杂交水稻在美国实行机械化制种的要求和前景

The Requirements for Mechanization of Hybrid Rice Seed Production in USA and Its Prospects

作者于１９８５～１９８８年在美国圆环种子公司、德克萨斯州农场指导杂交稻制种。本文概述了美国杂交水稻机械化制种的发展简况，分析了美国对杂交水稻制种的技术要求，即：父母本播差期的一致性。不喷或少喷赤霉素、对美国栽培制度的适应性等；介绍了美国杂交稻制种中新技术的运用和设想。最后就杂交水稻在美国机械化制种的前景提出了看法。

In the paper the mechanization of hbryidrice seed production in USA is briefly descri- bed.The requirements for mechanization of hybrid rice seed production include: to correctly determine the differercce in sowing date for synchronization between male and female parents,not to do spray or only do minimum spray of gibberellin,to be adaptable to the cropping system practised in USA etc.In addi- tion. the new techniques ror hybrid rice seed production used in USA is introduced. Lastly. the prospects for mechanization of hybrid rice seed production in USA are discussed