在陕州风景区内，以龙柏、蜀桧、榆叶梅、红叶李等作为供试树种，研究各种防治技术的防治效果。
Pyramidalis, Prunus triloba and Prunus cerasifera cv. Ptropurpurea and so on as tested tree species, the control effects of various control technologies were studied.
红叶桃和紫叶李与绿叶品种的水分利用效率、气孔导度和蒸腾速率日变化趋势均相近；
The diurnal variation of WUE, Gs and Trwas similar between color-leafed and opposite green-leafed varieties from spring to autumn;
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