Abstract:

The ‘Red Fuji’ apple trees in full fruit period were used to study on the relationship between the different capacity treatments and leaves photosynthetic and storage nutrition during three years. The results showed that increase of load, Pn, CE and WUE of leaves were gradually declined. Performance for treatment A> treatment B> treatment C> treatment D> treatment E, while the intercellular CI and Tr of leaves were treatment E> treatment D> treatment C> treatment B> treatment A. The storage nitrogen and carbon in the branches and roots of trees were reduced with the increase of amount of nutrition. As the continuous processing increase, amplitude of the reducing increased. The suitable capacity of apple garden under the medium management in full fruit period was 45000-60000 kg/hm2, this might ensure the trees’ normal photosynthesis and more storage nutrition and be helpful for years of high quality.