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草品种提纯复壮
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草品种提纯复壮
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农学
草品种提纯复壮
释
purification and rejuvenation of grass varieties
草品种提纯复壮
采用适当的选种措施,结合除杂去劣,选择保留符合本品种原有典型性状的单株,并采用良好的栽培方法逐步扩大繁殖其种子,使种子由杂转纯,由退化复壮,以获得相对纯的、生活力强的、无混杂退化的种子,用以替换已混杂退化的种子,使退化的草品种恢复其原来的生产能力、优良品质和抗性水平的方法。
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