布顿大麦(Hordeum bogdanii Wile-nsky)为禾本科大麦属植物。原产于亚洲,属西亚种群。在我国新疆地区有大量分布,此外,还出现在内蒙古和我国西北地区。该种为多年生疏丛型上繁禾草,通常不单独形成大片群落,往往与同属的野黑麦(H.brevisubulatum)混生,成为草群的优势种。其产草量和营养成份含量均高,适口性好,耐盐碱,在盐碱地上有栽培前途。目前以引起北方各地重视,相继开展了引种和栽培试验。关于布顿大麦的染色体倍性国内外已有报导(Bowden,1965;徐廷文,1984)。但国内野生分布的布顿大麦的核型至今未见报导。为此,本文分析了该种的核型,希望 Hordeum bogdanii Wile-nsky is a Gramineae barley. Originated in Asia, is a West Asian population. In our country there is a large number of distribution in Xinjiang, in addition, also appeared in Inner Mongolia and Northwest China. The species of perennial bush-type grass on the grass, usually not alone form large communities, often with the same genus of wild rye (H.brevisubulatum) mixed to become the dominant species of grass. Its grass yield and nutrient content are high, palatability is good, salt-tolerant, cultivation prospects in the saline-alkali soil. Currently to attract attention in all parts of the North, have carried out the introduction and cultivation experiments. Chromosome ploidy has been reported both in the country and abroad (Bowden, 1965; Xu Tingwen, 1984). However, the karyotype of the domestic wild-type cloth barley has not been reported yet. To this end, this paper analyzes the karyotype, hope