西北农业学报2025，Vol.34Issue(12)：2222-2230,9.DOI:10.7606/j.issn.1004-1389.2025.12.006
外源油菜素内酯对酿酒葡萄'梅尔诺'生长发育及果实品质的影响
Effects of Exogenous Brassinolide on Growth,Development and Fruit Quality of Wine Grape'Merlot'
摘要
Abstract
'Merlot',a Eurasian wine grape cultivar,was used as the experimental material.During four stages of grape growth and development(E-L 18,E-L 27,E-L 31 and E-L 35),24-epibrassinolide(EBR)was applied at concentrations of 0.2 mg·L-1(EBR1),0.4 mg·L-1(EBR2),and 0.6 mg·L-1(EBR3)by spraying the inflorescence or cluster,respectively.Except for the three concen-trations of EBR at E-L 18 stage,EBR treatment significantly increased spike length and width at other stages.Among the treatment,EBR2 resulted in the greatest increase in spike length during the E-L 18 stage,which was 13.57％higher than that of the control.In the E-L 31 stage,EBR2 increased spike width by 10.32％,and the transverse and longitudinal diameters of the berries increased by 5.65％and 6.39％,respectively,compared with the control.With the increasing EBR concentration,the 100-berry mass of fruit increased first and then decreased,but all treatment groups showed higher masses than the control.EBR2 treatment in the E-L 31 stage resulted in the highest 100-berry mass,which was 12.40％greater than the control.In terms of fruit quality,except for the reduction in total phenols,flavonoids and tannins at the E-L 18 stage,EBR treatments at other stages increased the contents of reducing sugars,soluble solids,anthocyanins,and other phenolic compounds.At E-L 18,EBR2 signifi-cantly increased soluble solids by 7.23％over the control.At E-L 31,EBR3 increased total phenols and reducing sugars by 25.10％and 8.77％,respectively,while EBR2 increased flavanol and flavonoid contents by 36.42％and 46.76％.During the E-L 27 stage,EBR2 significantly increased tannin con-tent by 32.71％,and at the E-L 35 stage,EBR3 significantly enhanced pericarp anthocyanin content by 42.33％.The effects of EBR varied by developmental stage.In the E-L 18(2 days before flowering)and E-L 31(13 days after flowering)stages,EBR application increased spike length and width,resul-ting in looser berry clusters and alleviating the problem of compact spikes.EBR treatment at E-L 31 also enhanced soluble solids,reducing sugars,and phenol contents.At E-L 35(70 days after anthesis),EBR had a better effect on fruit coloration and peel anthocyanin accumulation.Overall,the 0.4 mg·L-1 concentration(EBR2)has the most favorable effects on fruit growth and quality in'Merlot'grapes.关键词
梅尔诺/24-表油菜素内酯/生长发育/果实品质Key words
Merlot/24-epibrassinolide/Growth and development/Fruit quality引用本文复制引用
XIE Kaizhao,LÜ Sang,ZHANG Hua,ZANG Yushuang,LAI Lei,XI Zhumei..外源油菜素内酯对酿酒葡萄'梅尔诺'生长发育及果实品质的影响[J].西北农业学报,2025,34(12):2222-2230,9.基金项目
陕西省重点研发项目(2023-ZDLNY-21) （2023-ZDLNY-21）
国家现代农业产业技术体系建设专项(CARS-29-zp-6). Key Research and Development Program of Shaanxi Province(No.2023-ZDLNY-21) （CARS-29-zp-6）
Construction Project for National Modern Agricultural Industry Technology System(No.CARS-29-zp-6). （No.CARS-29-zp-6）
