广西籽粒苋资源品质性状的鉴定与评价  

Grain Amaranth Germplasm Resources in Guangxi: Identification and Evaluation of the Quality Characters

作　　者：覃初贤[1] 覃欣广 望飞勇[2] 邢钇浩 温东强[1] Qin Chuxian;Qin Xinguang;Wang Feiyong;Xing Yihao;Wen Dongqiang(Germplasm Resources Pool,Guangxi Academy of Agricultural Sciences,Nanning 530007;Horticulture Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007)

机构地区：[1]广西壮族自治区农业科学院种质库,南宁530007 [2]广西壮族自治区农业科学院园艺研究所,南宁530007

出　　处：《中国农学通报》2020年第33期50-57,共8页Chinese Agricultural Science Bulletin

基　　金：广西创新驱动发展专项资金项目“广西农作物种质资源收集鉴定与保存”(桂科AA17204045);“特色杂粮种质资源收集鉴定与保存”(桂科AA17204045-11);农业农村部物种保护费项目“广西杂粮作物种质资源系统调查与抢救性收集”(111721301354052035-11)。

摘　　要：广西籽粒苋地方种质资源极其丰富多样,为了给广西籽粒苋育种和生产提供理论依据,以考察收集的61份广西籽粒苋资源为试材,对籽粒的蛋白质、淀粉、脂肪、硒含量等4个主要品质性状进行测定分析和评价。结果表明,蛋白质、淀粉、脂肪、硒平均含量分别为14.59%、41.37%、4.89%、0.056 mg/kg。不同品质性状变异程度不同,其中硒含量变异最大。性状间存在着不同的相关性:蛋白质与淀粉呈极显著正相关、与脂肪呈极显著负相关,脂肪与淀粉呈极显著负相关、与硒呈现显著负相关。不同来源的种质品质性状比较结果表明,百色市地方种质资源的蛋白质、淀粉、脂肪和硒的平均含量明显优于广西其他地市。通过鉴定,筛选出多项品质优异资源4份,双项品质优异资源7份,高蛋白质、高淀粉、高脂肪和富硒含量单项优异资源16份。The local germplasm resources of grain Amaranth in Guangxi are extremely rich and diverse.In order to provide a theoretical basis for breeding and production of grain Amaranth in Guangxi, 61 Guangxi grain Amaranth germplasm resources were used as materials, and 4 main quality characteristics of protein,starch, fat and selenium content of Amaranth were detected, analyzed and evaluated.The results showed that the average content of protein, starch, fat, selenium was 14.59%, 41.37%, 4.89%, 0.056 mg/kg, respectively.The variations of different traits were different, and the selenium content varied the most.Different relationships appeared among different characters.Protein was significantly and positively correlated with starch, while it was significantly and negatively correlated with fat.Fat was significantly and negatively correlated with starch, and it was significantly and negatively correlated with selenium.The quality characteristics comparison of the species from different sources showed that the average contents of protein,starch, fat and selenium of local seed resources in Baise City were significantly better than those of other cities in Guangxi.4 multi-item high-quality resources, 7 two-item high-quality resources and 16 single-item highquality resources(higher-protein, higher-starch, higher-fat or rich-selenium) were screened out.

关 键 词：籽粒苋 种质资源 蛋白质 淀粉 脂肪 硒 

分 类 号：S519[农业科学—作物学]