| 用灰色关联系数法对苜蓿品种生产性能综合评价 |
| |
| 引用本文： | 慕平,魏臻武,李发弟.用灰色关联系数法对苜蓿品种生产性能综合评价[J].草业科学,2004,21(3):26-29. |
| |
| 作者姓名： | 慕平 魏臻武 李发弟 |
| |
| 作者单位： | 甘肃农业大学,甘肃,兰州,730070;甘肃农业大学,甘肃,兰州,730070;甘肃农业大学,甘肃,兰州,730070 |
| |
| 摘 要： | 在灰色系统下,对13个苜蓿Medicago sativa品种在兰州的生产性能用株高、再生速度、鲜草产量、分枝数、叶量等指标进行分析,建立品种评价模型,综合评价各品种的生产性能.结果表明,在兰州地区生产性能表现较好的苜蓿品种有L33、新疆大叶、L173、PL55、Algongun等, 而河西、陇东、陇中等品种生产性能较低.根据各项指标的权重比较分枝数所占的权重>株高>叶量>鲜草产量>再生速度.
|
| 关 键 词： | 苜蓿 灰色关联度 生产性能 综合评价 |
| 文章编号： | 1001-0629(2004)03-0026-04 |
Use of the grey relevancy coefficient method for comprehensive evaluation of the productive performance of alfalfa cultivars |
| |
| MU Ping,WEI Zhen-wu,LI Fa-di.Use of the grey relevancy coefficient method for comprehensive evaluation of the productive performance of alfalfa cultivars[J].Pratacultural Science,2004,21(3):26-29. |
| |
| Authors: | MU Ping WEI Zhen-wu LI Fa-di |
| |
| Abstract: | The grey relevancy coefficient method has been widely used in systematic evaluation in recent years, in which the distribution of all variables is blurred and analyzed by calculating the grey relational degrees. In this study, the productivity performances in Lanzhou of 13 alfalfa cultivars were evaluated using indexes including plant height, regrowth speed, fresh forage yield, branch number, and leaf yield. A comprehensive cultivar evaluation model was established. The results indicated that in the Lanzhou area, cutivars including L33, L173 introduced from Australia, Xinjiang Daye, PL55 and Algongun have relatively good productive performance, while Hexi, Longdong, Longzhong and other local cultivars have relatively low productivity. The order of 6 indexes in the grey relevancy analysis for weight was: branch number > plant height > leaf yield > fresh forage yield > regrowth speed. |
| |
| Keywords: | alfalfa grey relevancy productivity comprehensive evaluation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
