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玉米种子质量问题已成为关系一个种业的兴衰存亡和农村稳定和谐的重要因素,而根据种子管理部门提供的数据,最近几年玉米种子的芽率有了很大提高,但是纯度偏低的现象还是普遍存在,为避免发生种子质量事故,在玉米杂交制种过程中,防杂保纯已成为生产过程的重中之重。从源头把住亲本质量关亲本种子质量低、管理不严、来源多、繁种单位多,是影响玉米大田生产的一大隐患。亲本在生产过程中多年多代繁殖、套袋提纯人员责任心差、隔离区不够、生产中没有全程彻底干净去杂去劣、收获后农户管理不善造成人为混杂,
Maize seed quality has become an important factor in the relationship between the rise and fall of a seed industry and the stability and harmony in rural areas. According to the data provided by the seed management department, the seed germination rate has been greatly improved in recent years, but the phenomenon of low purity Or widespread, in order to avoid the occurrence of seed quality accidents, hybrid seed production in the process of hybrid protection pure has become the top priority of the production process. From the source to handle the parental quality off the parent seed of low quality, lax management, multiple sources, many kinds of breeding units, is a major risk affecting the production of corn field. Parents in the production process for many years multiplication, bagging purification staff responsibility, isolation area is not enough, the production is not completely clean to go bad, poor farmers after harvest caused miscellaneous man-made,