GA₃ 对露地栽培葡萄花序拉长及果实品质的影响

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中图分类号 S663.1 文献标识码A文章编号 0517-6611（2025）18-0031-04doi：10.3969/j.issn.0517-6611.2025.18.009

The Effect of GA3 on the Elongation of Grape Inflorescences and Fruit Quality in Open Field Cultivation LIU Ya01，2 ， ZHANG Na2 ， ZHANG He2 et al（1. College of Horticulture and Landscape Architecture， Tianjin Agricultural University， Tianjin 3OO384;2.The Research Institute of Pomology，Tianjin Academy of Agricultural Sciences，Tianjin 300384）

Abstract[Objective]To investigate the effects of different mass concentrations of gibberelin （ GA3 ）on the elongation of grape inflorescences andfruitquaityiopenfieldcultivation.Method]Using4-yearoldMH2andMZ3plantsasmaterials，diferentmassconcentrationsof GA3 weresprayedontheentireinfloresencewhen5-6newleaveswereslightlyexpanded（15daysbforefowering）.Result]Theearlengthf MH2 was the longest when the mass concentration of GA3 was 6mg/L and the ear length of MZ3 was the longest when the mass concentration of GA3 was 5mg/L . Different concentrations of GA3 could enhance the intrinsic quality of grape.[Conclusion] Considering the principles of safe production and various grape quality factors，it is recommended that the appropriate mass concentration of GA3 for the MH2 inflorescence elongation treatment is 6-7mg/L ，and for the MZ3 inflorescence elongation treatment，the appropriate mass concentration of gibberelin is 5- （204 6mg/L

Key words GA3 ;Inflorescence elongation;MH2;MZ3;Fruit quality

MH2和MZ3为天津市农业科学院选育的葡萄新品种优系，MH2与MZ3的果穗均呈圆锥形，果粒之间生长紧密，果实易受到挤压导致变形甚至破裂腐烂，使品质受损，同时增加人力拣选成本。（剩余7867字）