| 坪用草地早熟禾28个品种扩展性的比较研究 |
| |
| 引用本文： | 柴琦,王彦荣,孙建华.坪用草地早熟禾28个品种扩展性的比较研究[J].草业学报,2002,11(4):81-87. |
| |
| 作者姓名： | 柴琦 王彦荣 孙建华 |
| |
| 作者单位： | 兰州大学草地农业科技学院甘肃草原生态研究所,兰州,730020 |
| |
| 基金项目： | 国家 8 63项目 (2 0 0 1 AA2 4 4 0 81 )，农业部九五重点科研项目 (95农 - 1 1 - 0 1 - 1 2 )，甘肃省 333科技人才工程项目 (甘人事
[2 0 0 1 ] 67号 )资助。 |
| |
| 摘 要： | 在室内盆栽和田间穴播条件下对引自欧、美等国的28个坪用草地早熟禾品种的扩展性进行了比较研究，扩展性的评价参数采用最大扩展距离（MED），实际覆盖面积（ACA），潜在覆盖面积（PCA）和分薛能力（TC），结果表明：供试品种的扩展性存在极显著差异（P＜0．01），盆栽3月龄的分薛率和分薛数品种间的变化分别为19．1％－83．5％和1．1－2．9蘖／株，田间播种当年生长季末品种间测定参数的变化值MED为27．3－63．5cm/株，ACA为240．4－930．2cm^2／株，PCA为306．6－1670．2cm^2/株，TC为245．5－567．8蘖／株，依据上述4个参数进行平均数加权聚类分析表明，供试品种的扩展性可分为最大，中等和最小3个级别，扩展性最大的品种为Baronie,Fylking,Geronimo,Julia,Mardona,Monoply等6个，中等的品种18个，如Barlin,Baron,Merit,Ram 1和Sydsport等；最小的包括Andante,Compact,Conni和Elysee4 个品种。
|
| 关 键 词： | 坪用草地 早熟禾 品种扩展性 引种 |
| 文章编号： | 1004-5759(2002)04-0081-07 |
| 修稿时间： | 2002年1月11日 |
Studies on expanding capacity of 28 turf-type varieties of Kentucky bluegrass |
| |
| CHAI Qi,WANG Yan-rong,SUN Jian-hua.Studies on expanding capacity of 28 turf-type varieties of Kentucky bluegrass[J].Acta Prataculturae Sinica,2002,11(4):81-87. |
| |
| Authors: | CHAI Qi WANG Yan-rong SUN Jian-hua |
| |
| Abstract: | The expanding capacity of 28 Kentucky bluegrass varieties introduced from Europe and America was studied in greenhouse and field at Lanzhou, Gansu, China, in 2001. Parameters used for study including maximum expanding distance (MED), actual coverage area (ACA), potential coverage area (PCA) and tillering capacity (TC). The results indicated that the expanding capacity were significantly different (P<0.01) among the tested varieties. The tillering rate of tested plants and the tiller number per tillered plant among the varieties varied from 19.1% to 83.5% and from 1.1 to 2.9 tillers per plant, respectively, after 3 month growth in the greenhouse. At the end of sowing year in the field, the parameter values among the varieties ranged from 27.3 to 63.5 cm per plant for MED, from 240.4 to 930.2 cm2 per plant for ACA, from 306.6 to 1670.2 cm2 per plant for PCA, and from 245.5 to 567.8 tillers per plant for TC. The expanding capacities were divided into 3 groups by cluster analysis method based on weighted mean of the above 4 parameters. The maximum capacity group included following 6 varieties: Baronie, Fylking, Geronimo, Julia, Mardona and Monoply. The medium capacity included 18 varieties, the examples are Barlin, Baron, Merit, Ram 1 and Sydsport. The minimum capacity included varieties of Andante, Compact, Conni and Elysee. |
| |
| Keywords: | turf-type Kentucky bluegrass expansibility cluster analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
