Cloning and Analysis of Copper-zinc-superoxide Dismutase Gene (PpCuZnSOD) from Prunus persica Degradation behavior of PPC/PBS as urea coating in soil The Physiological Responses of Plantago asiatica L.and Viola philippcia Cav.to Water Stress Transgenic Alfalfa with GsPPCK1 and Its Alkaline Tolerance Analysis Preparation and characterization of biodegradable polymer-coated urea Subcellular Localization of PpCAD from Elephant Grass (Pennisetum purpureum cv.Huanan) and Its Heterologous Expression in Transgenic Tobacco Influencing factors on stability of hawthorn leaves total flavonoids-phospholipid complex Influencing factors on stability of hawthorn leaves total flavonoids-phospholipid complex