摘要
1997～1998年,对引自丹麦的草地早熟禾、黑麦草、高羊茅、羊茅、紫羊茅、匍匐剪股颖和白三叶等草坪草的品种在兰州市进行了适应性评价。观测、记载了草坪的成坪期、密度、盖度、颜色、质地、越冬率、越夏率、返青期、枯黄期、青绿期等性状;调查了病害的发病率,并对病株进行了病原物的分离、培养和鉴定,统计了各品种带菌率和真菌的分离率;调查了草坪建植与生长过程中的杂草种类和危害程度。结果表明:除Pichwick和Juventus黑麦草以外的所有参试品种均可在兰州地区种植。其中,白三叶的综合性状最好,具有质地柔滑、成坪较快、覆盖度高、枯黄期晚等特点;其次为ORNAMENTAL和SPORT2个混配型草种,成坪快,但抗病性较差;其余各品种建坪后表现好,但成坪速度较慢。草坪生长过程中的主要病害为交链孢叶斑病、离蠕孢叶斑病、德氏霉叶斑病、壳二孢叶枯病、壳二孢叶斑病、镰刀菌枯萎病和叶点霉叶斑病。苗期主要杂草为狗尾草和田旋花。
Some varieties of Poa pratensis, Lolium perenne, Festuca arundinacea, F rubra, F ovina, Agrostis stolonifera and Trifolium repens were evaluated in Lanzhou city, China The turf establishing period, sod density, coverage rate, color, texture, overwintering rate, oversummering rate, regeneration date, yellowing date and green period were measured The incidences of main diseases, percentages of fungi isolated and turfgrass variety infection were surveyed and measured The weed species and their damage were investigated as well The results show that except Pichwick and Juventus, others were adapted to environment in Lanzhou Among which, Trifolium repens cv Rivendel gave the best comprehensive performance, mixed varieties of Ornamental and Sport were better, others were good The main diseases were leaf spot caused by Alternaria alternata,Bipolaris sorokiniana,Ascochyta trifolii, Phyllosticta spp, melting out by Drechslera poae,leaf blight by As Leptospora and Fusarium blight by Fusarium avenaceum The predominant weeds were Setaria viridis and Convolvulus arvensis during turf establishing period
出处
《草业科学》
CAS
CSCD
2003年第4期68-72,共5页
Pratacultural Science
基金
甘肃省自然科学基金项目(ZR 96 053)资助
关键词
草坪草
引种
适应性
病害
草害
turfgrass
adaptability
evaluation
disease
weed
