0引言当一个新品种审定通过后,便应有数量多、质量好的种子供生产应用,使之尽早地在生产上发挥作用。但是,新育成或新引进的品种,开始一般种子的数量较少,需加快繁殖,供生产需要。同时,一个新品种随着系列世代和使用年限的延长,种子质量会下降,影响其使用价值和经济效益。所以加速新品种繁殖,对于加快良种的推广、普及,尽快发挥作用具有重要意义。 0 Introduction When the approval of a new variety, there should be a large number of high-quality seeds for production and application, so as soon as possible to play a role in production. However, newly reared or newly introduced breeds will start with fewer seeds in general and will need to be bred for production. At the same time, as a new breed extends its range of generations and useful lives, the quality of the seeds will decline, affecting its value and economic benefits. Therefore, to speed up the breeding of new varieties is of great significance for accelerating the popularization and popularization of improved varieties as soon as possible.