earticle

영어

The distribution of fruit characteristics of hybrid seedlings in cross combination of ‘Ehimekashi28gou’ was analyzed as data for citrus breeding. The larger fruit weight of male parent was, that of seedlings was large. The sugar content of the seedlings was lower than that of the male parent when using male parents with high sugar content. When male parents with low sugar content were used, the sugar content of the seedlings was improved than that of the male parent varieties. The acid content showed different characteristics depending on the male parents, and the use of ‘Seminole’ as male parent was highly likely to produce seedlings with high acid content. The peel color was different depending on the male parents. The proportion of seedlings with sugar content of 13 °Bx or more and acidity 1% or less was 0～9%, which was high in ‘Kanpei’ and ‘Setomi’, but not in ‘Natsumi’. In the case of sugar content of 10 °Bx or more and sugar acid ratio of 13 or more, was 0～32.1% higher than that of sugar content of 13 °Bx or more and an acidity of 1% or less. In summary, in the case of using ‘Ehimekashi28gou’ as the female parent, it was good to use male parents with a large fruit in order to obtain seedlings with a large fruit. And it would be advantageous to use male parents with high sugar content and low acidity in order to obtain seedlings with high sugar content and low acidity. Among the six combinations, the combination of ‘Ehimekashi28gou’ × ’Kanpei’ and ‘Ehimekashi28gou’ × ’Page’ was a good combination for high-quality production.