很多热带禾草品种因其繁殖力低,从单个花序获得的种子数目少;花序通常多而疏松,套袋杂交需要大量袋子;为防止折断茎杆还需大量的支撑物,套袋后袋内湿度大,空气不流通,易引起腐生霉菌的生长;加之准备作为父母本的植株生长状况差异很大,所以采用常用的手工去雄或套装相互授粉杂交的方法,很不适合于热带禾草的杂交育种。本文描述了克服热带禾草杂交育种疑难问题的一种装置。 Many tropical grass species have fewer seeds from a single inflorescence because of their low fertility; inflorescences are usually numerous and loose, require large numbers of bags for bagging, and require extensive support to prevent breakage of the stems. Humidity, the air does not flow through, easily lead to the growth of saprophytic fungi; combined with the preparation for the parental plant growth conditions vary widely, so the commonly used manual dehuaxing or set of mutual pollination hybrid method is not suitable for tropical grass Hybrid breeding. This article describes a device that overcomes the difficult problems of crossbreeding in tropical grasses.