灰色关联度在甜高粱材料筛选中的应用

对甘肃省兰州市榆中县中试基地种植的11种甜高粱材料进行试验,以筛选出适合在兰州榆中地区种植的甜高粱材料。采用灰色关联度对材料的茎干鲜重、生物产量、茎杆平均含糖量进行分析,同时参考株高、穗长、穗颈长、物候期等指标,选定适合榆中地区不同用途的甜高粱材料。灰色关联度分析结果:茎秆鲜重、生物产量、茎秆平均含糖量三个指标中,茎秆平均含糖量灰色关联度最大,对结果影响最大;灰色综合评判排序显示08-2、2043、09-1、雅津43号分别排列前4位。08-2、2043、09-1、雅津43号综合表现最好,适合兰州榆中地区种植,可用于饲料生产和生物质能源储备种植。

Application of Grey Relational Degree in Sweet Sorghum Materials Screening

Experiment with 11 sweet sorghum materials planted in Gansu Lanzhou Yuzhong pilot base to screen the sweet sorghum material that suit to plant in Yuzhong Area,Lanzhou.Utilize the grey relational degree to analyze the stem fresh weight,biological yield and stem average sugar content of material and refer to the indexes including plant height,panicle length,panicle neck length and phenological period at the same time,select the sweet sorghum material that suit for different applications in Yuzhong Area.The grey relational degree analysis results show that among three indexes of stem fresh weight,biological yield and stem average sugar content,the stem average sugar content has biggest grey relational degree and it has the biggest influence on results;the grey comprehensive evaluation sorting shows that the top four respectively are 08-2,2043,09-1 and Yajin 43.The 08-2,2043,09-1 and Yajin 43 have the best general performances which are suit to plant in Yuzhong Area,Lanzhou and they are also suitable for forage production and biomass energy reserves plantation.