几类异质易恢复小麦雄性不育系杂种籽粒品质研究初报

A preliminary study on hybrid seed quality of some male sterile lines of alloplasmic wheat with good restoration performance

利用具有粘果山羊草 ( Ae.kotschyi)、易变山羊草 ( Ae.variabilis)、偏凸山羊草 ( Ae.ventricosa)和二角山羊草 ( Ae.bicornis)异源细胞质小麦雄性不育系 (以下简称粘、易、偏和二角型 )组配成不同组合的杂种小麦 ,研究这 4种不育系对杂种小麦籽粒品质的影响。结果表明 ,由它们所配制的杂种小麦在蛋白质含量、湿面筋含量、沉淀值等性状上均高于具有普通小麦细胞质的相同核型杂种小麦 ,尤其粘、易型某些组合在湿面筋含量、沉淀值两性状上差异达到显著水平。因此 ,利用这 4种不育系很有希望培育出优质、高产的杂种小麦。

The many hybrid wheat combinations were bred by 4 male sterile types of alloplasmic wheat with Ae.kotschyi,Ae.variabilis,Ae.ventricosa and Ae.bicornis cytoplasms and some restoring lines,and their seed qualities were analysed.The results were as follows:The protein,wet gluten content and sedimentation of all hybrid seeds with 4 alien cytoplasms were superior to those with T.aestivum cytoplasm.The differences of wet gluten content and sedimentation of hybrid seeds with Ae.kotschyi and Ae.variabilis cytoplasms,at 5 percent significant difference,were especially obvious.It is possible to breed hybrid wheat with good quality and high yield by the 4 male sterile lines above.