First, planting density should be increased and vine number be diminished to enhance fruit set, increase early yield in forcing culture.

在生产中，①早熟栽培可增加种植密度、减少蔓数，以增加果数，提高早期产量；

Effect of GA3 treatments with different concentrations on the growth and development of tree peony was studied m the condition of forcing culture .

以3个牡丹品种为试材，研究不同浓度赤霉素处理对不同牡丹品种生长发育的影响。