盆栽观赏苹果疏花促果调控试验初报

在花期对盆栽‘冬红果’和‘舞美’采取不同疏花方式进行调控,试验结果表明:‘冬红果’采取每隔5个花序留1花序,其余4个疏除和隔12个花序集中留3个花序,其余9个花序疏除,花枝上端(1/4)全部疏除,留花枝侧下花序处理方法,坐果数和单果重较对照分别提高30.1%、24.2%,2种方法之间无显著差异。‘舞美’采取每隔10cm留1个花序,每花序留中心花,其余花序和花朵疏除,所留花朵位于枝条侧下位和每隔25cm留3个花序,留侧下花序,每花序留中心花,其余全部疏除的处理方法,较对照坐果率和单果重分别提高26.2%、36.11%;2种处理方法效果显著好于对照。该试验找出了适合2品种盆栽条件下的花期最佳疏花促果调控措施。

Preliminary report of pot culture ornamental apple thinning flowers and promoting fruits regulation

Experiments were carried out with pot culture ornamental apple ＇dong hong guo＇ and ＇wu mei＇ taken different thinning flowers actions in the flowering phase. The results showed that fruit set and single fruit weight of ＇dong hang guo＇ were were over 30.1% and 24.2% than the control by the two different methods. Qne method was reserving 1 inflorescence and thinning other 4 inflo- rescences every 5 inflorescences, the other was reserving 3 inflorescence and thinning other 9 inflorescence every 12 inflorescence, thinning a quarter of the top end of flowering branch and reserving the lower side of flowering branch. There were not significant dif- ferences between the two methods. Fruit set and single fruit weight of ＇wu mei＇ were over 26.2% and 36.11% than the control by the two different methods, one method was reserving 3 inflorescences, reserving the lower side of flowering branch, reserving the center of flowering branch and thinning the rest every 25 cm, the other was reserving 1 inflorescence every 5 inflorescences, thinning other 4 inflorescences, thinning a quarter of the top end of flowering branch and reserving the lower side of flowering branch. The two meth- ods were significantly better than the control. Experiments found the best regulation method of thinning flowers and promoting fruits to be fit for the two varieties under pot condition in the flowering phase.