摘要
【目的】探究2种不同水分调亏处理方式对葡萄果皮酚类物质的影响。【方法】以寒香蜜和紫甜无核2个葡萄品种为试验材料,采用滴灌控水,设置正常水分(CK)、浇水量减半(T1)及浇水次数减半(T2)3个处理,测定各处理的可溶性固形物、总酚、总花色苷及各酚类物质含量变化。【结果】T1与T2处理均能增加寒香蜜和紫甜无核葡萄果皮中酚类物质含量,提高果实品质。寒香蜜葡萄果实中,T2处理的可溶性固形物含量更高,与T1处理相比,T2处理更能促进果皮中酚类物质的积累。而紫甜无核葡萄果实中,T2处理的可溶性固形物含量高于T1,与T2处理相比,T1处理更有助于葡萄果皮中低聚黄烷醇、酚酸及芪类物质含量的增加。【结论】寒香蜜葡萄应采用T2处理提高果实品质,T1处理更适用于紫甜无核葡萄提高果实品质。
【Objective】Regulated deficit irrigation treatments have significant effects on the content of phenolic metabolites in the peels of grape(Vitis vinifera L.)berries.Studying the effects of various regulated deficit irrigation treatments on the metabolism of phenolic substances in grape berry peels can not only provide reference for improvement of grape berries quality,but also provide methods to save water and thereby improve the economic benefits.【Methods】Three-year-old ridge-rooted Reliance(Vitis labrusca L.×V.vinifera L.)and Zitian Seedless(V.vinifera L.)were selected as the materials.The same pruning and fertilization regimes were applied to all grapevines.Regulated deficit irrigation treatments included 2.5 L irrigation every 4 days(T1)and 5 L every 8 days(T2)from prior to veraison till full berry maturity,and irrigation with 5L every 4 days was set as the control.At ripe stage,berries with uniform maturity and no mechanical damage were collected for quality analysis.Total soluble solids(TSS)were measured using a PAL-1 refractometer.Total phenol was determined by Folin-Phenol reagent.Total anthocyanins were measured using an ultraviolet spectrophotometer.The skin was separated from the pulp and both tissues were immediately frozen in liquid nitrogen,and stored at -80℃ for further use.Phenolic metabolites of the grape skins were measured by high performance liquid chromatography-mass spectrometry(HPLC-MS).【Results】The results showed that T1 and T2 treatments increased TSS and total phenol content in Zitian Seedless grape,and total anthocyanins and most phenolic metab olites in the both cultivars.Seventeen anthocyanins,twenty flavonols,sixteen flavanols,three other flavonoids,fifteen phenolic acids and four stilbenes were detected in our study.In Reliance berries,the contents of TSS and total phenol in T2 was significantly higher than in T1.Compared with the control in Zitian Seedless,the contents of TSS and total phenol increased significantly in the groups of the two regulated deficit irrigation
作者
张钥
王呈阳
周嘉玲
李有梅
谢兆森
冷锋
ZHANG Yue;WANG Chengyang;ZHOU Jialing;LI Youmei;XIE Zhaosen;LENG Feng(College of Horticulture and Plant Protection,Yangzhou University,Yangzhou 225000,Jiangsu,China;Zhoushan Academy of Agriculture Sciences,Zhoushan 316000,Zhejiang,China)
出处
《果树学报》
CAS
CSCD
北大核心
2021年第8期1296-1307,共12页
Journal of Fruit Science
基金
江苏现代农业产业单项技术研发(CX(20)3173)
江苏省“双创计划”双创博士
扬州市“绿扬金凤计划”优秀博士
扬州大学高校人才启动经费。
关键词
葡萄
酚类物质
果实品质
水分处理
Vitis vinifera L.
Phenolic metabolites
Fruit quality
Water treatment
