柑桔在我国南方各省广为栽培,果实以其特有的风味、丰富的营养,而为人们所喜食。在高产耐藏柑桔品种方面,过去栽培的大多数品种,存在着丰产而不耐藏(如多数宽皮桔等),或耐藏而不丰产(如有些脐橙等),不能满足人们的需要。为了延长桔果供应季节,有必要培育丰产耐藏的新品种。我所从1960年起进行的柑桔品种有性杂交育种中,选出了丰产耐藏的新品种——“四三九”。现简介如下。 一、选育经过 “四三九”为瓯柑×漳州改良橙的后 Citrus is widely cultivated in various provinces in southern China. Fruits are favored by people for their unique flavor and rich nutrition. In the field of high-yielding and resistant citrus cultivars, most of the cultivars cultivated in the past have high-yielding and impotence (such as most broad-leaved oranges) or are resistant to high-yielding fruits (such as some navel oranges) and can not meet people’s needs . In order to extend the orange supply season, it is necessary to cultivate new varieties with high yield and durability. In 1960, I conducted sexual cross-breeding of citrus varieties, selected a new variety of high yield and durability - “439.” Now the introduction is as follows. First, breeding after “439” for the Orange Orange × Zhangzhou improved orange