摘要
为了给淀粉型甘薯新品种的选育工作提供依据,采用灰色关联分析法探讨了甘薯的9个农艺性状与其淀粉产量之间的关联度。结果表明:甘薯主要性状与淀粉产量之间的关联度依次为:鲜薯产量>干物率>出粉率>单株分枝>单株结薯数>中薯率>单株蔓重>最长蔓长>大薯率。与淀粉产量最为密切的相关性状是鲜薯产量,关联度为0.9229,其次是干物率,关联度为0.9060,大薯率影响较小。因此,在选育高淀粉甘薯新品种时,应该多选择鲜薯产量高、干物率高、出粉率高、分枝数较多以及中等薯块数量较多的品种。
In order to provide selection basis for new starch type sweet potato breeding, the grey relational analysis was used to study the association between nine agronomic traits and starch yield. The results showed that the order of nine traits on grey relational degree with starch yield was fresh root weight 〉 drying material rate 〉 flour yield 〉 the number of branch per plant 〉 the number of tuberous root per plant 〉 percentage of middle tuberous root 〉 we stem and leaf per plant 〉 the best length of vine 〉 percentage of large tuberous root. The fresh root weight h largest contribution to starch yield, with a correlation of 0.9229 ight of ad the , and the second largest was drying material rate with tuberous root was relatively minimum. Accordingly, higher yield of fresh root, dry mater ratio and flour yield, more branch number, and higher percentage of middle tuberous root were pre- ferred on the breeding of new sweet potato variety with high starch yield.
出处
《作物杂志》
CAS
CSCD
北大核心
2014年第1期30-32,共3页
Crops
基金
福州市科技发展基金项目"能源型抗病甘薯新品种的选育与主要害虫综防技术研究"(2012-N-63)
关键词
灰色关联分析
淀粉型甘薯
淀粉产量
农艺性状
Grey relational analysis
Sweet potato
Starch type
Starch yield
Agronomic traits
