刺梨代表性果实品质与优异种质筛选  

Screening of Representative Fruit Quality and Excellent Rosa roxburghii Tratt. Resources

作　　者：邹仕美 南红 周广志 鲁敏[1] 安华明 ZOU Shimei;NAN Hong;ZHOU Guangzhi;LU Min;AN Huaming(College of Agriculture,Guizhou University,Guiyang 550025,China;National Forestry and Grassland Administration Engineering Research Center for Rosa Roxburghii,Guiyang 550025,China)

机构地区：[1]贵州大学农学院,贵阳550025 [2]国家林业和草原局刺梨工程技术研究中心,贵阳550025

出　　处：《种子》2024年第12期94-101,107,共9页Seed

基　　金：国家自然科学基金项目(32060657);贵州省科技厅项目(2021242);贵阳市科技计划项目(筑科合同[2021]3-19号)。

摘　　要：为明确具有代表性的刺梨果实品质、筛选优良育种亲本,改善刺梨品质单一的现状,促进野生刺梨资源的合理开发应用,以55份野生刺梨和1份无籽刺梨为试材,测定包括总酚、总黄酮、总三萜、维生素C(Vc)、超氧化物歧化酶(SOD)在内的25个果实品质性状,对刺梨果实品质及种质资源进行综合评价。结果表明,表儿茶素、儿茶素水合物和绿原酸是总酚中发挥抗氧化能力的3种主要单体酚;总酚、2,2′-联氨-二(3-乙基-苯并噻唑-6-磺酸)二铵盐(ABTS)、铁离子还原(FRAP)、表儿茶素、虎杖苷、没食子酸、Vc、SOD、单果重和固酸比可分别作为抗氧化能力、果实外观品质和糖酸风味的代表指标;XY13、ZJ14、QX8、LC7和GP6等种质适宜用作培育高抗氧化能力刺梨品种的育种亲本;综合品质最优的10份种质资源为:XY13、QX8、GP6、ZJ14、LC7、AL11、AL7、GP3、ZY1、WC1。In order to determine the representative fruit quality of Rosa roxburghii Tratt.,screen the excellent breeding parents,improve the single quality of Rosa roxburghii Tratt.,and promote the rational development and application of wild Rosa roxburghii Tratt.resources,55 wild Rosa roxburghii Tratt.and 1 seedless Rosa roxburghii Tratt.were used as test materials,and 25 fruit quality traits like total phenols,total flavonoids,total triterpenes,superoxide dismutase(SOD)and vitamins(Vc)were determined,and the fruit quality and germplasm resources of Rosa roxburghii Tratt.were evaluated comprehensively.The results showed that epicatechin,catechin hydrate and chlorogenic acid were the three main monomer phenols in total phenols.Total phenol,2,2'-hydrazine di(3-ethyl-benzothiazole-6-sulfonic acid)diamiammonium salt(ABTS),iron ion reduction(FRAP),epicatechin,polydatin,gallic acid,Vc,SOD,fruit weight and solid acid ratio could be used as representative indexes of antioxidant capacity,fruit appearance quality and sugar-acid flavor,respectively.The germplasm XY13,ZJ14,QX8,LC7 and GP6 were suitable for breeding the high antioxidant capacity of Rosa roxburghii Tratt.varieties.The 10 germplasm resources with the best overall quality were XY13,QX8,GP6,ZJ14,LC7,AL11,AL7,GP3,ZY1 and WC1.

关 键 词：刺梨 活性物质 单体酚 抗氧化能力 种质资源 

分 类 号：S661.9[农业科学—果树学]