关键词: 柿, 中国甜柿, 地理分布, 自然脱涩, 遗传改良

Abstract: The oriental persimmon（Japanese persimmon or kaki），Diospyros kaki Thunb.，is believed to have originated in China. Pollination-constant and non-astringent persimmons native to China，simply called Chinese PCNA persimmons，are only distributed in Dabieshan Mountain around the junction of three provinces，Hubei，Henan and Anhui in central China. Here we review the studies of Chinese PCNA persimmons，including their cropping history，geographic distribution and some variations，especially the biological characteristics，the traits and rules of natural astringency-loss of fruit. In addition，it is also illustrated that Chinese PCNA persimmons played important roles in the researches on the origin and genetic relationship，the mechanism of natural astringency-loss，and the genetic breeding of the oriental persimmon in the world.

Key words: persimmon, Chinese PCNA persimmon, geographic distribution, natural astringency- loss, genetic improvement