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.
Abstract
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 antioxi-dant 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.
国家科技期刊平台
NSTL
维普
万方数据