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“武育粳3号”与“黄华占”杂交后代的部分性状分析

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摘要 "武育粳3号"不抗条纹叶枯病且产量潜力不如新育成的品种,为改良其丰产性,通过籼粳杂交育种,在保持其食用品质不变的前提下,对BC1、BC2、BC3、BC4及单交后代株系进行了部分性状分析。结果表明,绝大多数株系分离严重,表明籼粳杂交育种由于双亲性状差异大,后代杂合性强,纯合稳定速度慢,育种周期长。同时,根据田间目测,筛选出40个性状基本稳定、抽穗期与轮回亲本相近的株系,且主要农艺性状考查结果表明,多数株系的性状表现介于双亲之间,株系间差异显著。
出处 《上海农业科技》 2017年第5期43-47,共5页 Shanghai Agricultural Science and Technology
基金 江苏省常州市科技局科技支撑项目(编号:CE20162007) 国家重点基础研究发展计划(973计划)
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