Abstract
In this study, the variability of solid soluble content (%Brix) of leek inside of an individual, among individuals, and at different growing areas was investigated as an indicator of internal quality. In addition, the time course of the %Brix in each growing area at different harvest timings were revealed. In consequence, %Brix of lower part of stalk was higher than that of higher part of stalk. This change of %Brix inside the stalk could be approximated by a power function. Coefficients of the power function expressed differences among growing areas and changes at different harvest timings. Therefore, these coefficients can be utilized as indicators for cultivation management and branding.
