间套复种小麦--早优504的选育

Breeding of the new wheat variety,Zaoyou 504,suitable for interplant and multiple cropping

摘要: 本文以八倍体小偃麦中₅为远缘亲本材料，通过远缘杂交，染色体工程与常规育种技术相结合的方法，选育出一个适合间套复种的小麦新品种--早优504。该品种具有特早熟、矮秆、株型紧凑、叶片上挺、抗病、优质、高产等优良性状。

Abstract: This paper introduced the procedures of breeding Zaoyou 504,an new wheat variety,which has the characteristics of disease,high yield and fine quality,and is suitable for interplant and multiple cropping.By combination of distant crossing, chromosome engineering and conventional breeding technicals Zaoyou 504 was developed by crossing between octoploid tritielytrigia Zhong 5 and Triticum aestivum.