马铃薯近缘栽培种间杂种育种价值的研究

被引:3
作者
肖志敏
王凤义
机构
[1] 黑龙江省农科院
[2] 东北农学院
关键词
马铃薯育种; 实生种子; 新型栽培种; 经济性状; 种间杂种; 商品薯率; 杂种优势; 杂交优势; 杂种后代; 块茎数; 近缘种;
D O I
暂无
中图分类号
学科分类号
摘要
本文对普通栽培种(Solanum Tuberosurm)×新型栽培种(S.Neotuberosum)(T×A)和普通栽培种×2倍体杂种(普通栽培种的双单倍体×S.phureja)(T×2n杂种)两种类型组合后代的主要经济性状,如茎色、株高、单株重、商品薯率、淀粉含量及产量等性状的分离幅度和杂种优势表现进行了比较研究。结果表明,在杂种后代诸性状的表现上,T×2n杂种类型的后代表现分离幅度小,杂种优势强。但由于2倍体杂种自身经济性状不好,使T×2n杂种类型子代的绝对产量低于T×A类型。因此,在现阶段,在育种和实生种子利用上,利用T×A类型的组合更有实际意义。
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页码:15 / 19
页数:5
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