欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (2): 80-84.doi: 10.11924/j.issn.1000-6850.2014-1545

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

西藏“一江两河”地区紫花苜蓿生产性能灰色关联综合评价

杨 晓1,李锦华1,朱新强1,余成群2   

  1. (1中国农业科学院兰州畜牧与兽药研究所,兰州 730050；2中国科学院地理科学与自然资源研究所,北京 100101）
  • 收稿日期:2014-05-30 修回日期:2014-05-30 接受日期:2014-08-18 出版日期:2015-03-19 发布日期:2015-03-19
  • 通讯作者: 李锦华
  • 基金资助:
    西藏自治区科技专项“西藏主要栽培豆科牧草繁育研究与示范”(Z2013C02N02)，“抗霜霉病苜蓿品种的示范与推广”(2012F4001002)。

Use of GRA for Comprehensive Evaluation of Alfalfa Cultivars in the “Three Rivers” Region of Tibet

Yang Xiao1, Li Jinhua1, Zhu Xinqiang1, Yu Chengqun2   

  1. (1Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050；2 Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101)
  • Received:2014-05-30 Revised:2014-05-30 Accepted:2014-08-18 Online:2015-03-19 Published:2015-03-19

摘要： 针对西藏“一江两河”高海拔地区豆科牧草种植需求，应用灰色关联综合分析，用总生长高度、茎叶比、鲜干比、越冬率、鲜草产量等指标构建品种评价模型，对20个国内外紫花苜蓿品种在该地区的生产性能进行比较，结果表明参试品种中的综合表现较好的有‘雷西斯’、‘苜蓿王’、‘中兰1号’、‘德宝’、‘赛特’等品种，而‘阿尔冈金’、‘杜普梯’、‘皇后’、‘博勒维’等品种生产性能较低。评价指标中所占的权重顺序为茎叶比>总生长高度>鲜干比>越冬率>鲜草产量。

关键词: 灰色关联分析, 灰色关联分析

Abstract: In order to meet the planting requirements of leguminous forage in the “Three Rivers” region of Tibet，the grey relevancy analysis(GRA) method is used in systematic evaluation, in which the distribution of all variables is analyzed by calculating the grey relational degrees. In this study, the productivity performances of 20 alfalfa cultivars in the “Three Rivers” region of Tibet were evaluated, using indexes including plant total height, stem-leaf ratio, fresh-dry ratio, wintering rates and fresh yield, a comprehensive cultivar evaluation model was established. The results indicated that cultivars including ‘Resis’, ‘Alfaking’, ‘Zhonglan No.1’, ‘Derby’ and ‘Sitel’ have relatively good productive performance, while ‘Algonquin’, ‘Deputes’, ‘Alfalfaqueen’ and ‘Beaver’ have relatively low adaptability. The order of 5 indexes in the grey relevancy analysis for weight was: stem-leaf?ratio>plant total height>fresh-dry?ratio>wintering rates>fresh yield.