摘要
为了筛选出综合性状优良的玉米姊妹系,本研究分别利用灰色关联度、DTOPSIS法与模糊概率法,通过加权关联度值、Ci值与P值对玉米自交系‘ZOL-1’及其19个姊妹系的16个主要性状指标进行综合评价并筛选。结果表明,灰色关联度和DTOPSIS法的计算结果显示均有5个姊妹系位列前七,分别为:L18、L17、L6、L16和L5;而模糊概率法排在前七位的姊妹系为L2、L18、L6、L15、L19、L16和L3,并且这3种方法的分析结果与产量结果均存在差异,说明综合性状表现良好的姊妹系并不代表其产量也高。本研究通过分析得出L18、L6和L16姊妹系综合表现较好,可将其作为组配玉米杂交种的优良基础材料。
In order to select maize sister lines with excellent comprehensive characters,grey relational grade,DTOPSIS method and fuzzy probability method were used to comprehensively evaluate and screen 16 main traits of sister lines of maize inbred line'ZOL-I'by weighted relational grade value,Ci value and P value in this study.The results showed that the grey relational grade and DTOPSIS method showed that there were five sister lines in the top seven,which were L18,L17,L6,L16 and L5 respectively,while the top six sister lines ranked by the fuzzy probability method were L2,L18,L6,L15,L19,L16 and L3.Moreover,the analysis results of three methods were different from the yield results,which indicated that the sister line with good comprehensive characters did not mean that its yield was also high.According to the analysis,sister lines L18,L6 and L16 had better comprehensive performance,which could be considered as excellent basic materials for combining maize hybrids.
作者
黄婷
张思亲
王治中
李靖
赵自仙
Huang Ting;Zhang Siqin;Wang Zhizhong;Li Jing;Zhao Zixian(The Key Laboratory for Crop Production and Smart Agriculture of Yunnan Province,Kunming,650201;College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming,650201)
出处
《分子植物育种》
CAS
北大核心
2023年第15期5199-5212,共14页
Molecular Plant Breeding
基金
云南省重大科技专项-绿色食品国际合作研究中心专项课题(2019ZG00902)资助。
关键词
玉米姊妹系
灰色关联度分析
DTOPSIS法
模糊概率法
综合评价
Maize sister lines
Grey relational degree analysis
DTOPSIS
Fuzzy probability method
Comprehensive evaluation
