69份穇子种质资源的营养品质综合评价  

Comprehensive Evaluation of Nutritional Components in 69 Finger Millet Germplasm Resources

作　　者：李基光 王艳兰[1] 胡丽琴 王素华 张璐 杨学乐 何录秋[1] 汤睿[1] LI Ji-guang;WANG Yan-lan;HU Li-qin;WANG Su-hua;ZHANG Lu;YANG Xue-le;HE Lu-qiu;TANG Rui(Hunan Crop Research Institute,Changsha 410125,PRC)

机构地区：[1]湖南省作物研究所,湖南长沙410125

出　　处：《湖南农业科学》2023年第7期20-25,29,共7页Hunan Agricultural Sciences

基　　金：湖南省农科院创新基金(2022CX59,2022CX60);国家作物种质资源库-湖南分库(NCGRC-2023-56);湖南省农业种质资源保护与利用资金(湘财农指[2022]23号);湖南省现代农业产业技术体系旱粮与良种繁育岗位(湘农发[2019]05号)。

摘　　要：评价穇子种质资源的营养品质,筛选出营养品质优良的穇子种质资源,为穇子育种亲本选择及其种质资源有效利用提供参考。以69份不同产地的穇子资源为试验材料,测定其籽粒中淀粉、蛋白质、膳食纤维、矿物质等11项营养成分指标的含量,对测定结果进行品质分析、相关性分析及主成分分析,并采用相似优先比及隶属函数法对各材料主要营养品质进行了综合评价。结果表明:不同地区穇子中含有大量的钙元素(99.7~324.0 mg/100g)、钾元素(321.7~734.0 mg/100g)及膳食纤维(9.7~13.0g/100g);穇子中有机营养成分间相关性显著;通过相似优先比及隶属函数法对营养价值进行综合排序,筛选出营养价值排在前5的品种,分别为C39、C50、C34、C64和C62。综合分析评价得到超高钙穇子资源C50、C64;超高钾穇子资源C34、C39、C50;高膳食纤维穇子资源C34、C39、C62、C64。This study aims to screen out finger millet(Eleusine coracana) germplasm resources with excellent nutritional quality,providing reference for parent selection and effective utilization of finger millet germplasm resources.Eleven nutritional indexes of grains of 69 finger millet germplasms,including starch,protein,dietary fiber and mineral contents were determined;the correlation analysis and principal component analysis were used to analyze the obtained data,and the main nutritional quality of each material was comprehensively evaluated by the similarity priority ratio and membership function methods.Results showed that these finger millet germplasms from different origins were rich in calcium(99.7-324.0 mg/100g),potassium(321.7-734.0 mg/100g) and dietary fiber(9.7-13.0g/100g).Significant correlationships were found between the organic nutrient indexes of finger millet germplasms.The similarity priority ratio and membership function methods revealed that five cultivars with the highest nutritional values were C39,C50,C34,C64 and C62in comprehensive ranking,among which C50 and C64 were super high calcium resources,C34,C39 and C50 were super high potassium resources,and C34,C39,C62 and C64 were high dietary fiber resources.

关 键 词：穇子 营养品质 主成分分析 综合评价 

分 类 号：S482.4[农业科学—农药学]