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良种繁育的任务?

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①生产优质种子,实行品种的更换和更新,迅速大量繁育新品种,现有良种的优质种子,提纯复壮后的原种;②防止品种混杂退化,保持良种种性。种子生长过程中, 保证良好的生长环节和栽培条件, 熟悉品种的特征特性, 加强纯度鉴定,分期观测选择,并检验种子质量,提供质量好,纯度高的优良品种种子。

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