seed contamination

It is important to decide how to rejuvenate reduced mutation accumulation of stored seed, and counteracted the genetic changes by drift, fitness selection and contamination with alien pollen or seed that may occur during regeneration.

降低贮藏种子基因突变的累积效应，控制种质资源繁殖更新过程中由于遗传漂变、选择和污染所引起的遗传改变，对制定科学的种质资源繁殖更新策略十分重要。

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When mechanical contamination is completely eradicated in the process of wheat seed reproduction by the technology of no-removing the off-types, the purity of foundation seeds and certified seeds are mainly determined by two factors of the breeder seed purity and the natural cross-pollination rate.

采取免去杂技术繁殖小麦种子时，决定所繁殖原种和良种纯度的2个主要因素是繁殖种纯度和品种天然异交率。

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They may also be used in Feather Duster areas and Robot Zones to capture falloff and spills in order to reduce cleanup and prevent dirt seed contamination.

还可用于鸵鸟毛清洁区或机械手工作区，吸附散落的碎片和油漆飞溅，方便事后清洗和减少污染源。

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