一、利用远缘杂交培育的新品种为了提高草种的生产力和综合性状,科学家们利用远缘杂交的育种手段,进行属间或种间杂交,获得了极具杂种优势的新品种。如“先锋”高丹草、“绿浪”高麦草、“百盛”多年生黑麦草(多年生和一年生黑麦草的种间杂交四倍体品种)等。“先锋”高丹草兼用 First, the use of distant hybridization to breed new varieties In order to improve grass productivity and comprehensive traits, scientists use distant hybridization breeding methods for inter-genus or interspecific hybridization, access to highly hybrid new varieties. Such as “Pioneer” Dan Dancao, “Green Wave” tall wheat grass, “Parkson” perennial ryegrass (perennial and annual ryegrass interspecific hybridization tetraploid varieties) and so on. “Pioneer” Dan Dan both