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四三九桔橙系浙江柑桔研究所用瓯柑作母本,改良橙作父本,杂交培育而成的一个新柑桔良种。我所于1979年春从该所引入其接穗,经以枳为砧,嫁接后,于1980年秋定植在本所柑桔品种园内,株行距为3.3×3.6(米),1982年开始挂果。现将几年来初步观察整理如下:
Four thousand oranges Orange citrus Institute of Zhejiang citrus use of orange as the mother, orange improved paternity, hybrid cultivate a new citrus varieties. I introduced the scion from the institute in the spring of 1979. After being grafted with trifoliate orange, we planted the citrus varieties in the autumn of 1980 in the autumn of 1980. The row spacing was 3.3 × 3.6 m. Now a few years to observe the initial observations are as follows: