摘要
为研究小麦氮利用率,筛选氮高效小麦品种,基于2 a试验结果,采用主成分分析法对27个小麦品种的12个氮效率指标进行研究。结果表明,不同小麦品种间12个氮效率指标均存在不同程度的变异,变异系数为4.95%~30.91%。2017年主成分分析提取的前3个主成分累计贡献率为86.289%,2018年提取的前4个主成分累计贡献率为91.711%,均较全面反映了氮效率信息。结合各品种的氮效率综合得分及小麦产量,初步筛选出高产氮高效小麦品种西农979、许科168、中育1211、郑麦113、洛麦29、周麦28、周麦22、中育1220、新麦29和百农4199,低产氮低效小麦品种周麦27、周麦30、偃高58、洛麦31、西农511、洛麦26、洛麦34、丰德存麦5号、郑品麦8号和漯麦18,低产氮高效小麦品种周麦32,高产氮低效小麦品种兰考198。
In order to study the nitrogen use efficiency of wheat and screen nitrogen-efficient wheat varieties,the principal component analysis method was used to study the 12 nitrogen efficiency indexes of 27 wheat varieties based on the 2 years experiment.The results showed that the 12 nitrogen efficiency indexes all had variation among different wheat varieties,and the coefficient of variation was 4.95%—30.91%.The cumulative contribution rate of the first three principal components extracted by principal component analysis was 86.289%in 2017,and the cumulative contribution rate of the first four principal components extracted was 91.711%in 2018,which fully reflected the nitrogen efficiency information.Combining the comprehensive scores of nitrogen efficiency of each wheat variety and grain yield,the high-yield nitrogen-efficient wheat varieties were Xinong 979,Xuke 168,Zhongyu 1211,Zhengmai 113,Luomai 29,Zhoumai 28,Zhoumai 22,Zhongyu 1220,Xinmai 29 and Bainong 4199;low-yield,nitrogen-low-efficiency varieties were Zhoumai 27,Zhoumai 30,Yangao 58,Luomai 31,Xinong 511,Luomai 26,Luomai 34,Fengde Cunmai 5,Zhengpinmai 8 and Luomai 18;low-yield,nitrogen-efficient variety was Zhoumai 32;high-yield,nitrogen-low efficiency variety was Lankao 198.
作者
宋晓
张珂珂
黄晨晨
黄绍敏
郭斗斗
岳克
张水清
SONG Xiao;ZHANG Keke;HUANG Chenchen;HUANG Shaomin;GUO Doudou;YUE Ke;ZHANG Shuiqing(Institute of Plant Nutrition and Environmental Resources,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;School of Life Sciences,Zhengzhou University,Zhengzhou 450002,China)
出处
《河南农业科学》
北大核心
2020年第12期10-16,共7页
Journal of Henan Agricultural Sciences
基金
国家青年科学基金项目(31801261)
国家重点研发计划项目(2017YFD0301103,2016YFD0300809-3)。
关键词
氮高效小麦品种
主成分分析
氮效率指标
产量
Nitrogen-efficiency wheat variety
Principal component analysis
Nitrogen efficiency index
Yield
