果树促控剂PBO在苹果树上的应用效果

Application Effect of Fruit Controlling Agent PBO on Apple Trees

用果树促控剂PBO代替苹果传统的花果促控手段,可达到安全、稳定、优质和高效的目的。试验结果表明:花前喷施PBO可明显提高苹果树坐果率;6￣7月份喷施PBO,叶片光合作用增强,中短果枝及叶丛枝数量增加明显;平均单果重提高了59%;果型高桩,色泽亮丽美观,固形物含量、果型指数、果实硬度、优果率均有明显提高;果实着色比对照提早20￣25 d,耐贮性增强,商品性和货架期有较大的提高。

The aim of safety,stability,high quality and high efficiency could be achieved using fruit controlling agent PBO instead of traditional flower and fruit control means.The test result showed that the fruit setting rate of apple tree could be increased obviously when PBO was applied before blossom.When PBO was applied during June to July,the leaf photosynthesis could be promoted,the middle and short branches and foliage branches would increased obviously;the average weight of single fruit increased by 59%;fruit type high-pile,in bright color and beautiful.The solids content,index of fruit shape,fruit hardness and high-quality fruit rate were all increased obviously.The time of fruit coloring was advanced 20~25 days,the storage tolerance,commodity and shelf life were improved significantly.