基于果实品质变异的欧李种质资源评价研究  

Germplasm Resource Evaluation Based on Fruit Quality Variation of Chinese Dwarf Cherry

作　　者：张忠爽 顾金瑞 曹美琪 王莹[1] 阿力木江.阿布力米提 李卫东[1] Zhang Zhongshuang;Gu Jinrui;Cao Meiqi;Wang Ying;Abulimiti Alimujiang;Li Weidong(School of Chinese Materia Medica,Beijing University of Chinese Medicine,Beijing 102485,China;College of Traditional Chinese Medicine,Capital Medical University,Beijing 100069,China)

机构地区：[1]北京中医药大学中药学院,北京102488 [2]首都医科大学中医药学院,北京100069

出　　处：《农学学报》2018年第8期61-68,共8页Journal of Agriculture

基　　金：国家林业局公益性行业科研专项"生态经济型植物欧李的沙产业开发技术研究"(201504710);北京中医药大学2017年基本科研业务费自主选题项目"基于多酚含量和抗氧化活性的欧李果酒发酵工艺优化及其品质评价"(2017-JYB-XS-082)

摘　　要：以30份欧李种质的果实为材料,进行其外观性状、糖酸含量、维生素C含量测定及分析。结果表明,不同种质的欧李果实品质变异较大,按照变异系数大小依次为维生素C含量(46.81%)>糖酸比(37.67%)>可滴定酸含量(30.88%)。果核重与纵径、果形指数呈极显著正相关;糖酸比与固酸比呈极显著正相关,同时总可溶性糖与可溶性固形物呈极显著正相关。聚类分析将欧李种质划分为3个类型,第Ⅰ类为药用、加工类型,其特征为果个大,单果重、果核重较高;第Ⅱ类为高营养类型,其特征为维生素C含量较高;第Ⅲ类为口感甜型类型,其特征为可溶性固形物含量、总可溶性糖含量、固酸比和糖酸比含量都较高。本研究划分出的3个类型分别筛选出3个代表种质,分别为22号(山西绛县大交镇)、12号(北京延庆县张山营镇)和6号(辽宁省阜新市彰武县)种质。The appearance characters, the contents of sugar and acid as well as vitamin C were determined andanalyzed by using fruits of 30 germplasms of Chinese dwarf cherry. The results showed that the variations offruit quality of different germplasms were large, the variation coefficient order was vitamin C content（46.81%）〉 sugar-acid ratio（37.67%） 〉titratable acid content（30.88%）. Correlation analysis showed that seedweight was positively correlated with longitudinal diameter and fruit shape index. Sugar-acid ratio and solidacid ratio were positively correlated with each other, while the contents of total soluble sugar and total solublesolid were positively correlated with each other. The germplasms of Chinese dwarf cherry could be clusteredinto three types： the first was medicinal and processed type, which was characterized by larger fruit, highersingle fruit weight and higher pit weight; the second was higher nutrient type, which was characterized byhigher vitamin C content; the third was the sweet type, which was characterized by higher soluble solidscontent, higher total soluble sugar content, higher solid acid ratio and higher sugar-acid ratio. Threerepresentative germplasms of Chinese dwarf cherry were selected from the three types, respectively, No.22（Dajiao of Jiang County, Shanxi Province）, No.12（Zhangshanying of Yanqing County, Beijing） and No.6（Zhangwu County of Fuxin City, Liaoning Province）.

关 键 词：欧李 果实品质 种质资源 外观性状 

分 类 号：TS255.2[轻工技术与工程—农产品加工及贮藏工程]