Methods for Producing Maize(Zea mays L.) Haploids and Their Application in Maize Breeding

This article summarizes the research progress inthe breeding of maize haploids, including the production and identification of maize haploids, especially the methods to produce doubled haploids and the selection of basic materials, as well as the applications of the maize haploids in maize breeding. Finally, this article pro- poses several issues researchers should pay attention to, and the prospects of hap- Ioids in maize breeding.

特用型甜糯玉米“红血糯”高产模式化栽培

为配合红壤丘陵地区农业种植结构调优，特推荐特用型甜糯玉米红血糯：一季亩产青果穗4000根左右，约750公斤，除副产品外，仅卖青果穗亩产值在2．000元左右，纯收入在1500元以上，大面积生产一季也可亩获千元以上收入；如双季种植，效益更为显著；间作套种可明显提高土地产出，增加农产品总量，取得良好的经济效益和社会效益。