中文摘要：

应用灰色关联度分析法，以株高、分蘖数、鲜草产量、干草产量和鲜干比5个性状为评价指标，对天祝高寒草甸区种植的36种燕麦品种的生产性能进行了综合描述和量化评估，通过对各品种加权关联度的比较，较为全面、客观地评价了其品种的优劣和应用价值。结果表明，在所有供试品种中青永久199（Avena Sativa L cv．Qingyongjiu NO．199）表现最好，生产性能最高，其次是白燕麦7（Avena Sativa L．CV．Baiyanmai NO．7）、青永久321（Aveact Sativa L．cv．QingyongJiu NO．321）、青永久958（Avena Sativa L．CV．QingyongJiu NO．958）和CNC燕麦（Avena Sativa L ．CV．CNC）。这5个燕麦品种与“参考品种”的加权关联度都大于等于0．65，可作为海拔在3000m左右的高寒草甸区种植高产燕麦人工草地的理想品种。此外青永久255（Avena SativaL．CV．Qingyongjiu NO．255）、青永久97（Avena Sativa L．CV．Qingyong Jiu NO．97）等8个燕麦生产性能较高，表现较好，可适当推广种植。

英文摘要：

By the grey correlative degree analysis, taking plant height, tiller number, total fresh forage yield, total dry forage yield and fresh/dry ratio as five evaluation traits, production performances of 36 oat varieties planted in Tianzhu alpine meadow were appraised comprehensively. The results showed that A vena Sativa L. cv. Qingyongjiu NO.199 had the best performance and highest productivity among tested varieties, followed by Avena Sativa L.cv. Baiyanmai NO.7, Avena Sativa L. cv. Qingyongjiu NO.321, Avena Sativa L. cv. Qingyongjiu NO.958 and Arena Sativa L.cv.CNC. The weighted correlations between these five varieties and referenced varieties were all the same as or higher than 0.65, this result indicated that these five varieties could be used as the main high-yielding planting varieties in alpine meadow area with the elevation about 3 000 m. 8 species of oats, including Avena Sativa L. cv. Qingyongjiu NO.255 and Avena Sativa L. cv. Qingyongjiu NO.97, had higher productivity and better performance, and could be introduced to be cultivated appropriately.