Though the fruits of Citrus Natsudaidai have been harvested in April or May generally, numerous benefits are expected when the fruits are harvested more early, but on the harvesting time, a certain limit should be present so as to make use of the fruits for manufacturing, even if the early harvest may be desirable.
This experiment was conducted to find out the limiting time for early harvest. The changes of components in the fruits sampled semi-monthly were investigated from October in 1964 to May in 1965.
Discussing on the results obtained, we reached a colusion that theiniddle of Deceinber was one of tlle harvesting time of Citrus Natsudaidai fruits. By the middle of December, the fruit size has grown enough and components in the fruits have come to considerable amount and no troubles are expected in using them as materials for manufcturing.