Effects of Tree Shape on the Sugar Accumulation and Activity of Sorbitol-Invertase of Pyrus pyrifolia ‘Sunhwang’ The Effects of Different Tree Shapes of Pear on the Light and Fruit Yield and Quality The Effects of Different Tree Shapes of Pear on the Light and Fruit Yield and Quality Research on Branching and Photosynthetic Utilization of Oil-tea Camellia with Different Tree Shapes Effects of different tree shapes on light use in Castanea henryi Study on characteristics of net photosynthetic rate of two kinds of tree shape and Impact Factors in Korla fragrant pear Formation causes of wind damage to Robinia pseudoacacia plantation in Yellow River Delta.