GA3与CPPU对蓝莓结实生理的影响研究

Effects of GA and CPPU on Fruit Physiology of Blueberry

以‘瑞卡’蓝莓品种为试材,于花前和花后应用不同浓度GA3、CPPU浸蘸结果枝,研究其对蓝莓结实生理的影响。结果表明:与对照相比,100 mg/L GA3可使蓝莓花期提前3 d,75 mg/L GA3可提高8.9%的坐果率。10 mg/L CPPU可使果实花色苷含量增加12.7%。分析得出:较高浓度GA3可以促使蓝莓花期提前,提高坐果率,增加果实糖含量。较低浓度CP-PU可显著增加果实可滴定酸、维生素C和花色苷含量。最适宜蓝莓生长的外源GA3浓度为75 mg/L,CPPU浓度为10 mg/L,在此浓度下蓝莓结果生长综合质量最佳。

Using Reka blueberry variety as test material, the fruit branches were dipped with different concentrations of GA3, CPPU before and after anthesis to study the effect of Reka on fruit physiology of blueberry. Compared with the control, 100 mg/L 100 mg/L GA3 could advance blueberry flowering by 3 days and 75 mg/L GA3 could increase fruit setting rate by 8.9%. 10 mg/L CPPU could increase anthocyanin content by 12.7%. The results showed that high concentration of GA3 could advance the flowering period, increase the fruit setting rate and increase the sugar content in the fruit. Low concentration of CPPU could significantly increase the contents of titratable acid, vitamin C and anthocyanin in fruit. The optimal concentration of GA3 was 75 mg/L, and the concentration of CPPU was10 mg/L. Under this concentration, the comprehensive quality of fruit growth of blueberry was the best.