Influence of Timing of the Paclobutrazol Soil Application on Growth of Apple Trees
Huang Hai, Tang Changqing, and Fang Jinbao(Zhengzhou Fruit Research Institute, CAAS,450004)
Studies on the influence of timing of the paclobutrazol soil application on the growth response of apple trees were conducted on four apple cultivars in two years. The lag time in apple varied from 2 to 2. 5 months. In order to eliminate the influence of lag time, application on August and the first half of September in previous year was recommanded.