106份特色甘薯品种资源品质性状评价与分析  

Evaluation and analysis of quality characters of 106 special sweetpotato variety resources

作　　者：赵凌霄 邓逸桐 衡曦彤 程娟 袁博 赵冬兰[1] 戴习彬 曹清河[1,2] ZHAO Ling-xiao;DENG Yi-tong;HENG Xi-tong;CHENG Juan;YUAN Bo;ZHAO Dong-lan;DAI Xi-bin;CAO Qing-he(Jiangsu Xuhuai Regional Xuzhou Institute of Agricultural Sciences,Xuzhou 221131,China;School of Life Sciences,Jiangsu Normal University,Xuzhou 221116,China;College of Chemical Engineering,China University of Mining and Technology,221116,China;Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province,Jiangsu Normal University,Xuzhou 221116,China)

机构地区：[1]江苏徐淮地区徐州农业科学研究所,江苏徐州221131 [2]江苏师范大学生命科学学院,江苏徐州221116 [3]中国矿业大学化工学院,江苏徐州221116 [4]江苏师范大学江苏省药用植物生物技术重点实验室,江苏徐州221116

出　　处：《江苏农业学报》2021年第4期839-847,共9页Jiangsu Journal of Agricultural Sciences

基　　金：国家重点研发计划项目(2018YFD1000705、2018YFD1000700);现代农业产业技术体系专项(CARS-10-B1);农业农村部作物品种资源保护费项目(19200362);江苏省根茎类作物种质资源库项目(JSGB2018-03);徐州市政策引导类计划项目(KC18245)。

摘　　要：以来自不同育种单位的54份橘肉甘薯和52份紫肉甘薯品种资源为材料,测定块根中淀粉、可溶性糖、还原糖、粗蛋白、β-胡萝卜素和花青苷的含量。结果表明,橘肉甘薯的可溶性糖和还原糖含量通常高于紫肉甘薯,淀粉含量低于紫肉甘薯,粗蛋白含量与紫肉甘薯类似;橘肉甘薯的β-胡萝卜素含量为0.4~280.7μg/g,紫肉甘薯的β-胡萝卜素含量最高为31.8μg/g,花青苷含量为15.0~20.0μg/g。相关性分析结果表明,淀粉含量和可溶性糖含量、还原糖含量呈极显著负相关。基于6种营养物质的含量,分别将橘肉甘薯和紫肉甘薯品种资源聚为5个和4个类群;其中,二者均为第II类群种质资源综合品质较好。本研究结果为这些甘薯品种资源的加工利用及品种改良提供理论参考和材料基础。In this study,54 orange-fleshed and 52 purple-fleshed sweetpotato germplasm resources from different breeding units were selected as experimental materials.The contents of starch,soluble sugar,reducing sugar,crude protein,β-carotene and anthocyanins were determined.The results showed that the contents of soluble sugar and reducing sugar in orange-fleshed sweetpotatoes were higher than those in purple-fleshed sweetpotatoes,but starch content was lower than that in purple-fleshed sweetpotatoes and crude protein content was similar to that in purple-fleshed sweetpotatoes.Theβ-carotene content of orange-fleshed sweetpotatoes ranged from 0.4μg/g to 280.7μg/g,the highestβ-carotene content of purple-fleshed sweetpotatoes was 31.8μg/g,and the total anthocyanin content of purple-fleshed sweetpotatoes ranged from 15.0μg/g to 20.0μg/g.Correlation analysis results showed extremely significant negative correlation between starch content and soluble sugar content or reducing sugar content.Based on the contents of six categories of nutrients,the varieties of orange-fleshed sweetpotatoes and purple-fleshed sweetpotatoes were divided into five and four groups,respectively.The comprehensive quality of group II in both groups was better.The results provided theoretical reference and material basis for the processing and utilization of these sweetpotato varieties and the subsequent improvement of high-quality varieties.

关 键 词：甘薯 营养品质 糖类 粗蛋白 Β-胡萝卜素 花青苷 

分 类 号：S531[农业科学—作物学]