葡萄枝条还田配施微生物菌剂对葡萄果实品质的影响OA

This study was conducted to address the issues of slow decomposition and low nutrient release efficiency associated with the in-situ incorporation of grape pruning residues,and to identify suitable functional microbial inoculants for the Xichang area of Sichuan Province.Using the predominant local grape cultivar'Shine Muscat'as the test material,seven treatments with different microbial inoculants SW2(T1),XW5(T2),MRS-N7-2(T3),SW2+XW5(T4),XW5+MRS-N7-2(T5),SW2+MRS-N7-2(T6),and SW2+XW5+MRS-N7-2(T7)were established,with tap water as the control(CK).The effects of branch returning combined with different microbial inoculants on fruit morphology,color attributes,and internal quality were systematically investigated.The results showed that T4 treatment produced the greatest cluster weight(735.67 g)and single berry weight(11.39 g).T7 treatment exhibited the optimal fruit shape index of 1.27.T3 treatment had the highest L*value(50.70)and a*value(-6.40).Higher b*and C values,ranging from 21.11 to 22.25 and from 22.12 to 24.05,respectively,were observed in T1,T2,T3,and T6 treatments.T4 treatment displayed the highest color index,which was significantly increased by 16.3％compared with T1.T3 treatment had the highest total soluble solids content(18.23％).T3 and T6 treatments exhibited higher solid-acid ratios of 53.62 and 54.77,respectively,both significantly higher than those of the other treatments.T1 treatment showed the highest titratable acidity and quality index,with the latter being significantly increased by 8.1％to 300.0％compared with the other treatments.T4 treatment had the highest vitamin C content,which was significantly increased by 14.9％and 17.6％compared with T2 and T6,respectively.T5 treatment exhibited the greatest fruit firmness,significantly exceeding the other treatments by 2.0％to 91.0％.In summary,for'Shine Muscat'grape production in the Xichang area of Sichuan Province,the combined application of SW2 and XW5 is recommended when simultaneous improvement of yield and fruit color is desired;sole application of SW2 is advisable when comprehensive fruit quality and firmness are prioritized;and single application of MRS-N7-2 is recommended for enhancing flavor and sugar content.These findings provide a theoretical basis and technical support for the efficient utilization of grape pruning waste branches and the production of high-quality grapes.