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甜柿树冠内不同部位光能分布差异显著。光照对光合效应、树体生长结果和果实品质有明显的影响。重庆地区 11:00-11:30时,相对光照率南部>东部>西部>北部;16:00~16:30时则南部>西部>北部>东部。全天光照度 均为叶幕外层>内层>树冠中心,叶幕上层>中层>下层。净光合速率、光合产物输出率及产量与光照有相似的变 化趋势。相同方位不同高度叶幕层的着果率与相对光照率呈极显著相关。树冠各部位果实品质由于光照分布不同 存在着明显的差异。
There were significant differences in light energy distribution in different parts of sweet persimmon crown. Light photosynthesis, tree growth and fruit quality have obvious effects. Chongqing area 11: 00-11: 30, the relative light of southern> eastern> western> northern; 16:00 ~ 16:30 when the southern> western> northern> eastern. All day light intensity is the outer curtain> inner> canopy center, leaf curtain upper> middle> lower. Net photosynthetic rate, photosynthetic output rate and yield and light with a similar trend. Fruit rate of leaf layer at the same position and height was significantly correlated with relative illumination rate. Fruit quality of various parts of the crown due to the different light distribution there is a clear difference.