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我省自1960年开始繁殖、推广玉米双交种工作,几年来卓有成就:肯定了双交种的增产效果和适宜种植的组合;创造了“依靠群众繁殖、制种为主,国家为辅”的省、专、县三级分工和县级自行规划的经验,逐步达到自繁、自制、自用的要求;选择了适宜的国营农牧埸改建为专埸,生产原种,和特约科研机关提供超级原种,从而使纯度得到保证。
Since 1960, the province began to multiply and popularize the breeding work of corn double crossbreed. In recent years, it has made remarkable achievements. It affirmed the combination effect of double cross breeding and suitable planting. It has created “relying on the breeding of the masses, ”, The provincial, prefectural and county levels of division of labor and county-level self-planning experience, and gradually reach the free-breeding, self-made, for their own use; select the appropriate state-owned farming and animal husbandry 埸 converted into a special 埸, the production of original species, and special scientific research institutions Provide super species, so purity is guaranteed.