This paper studied the effects of bagging during the period from young fruit formation to fruit coloration on the contents of pigment, sugar and endogenous hormone in Cara Cara orange flesh.

The percentage of self fruited during fertility period is all lower than the controls, thereamong, B30S and 117 are lower than 10%.

An insulation or cooling materials used in wet soil bagging method (such as the black plastic bag and reflective film bag etc. ) can be extended by grafting appropriate period of 2 months;