3. Results and discussion
3.1. Sugar and acid content in Citrus fruits
Sugar and acid contents were measured at two different time points (August and November) using a HORIBA device (Table 1). The overall sugar content ranges in Citrus lines in August were 6.2–6.3-1Brix between C. unshiu Marc. Cv. Miyagawa-Wase and four mutagenesis-induced lines. The differences in general sugar contents
between the control and mutagenesis lines were relatively
low and not significantly different in samples collected in August. This was because the Citrus water content had begun to evaporate, whereas sugar content began to accumulate in this period. While all the samples had similar sugar contents, acid varied among