区优质米生产的发展,优质杂交粳稻“寒优湘晴”和“浦优801”新组合推广面积迅速扩大,目前“寒优湘晴”、“浦优801”已占我区水稻种植面积90%左右,带来杂交制种面积大幅上升。为进一步提高杂交粳稻制种产量,我们 With the development of high quality rice production in Pudong New Area in recent years, the promotion area of ​​high quality hybrid rice “Han You Xiang Qing” and “Puyou 801” has rapidly expanded. At present, “Hanyu Xiangqing” and “Puyou 801” account for Rice planting area in our region about 90%, resulting in a substantial increase in hybrid seed production area. In order to further improve the hybrid japonica seed production, we