我省是柑桔类果树分布的北缘地带,栽培历史已有1千多年,品种资源也比较丰富。据河南省柑桔资源调查协作组1981年调查,解放前,柑桔品种资源有:枳壳、香园、香橙、金柑、朱红柑、红柑、酸桔、皱皮柑等。解放后,又先后从四川、湖北等地引 The province is the northern margin of distribution of citrus fruit trees, cultivation history has more than a thousand years, variety resources are also abundant. According to Henan Province, the investigation of citrus resources survey team in 1981 before the liberation, the citrus varieties of resources are: Citrus aurantium, Hong Yuan, orange, kumquat, Zhu Hong mandarin, red mandarin, sour orange, mandarin orange and so on. After the liberation, also successively from Sichuan, Hubei and other places cited