单基因br_(-2)矮生系在玉米育种中的应用

The Application of Single Gene br_(-2) Dwarf Strain in Maize Breeding

通过连续两年试验，发现应用单基因ｂｒ－ ２ 矮生系与多基因矮生系组配，其Ｆ１ 植株高度可进一步矮化，株叶结构颇近似于较为理想的矮秆型杂交种，为单基因ｂｒ－ ２ 矮生系的应用和培育优良矮秆型杂交种提供了依据，开辟了新的途径。

It was found, after two years' experiment, that to combine single gene br -2 with multigene strains can cause lower plant height for F 1. The constructure of leaves of F 1 plant was a kind of ideal dwarf hybrid variety. This result provided scientific basis to the application of single gene br -2 dwarf strain and the breeding of improved dwarf hybrid varieties.