Brief Report on the Chilling Requirement and Characteristic of Punica granatum L. Growth and Development in Solar Greenhouse

The chilling requirement and growth and development of Punica granatum L.——Mudanhua were studied in solar greenhouse in southern Liaoning region.The chilling requirement of the Punica granatum L.——Mudanhuawas 408 h low temperature.The Punica granatum L.——Mudanhua only needed to pass through seventeen days in 0～7.2 ℃ low temperature treatment to break nature dormancy so that it could grow and development normally.The results indicated that it was completely feasible that Punica granatum L.——Mudanhua was accelerating its culture in solar greenhouse.The shoot growth pattern of the Punica granatum L——Mudanhua was a double-sigmoid curve,and the fruit development pattern was a single-sigmoid curve.