赤霉素对葡萄花序拉长及果实品质的影响OA

In order to investigate the effects of different concentrations of gibberellin(GA3)on the elongation of grape inflorescences and fruit quality,experiments were conducted using the simple past tense and passive voice.The investigation into the effects of dif-ferent concentrations of gibberellin(GA3)on the elongation of grape inflorescences and fruit quality involved using 4-year-old Jinyu,MH2,and MZ3 plants as test materials.The entire inflorescence was immersed in GA3 at various concentrations 5 days before flower-ing,with experiments conducted in the simple past tense and in the passive voice.The results showed that the length of the small flower axis intervals in the grape cultivars Jinyu,MH2,and MZ3 was observed to change in a parabolic manner as the concentration of GA3 increased.Gibberellin treatments at different concentrations were found to elongate both the grape inflorescences and the fruit clusters,with the optimal treatment concentration varying by variety.The longest cluster length for Jinyu and MZ3 was achieved with a GA3 concentration of 8 mg·L-1,while for MH2,the longest cluster length was obtained with a GA3 concentration of 4 mg·L-1.Treat-ments with different concentrations of GA3 consistently reduced the soluble solid content of the grapes,with little impact on the titrat-able acid content.The vitamin C(VC)content significantly decreased in Jinyu grapes,showed no significant change in MH2 grapes,and significantly increased in MZ3 grapes.In conclusion,incorporating the principles of safe production and considering various fac-tors related to fruit quality,it is determined that the optimal GA3 concentration for elongating the inflorescences of Jinyu grapes ranges from 6 to 8 mg·L-1.For MH2 grapes,the suitable GA3 concentration range is established to be between 4 and 6 mg·L-1,and for MZ3 grapes,the appropriate GA3 concentration for inflorescence elongation is also set between 6 and 8 mg·L-1.