Abstract:

The adaptation area of Pyrus communis in China is relatively narrow, and the requirements for climate conditions are strict. It is necessary to summarize the climate conditions of the main production areas of P. communis in China, which can be used as the basis for identifying the ecological areas suitable for P. communis cultivation. In addition, the production status and main varieties of major P. communis producing countries were studied to clarify the distribution and ecological climate conditions, and a comparison was conducted between those countries and China. The results show that the unique climatic characteristics in many areas of China can meet the ecological conditions required for the growth of P. communis, such as the Yellow River Golden Triangle (Yuncheng, Sanmenxia), Xi’an, the Yellow River old river way area (Zhengzhou, Dangshan, Xuzhou), the Bohai Bay, and the Yunnan-Guizhou Plateau area. The climate conditions of the above areas are similar to those of main P. communis cultivating countries, and the fruit quality is relatively good. Furthermore, warm and dry areas in southeast Xinjiang (Kashgar), cold and cool and humid areas in southeast Tibet (Changdu, Nyingchi) and areas with similar climate conditions are the sub-suitable areas for P. communis planting; although under extreme conditions, slight freezing injury will occur and affect the growth of P. communis trees in these areas, varieties with strong cold resistance can be selected. According to the local specific climate conditions, it is of great significance to select excellent varieties with adaptable characteristics for development, thus improve the domestic market share and optimize the variety structure of P. communis.

Key words: Pyrus communis, ecological adaptability, regionalization, climatic characteristics, variety structure