中国马铃薯2025，Vol.39Issue(5)：364-376,13.DOI:10.19918/j.cnki.1672-3635.2025.05.007
马铃薯植株性状随时间变化规律及与产量性状的相关性分析
Analysis on Temporal Variation of Potato Plant Traits and Their Correlation with Yield Traits
摘要
Abstract
This study aims to establish an effective yield estimation model by analyzing the correlation between plant traits and yield traits in potatoes,specifically examining the relationship between readily obtainable morphological and physiological indicators and final yield.The potato variety'Yanshu 4'was planted as the test material,and continuous whole-plant excavation was used for field sampling.The various organs(leaves,stems,roots,and tubers)of the sample plants were separated and sorted,and the correlation parameters were measured.Then,the samples were dried and weighed to determine the dry matter content of each organ.Based on the data obtained,the temporal variation trends of plant traits and their correlations with yield traits were analyzed.There was a high correlation between the changes in organ traits of potatoes and temporal changes,with R2 values all above 0.7.The average times for the theoretical physiological maxima of leaves,stems,and roots to appear were 74.69,76.70,and 77.91 days after sowing,respectively.The experiment also identified additional plant traits correlated with the fresh weight,dry weight,and dry matter content of tubers,and established corresponding regression equations.However,no plant traits correlated with the number of potato tubers were obtained.The above function equation provides theoretical support for future calculation and determination of yield traits—such as fresh weight,dry weight,and dry matter content—based on potato plant traits(dry weight and dry matter content),thereby further guiding practical agricultural production.关键词
马铃薯/植株性状/产量性状/相关性/变形值Key words
potato/plant trait/yield trait/correlation/converted value分类
农业科技引用本文复制引用
徐宁,倪朝阳,马力,刘冬雪,张洪亮,姜民旭,许亚坤,张荣华..马铃薯植株性状随时间变化规律及与产量性状的相关性分析[J].中国马铃薯,2025,39(5):364-376,13.基金项目
黑龙江省自然科学基金项目(LH2023C005 （）
LH2021C084) （）
黑龙江省马铃薯产业技术协同创新推广体系. （）
