重庆地区的柑桔园大多建于七八十年代 ,许多果园品种单一 ,品质较差 ,远不适应市场需求 ,经济效益差。为适应水果市场的发展 ,近年重庆地区大力调整柑桔品种结构 ,进行了大量的高接换种工作 ,已取得显著成效。现将部分柑桔换代品种的特性列于表 1,以供参考。表 1　　重庆地区部 Most citrus orchards in Chongqing were built in the seventies and eighties. Many single orchards have a single breed of poor quality, which is far from meeting the needs of the market with poor economic returns. In order to adapt to the development of the fruit market, in recent years, Chongqing Municipality has vigorously adjusted the citrus variety structure and carried out a large number of high-exchange seedings and achieved remarkable results. Now part of the characteristics of citrus varieties are listed in Table 1, for reference. Table 1 Chongqing Regional Department