摘要
为研究陇东地区马铃薯相关农艺性状对其产量的影响,对甘肃省主推的9个马铃薯品种(系)的农艺性状区域试验数据进行了灰色关联度分析与主成分分析。灰色关联度分析结果表明:马铃薯产量与各农艺性状的关联度大小依次为单株块茎质量>单株块茎数>主茎数>株高>干物质含量>生育期>淀粉含量,其中单株块茎质量、单株块茎数和主茎数这三个性状与产量的关联度均大于0.7,这是影响产量的主要因素。主成分分析结果表明:单株块茎质量、单株块茎数、主茎数这三个主成分累计贡献率达94.17%,反映了评价性状的绝大部分信息。研究表明:选择单株块茎质量大,单株块茎数、主茎数、株高适中的品种(系)是提高陇东地区马铃薯产量的重要保证。
In order to study the effect of potato agronomic characters on yield in Longdong area,the regional test data of agronomic characters of 9 potato varieties mainly promoted in agricultural production in Gansu Province were analyzed by grey relational analysis and principal component analysis.Grey relational analysis results showed that the correlation degree between potato yield and agronomic characters was as follows:tuber quality per plant>tuber number per plant>main stem number>plant height>dry matter content>growth period>starch content.The correlation degree between tuber quality per plant,tuber number per plant and main stem number and yield was greater than 0.7,which was the main factor affecting yield.The results of principal component analysis showed that the cumulative contribution rate of the three principal components was 94.17%,which reflected most of the information of evaluation characters.The results showed that the selection of varieties with high tuber quality,appropriate tuber number,main stem number and plant height per plant was an important guarantee to improve potato yield.
作者
李丹
马平
杨芳
乔岩
LI Dan;MA Ping;YANG Fang;QIAO Yan(College of Agriculture and Forestry,Longdong University,Qingyang 745000,Gansu)
出处
《陇东学院学报》
2023年第5期88-92,共5页
Journal of Longdong University
基金
国家自然科学基金地区科学基金项目(31960441)
甘肃省自然科学基金(18JR3RM236)
陇东学院博士科研启动基金项目(XYBY1706)
陇东学院青年科技创新项目(XYZK202002)。
关键词
马铃薯产量
农艺性状
灰色关联度分析
主成分分析
potato yield
agronomic character
gray relational analysis
principal component analysis
