Review on application of plant growth retardants in medicinal plants cultivation Studies on the Chemical Constituents of Arisaema fargesii Buchett Effects of Chlorocholine Chloride on Photosynthesis Metabolism and Terpene Trilactones Biosynthesis in The Leaf of Ginkgo biloba EFFECTS OF CCC ON DYNAMIC CHANGES IN PHOSPHATE NUTRITION AND YIELD OF POTATO Effects of chlorocholine chloride on photosynthetic characteristics and phosphate nutrition of potato Zhongshu3 Effects of Plant Growth Regulator on the Turf Quality of Kentucky Bluegrass Effects of Chlorocholine Chloride on Photosynthesis Metabolism and Terpene Trilactones Biosynthesis in The Leaf of Ginkgo biloba Detection of agent "zhuanggenling" and investigation of utilization of plant growth retardants in traditional Chinese medicine cultivation