3种引进禾本科牧草的染色体核型研究  

Karyotype analysis on 3 introduced forage species

作　　者：刘迎春 胡勇[2] 

机构地区：[1]青海省畜牧厅畜牧工程项目办公室,西宁810008 [2]青海省畜牧兽医科学院,西宁810003

出　　处：《四川草原》2002年第4期40-42,共3页Journal of Sichuan Grassland

基　　金：青海省人事厅出国留学人员科研基金的资助

摘　　要：本文报道了从国外引进的多年生禾本科牧草鸭茅、粗穗冰草和　草的染色体数目、形态和核型,鸭茅和粗穗冰草的染色体数目28,基数是7,是四倍体;　草染色体数目14,基数是7,是二倍体。Karyotype of perennial gramineae species Orchard grass (Dactylis glomerata),western wheat-grass(Agropyron dasystachyum) and June grass (Koeleria cristata),introduced from overseas,have been investigated.The chromosome number and basic chromosome number of Orchard grass and Western wheat-grass were all 28,x=7,they were tetraploids.Chromosome number and basic chromosome number of June-grass was 14,x=7,it was a diploid.

关 键 词：引进禾本科牧草 染色体核型 鸭茅 粗穗冰草 Tai草 形态 

分 类 号：S540.3[农业科学—作物学]