今年我省高粱杂交种的繁殖制种工作,贯彻了中央农业部秋粮种子工作座谈会的精神,有了较好的开展。全省在莒县、汶上、安邱、诸城等二十个县集中建立了一百二十二个繁殖制种区。繁殖了一批不育系,配制了一批遗杂五号、七号、二号,1965年全省虽然遭受了严重的旱灾,但仍然获得了较好收成。初步摸索到一些在大旱年头繁殖、制种的技术经验,现根据各地生产实践经验和有关试验研究资料分别就选地隔离、错期播种、去杂保纯、人工授粉、治虫防鸟、分收分存等几个环节总结如下:一、选择适宜的繁殖、制种地块:选择适宜的地块是繁殖制种的基础条件。今年各地一般都注意了选择比较肥沃、平整并有水浇条件的地块,隔离大部分在四、五百米,个别 This year, the province of sorghum hybrid seed breeding work, implement the spirit of the Central Department of Agriculture Autumn grain seed work forum, has been carried out better. The province has set up 122 breeding and breeding areas in 20 counties, including Pixian, Wenshang, Anqiu and Zhucheng. A number of sterile lines were bred to prepare a batch of spoils No.5, No.7 and No.2. Although the province suffered a severe drought in 1965, it still got a good harvest. Preliminary exploration to some of the first year of drought reproductive, seed production of technical experience, are based on production practices around the trial and relevant research data were isolated on the election, the wrong sowing, to the hybrid pure, artificial pollination, pest control birds, points Collection and storage of several links summarized as follows: First, select the appropriate breeding, seed production plots: Select the appropriate plots of seed production is the basis for breeding conditions. This year, local governments generally pay attention to the selection of plots of relatively fertile, flat and water-irrigated conditions to isolate most of them in the four- and five-hundred-meter