大面积杂交稻制种花期相遇的栽培调控关键技术

介绍了大面积杂交稻制种根据父母本生育特性、制种季节和生态地区合理安排播差期．根据新陈种和用种量调整母本播种期，湖田泥性田花期防父早，新田沙性田花期防父迟，父本“明2暗4”插植，扩大父本株距，培育壮秆大穗多穗稳健父本植株，及早预测和调节花期等运用栽培调控，实现父母本花期相遇关键技术。

Use regulation to achieve large-scale cultivation of hybrid rice flower period to meet key technology

The large-scale hybrid rice seed production in accordance with birth parents of the characteristics of the season for seed production and eco-regional arrangements for a reasonable period of poor broadcast, according to the new or the old seeds and seed species with the female parent sowing time to adjust the volume, low-lying fields and fields of mud Early flowering to prevent the father of the new sand Tian anti-flowering late father, paternal, ＂Ming 2 dark 4＂ implantation, the expansion of paternal spacing in the rows, cultivating strong stalk large number of fringe and tassel healthy male parent plant, at an early stage to predict and adjust Flower cultivation, such as the use of regulation to achieve this flowering parents meet key technology.