喀斯特生态环境高羊茅新品种比较试验

Summary of comparative testing between new tall fescue varieties in the Karst ecosystem

为鉴定贵州省草业科学研究所选育出的高羊茅"98 1","98 2"和"98 5"等新品种(系)对喀斯特生态环境的适应性,于1999-2001年在喀斯特突出地区、石漠化和水土流失较严重的长江上游,毕节地区农科所进行了品种比较试验。结果表明,高羊茅"98 1","98 2","98 5"和CK1的抗逆性明显优于对照(CK)品种凌志。坪用性状的综合表现,只有高羊茅"98 1"优于对照品种凌志,其余参试品种不如凌志。说明参试的几个高羊茅新品种(系)都适宜喀斯特生态环境种植。其中,高羊茅"98 1"可以作为草坪草在生产上大面积推广应用。

In order to appraise the adaptability to the Karst ecosystem of new varieties of tall fescue including '981','982' and '98-5' that the Guizhou Pratacultural Institute had bred, from 1999 to 2001, comparative experiments were carried out in an area of quite serious desertification and soil erosion on the upper reaches of the Yangtze River at Bijie The results showed the resistance to adversity of the tall fescue varieties '981', '982', '985' and CK1 evidently excelled over that of the CK variety However, looking at lawn use characteristics, only the tall fescue variety '981' was better than the CK variety Therefore, all the tall fescue varieties tested are suitable for the Karst ecosystem, and of these the '981' variety can be widely used as a turf grass