高寒地区野生垂穗披碱草农艺性状及生产性能评价

摘要

对采自青海省不同海拔和不同地区的7份野生垂穗披碱草(Elymus nutans Griseb.)在西宁地区对其农艺性状及生产性能进行评价,为青藏高原地区筛选育种材料提供理论依据.结果表明:7份材料中采自海南州同德县高寒草甸海拔3201m的4号材料产草量最高,可作为饲草型牧草进行选育；采白果洛州玛多县高寒草原海拔4385m的1号材料表现出较好的综合生产性能和适应性,可作为饲草兼产籽型牧草进行选育.%In order to select accessions for promising forage varieties, the agronomic characters and productivity of seven accessions of wild Elymus nutans Griseb. , collected in the Qinghai-Tibet Plateau in different altitudes, were evaluated in Xining (36°42'139 ' N, 101°44'309"E) . The results showed that accession No. 4 collected in alpine grassland in Tongde County (3201 m a. S. 1. ) had the highest forage yield and can be domesticated to a variety of high forage yield. Accession No. 1 collected in alpine meadow in Maduo County (4385 m a. S. 1. ) had the best adaptation, seed and forage yield; it can be domesticated to a variety for seed and forage production. .