对国内外收集的鸭茅种质资源进行综合评价之后 ,开展了一系列育种研究。采用细胞学等研究手段 ,发现我国西南区野生鸭茅种质资源除四倍体外 ,尚有二倍体广泛分布。所有四倍体鸭茅在产草量、品质、适应性和抗逆性等方面均优于二倍体。通过多年的选育 ,育成了优质、高产四倍体新品种宝兴鸭茅 ,并于 1999年经全国牧草品种审定委员会审定登记为新品种。在重点介绍该品种选育推广的基础上 ,对品种特征特性、栽培技术要点等进行了概述。 After a comprehensive evaluation of the germplasm resources collected from China and abroad, a series of breeding studies have been carried out. Using cytology and other means of research, we found that in addition to the four-fold in vitro germplasm resources of wild Dactylis glomerata in southwest China, diploid species are still widely distributed. All tetraploid Dactylis are superior to diploid in yield, quality, adaptability and stress resistance. Through years of breeding, a new high-quality and high-yield tetraploid Baoxing Dactylogyrus was bred and registered as a new variety in 1999 by the National Forage Species Approval Committee. On the basis of introducing the selection and popularization of this variety, the characteristics and characteristics of cultivars and the main points of cultivation techniques are summarized.