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以德尔塔（Delta）甜检和中熟娜特（Midknight）甜橙两个品种为材料，探讨不同颜色遮光网、遮光强度与遮光时间对容器育柑桔幼苗生长、水分利用、叶片净CO2代谢速率以及幼苗生长微环境如土壤温度、大气湿度的影响。结果表明：与对照相比，所有遮光处理的幼苗较高，茎干较粗，德尔塔甜橙的试验结果比中熟娜特甜橙明显；遮光5个月比遮光12周的处理效果更明显；不遮光处理利用较多的水分．途光处理间无明显差别；不这光处理的土壤温度在14：00显著高于所有遮光处理；各处理间叶片净CO2代谢速率和大气湿度无差别。
The effects of shading net, shading intensity and shading time on the seedling growth, water use, net CO2 metabolism in leaves of citrus seedlings in container were studied with two varieties of Delta sweet and Midknight sweet orange. Rate and seedling growth micro-environment such as soil temperature, atmospheric humidity. The results showed that compared with the control, all the shading seedlings were higher, the stems were thicker, and the results of the Delta orange were more obvious than those of the mid-matured Nate orange. The shading for 5 months was more obvious than the shading for 12 weeks ; Do not shading treatment to use more water. There was no significant difference between the two treatments. The temperature of the soil without this treatment was significantly higher than that of all shading treatments at 14:00. There was no difference in net CO2 metabolism rate and atmospheric humidity between treatments.