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作 者 ：王竹林 宋喜悦

期 刊 ：西北植物学报 1999年 6期

关键词：K型杂交小麦；粒重；潜在因素；遗传分析；

Keywords:hybrid wheat, potential grain weight, genetic model,

摘 要 ：1996-1997年采用5×7不完全双列杂交，对影响K型杂交小麦粒重的潜在因素进行分析。结果表明，K型杂交小麦粒重与胚乳细胞数和鲜籽烂一最大体积呈极显正相关。鲜籽粒最大体积对粒重贡献较大；胚乳细胞数的杂种优势较弱，鲜籽粒最大体积的杂种优势十分明显；这两个性状均符合加性-显性遗传模型。以加快效应为主，存在明显的母体效应。

Abstract:The potential causes effecting the grain weight were analysed in hybrid wheats crossed with 5 A line of Ae.kotschyi cytoplasm and 7 R lines in 1996-1997.The results showed that there was very significant correlationship between the grain weight (GW) a

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