北方农业学报2016，Vol.44Issue(4)：1-8,13,9.DOI:10.3969/j.issn.2096-1197.2016.04.01
基于主成分分析的玉米杂交组合农艺性状综合评价
Comprehensive evaluation of agronomic traits based on principal component analysis of maize hybrids
摘要
Abstract
Comprehensive analysis of 21 groups of maize hybrids by using principal component analysis, compared with CK, we selected 9 superior hybrid combinations, the result of selected 9 superior hybrid combinations as follows: S1-18, S1-4, S1-6, S1-12, S1-13, S1-14, S1-8, S1-19, S1-20 whose period of duration was 106 days and consisted with CK. The photosynthetic characteristics of Pn, Gs, Ci, Tr than CK respectively increased by 13.92%, 16.67%, 8.86%, 0.92%. Hundred grain weight, kernels per spike, rate of seed and yield respectively than CK increased by 5.56%, 0.71%, 0.20%, 9.76%, especially S1-8 and S1-12 among those hybrid combinations had good comprehensive characters , such as period of duration, plant height, ear hight, number of leaves up ear, water content of grain and bract at harvest. Stem internodes puncture strength and breaking strength and number of bracts were consistent with CK , but yield and photosynthetic characteristics were superior to CK, so this two combinations had the available value in breeding.关键词
主成分分析法/杂交组合/农艺性状Key words
Principal component analysis/Hybridized combinations/Agronomic traits分类
农业科学引用本文复制引用
潘天遵,高聚林,苏治军,于晓芳,王志刚,孙继颖,胡树平,刘剑,赵宽厚..基于主成分分析的玉米杂交组合农艺性状综合评价[J].北方农业学报,2016,44(4):1-8,13,9.基金项目
国家玉米产业技术体系（CARS-02-63）；国家粮食丰产科技工程 （）
