Studies on evaluation of sustained release tablets of extracts of Ginkgo biloba releasing rate in vitro by pharmacological indicatrix Effects of simulated acid rain on the growth and antioxidant activity of Zebrina pendula Effect of Nitrogen Supply Level in Rhizosphere on Growth and Nutritional Quality of Purple Pak-choi Effect of vitexin on energy metabolism of experimental rats with myocardial ischemia and protective mechanism Annual Variation of Nutrient Stoichiometry and Resistance Physiology of Phyllostachys edulis Stump Roots