| 基于果实品质变异的欧李种质资源变异及其评价研究 |
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| 引用本文： | 张忠爽,李卫东.基于果实品质变异的欧李种质资源变异及其评价研究[J].农学学报,2018,8(8):61-68. |
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| 作者姓名： | 张忠爽 李卫东 |
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| 作者单位： | 北京中医药大学中药学院,北京中医药大学中药学院 |
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| 基金项目： | 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)。 |
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| 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。
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| 关 键 词： | 玉米 玉米 机械化粒收 LT5918 耐密 |
| 收稿时间： | 2017/12/5 0:00:00 |
| 修稿时间： | 2018/2/26 0:00:00 |
Germplasm Resource Evaluation Based on Fruit Quality Variation of Chinese Dwarf Cherry |
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| Abstract: | The appearance characters, the contents of sugar and acid as well as vitamin C were determined and analyzed by using fruits of 30 germplasms of Chinese dwarf cherry. The results showed that the variations of fruit 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 seed weight was positively correlated with longitudinal diameter and fruit shape index. Sugar-acid ratio and solid acid ratio were positively correlated with each other, while the contents of total soluble sugar and total soluble solid were positively correlated with each other. The germplasms of Chinese dwarf cherry could be clustered into three types: the first was medicinal and processed type, which was characterized by larger fruit, higher single fruit weight and higher pit weight; the second was higher nutrient type, which was characterized by higher vitamin C content; the third was the sweet type, which was characterized by higher soluble solids content, higher total soluble sugar content, higher solid acid ratio and higher sugar- acid ratio. Three representative 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). |
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| Keywords: | Chinese dwarf cherry fruit quality germplasm resource appearance characters |
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