关键词: 柑桔类果树, 果实品质, 生长特性

Abstract: The result of the study is as follows:The increasing of the dry matter and that of water in the fruits of "Xing Jin" Satsuma (citrus unshiu Tanaka) and navel orange(C. sinensis Osbeck) are basically synchronous. During the turning period from thickness into thinness in peel, the water rate of fruit is jusf about 80%. From the mid of June to early Saptember appears a period in whick the fruit volume of washington navel orange grows quickly under the weather conditions of Ya'an. On Augusf 10 to Saptember 10,the weight increases quickly (2.06g. fruit^-1. day^-1). The quickest groning period of the fruit votume of Xing Jin Satsuma is from late May folate Augusf. From late July to late saptember, the weight increases quickly (1.30-1.40g. fruit^-1. day^-1). The increment of weight maintains to maturation for both of the cultivar fruits. Therefore, picking in advance will directly reduce the yield.

Key words: CITRUS-RETICULATA TREES, FRUIT QUALITy, GROWTH CHARACTERISTIC