Effects of Different Canopy and Tree Shape on Fruit Quality of Huangguogan

In this paper, the fruit of Huangguoganwas used as the test material. The fruit quality was measured according to different canopies and tree shapes. The results showed that the quality of fruits in upper canopy layers was superior to that in lower canopy layers. The difference of intrinsic quality,like soluble solids, VitaminC and sugar content,was significant in different canopies; but the difference of appearance quality was small. And on different tree shapes, the fruit quality of round-headed tree was the best, followed by the open-center tree.