不同生育期水分胁迫条件下宁夏枸杞果实的主成分分析与综合评价  

Principal Component Analysis and Comprehensive Evaluation of Ningxia Wolfberry Fruits Under Water Stress in Different Growth Periods

作　　者：郑国保[1] 马玲 撖志明 李苗[1] 刘淑瑛 臧娅妮 孙莹 马小荣 ZHENG Guo-bao;MA Ling;HAN Zhi-ming;LI Miao;LIU Shu-ying;ZANG Ya-ni;SUN Ying;MA Xiao-rong(Agricultural Biotechnology Centre,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,China;Ningxia Hui Autonomous Region Institute of Drug Control,Yinchuan 750002,China)

机构地区：[1]宁夏农林科学院农业生物技术研究中心,银川750002 [2]宁夏回族自治区药品检验研究院,银川750002

出　　处：《节水灌溉》2022年第1期47-51,57,共6页Water Saving Irrigation

基　　金：国家自然科学基金项目(41661108)。

摘　　要：以5年生"宁杞1号"枸杞为试验材料,在营养生长和盛花期、盛果期、秋果期进行水分胁迫处理,分析其外观品质、药用品质和营养品质的差异,利用主成分分析法建立综合评价模型进行品质综合评价。结果表明:不同时期水分胁迫条件下枸杞品质存在差异,将10个品质性状综合成3个主成分因子,在盛果期累计贡献率为82.356 0%,药用品质对枸杞果实品质的影响较大;在秋果期累计贡献率为85.234 7%,营养品质对枸杞果实品质的影响较大;综合评价结果表明在盛果期和秋果期均进行中度胁迫处理可以提高果实的综合品质。In this study,the 5-year-old wolfberry(Lycium barbarum cv. Ningqi1) plants was used as experimental material,and water stress treatment was carried out in vegetative growth,flowering,fruiting and autumn fruiting stages to analyze the differences of its appearance quality,medicinal quality and nutritional quality. Principal component analysis was used to establish a comprehensive evaluation model for its quality. The results showed that the quality of wolfberry was different in different periods under water stress. The 10 quality traits were integrated into 3 principal component factors,and the cumulative contribution rate was 82.356 0% in full fruit stage. The medicinal quality had a great influence on the fruit quality of Lycium barbarum.The cumulative contribution rate was 85.234 7% in autumn fruit stage. The nutrient quality had a great influence on the fruit quality of Lycium barbarum. The comprehensive evaluation results showed that moderate stress treatment in full fruit stage and autumn fruit stage could improve the comprehensive quality of fruit.

关 键 词：宁夏枸杞 水分胁迫 品质分析 主成分分析 综合评价 

分 类 号：S662.1[农业科学—果树学]