earticle

영어

Citrus is very important fruit crop in Korea. We need to develop new Citrus cultivar to overcome internationally competition due to Korea-USA FTA. We have induced citrus mutation by gamma ray of 60Co since 2005. We have focused on the phenotypical characteristics containing higher sweetness and lower acidity in the mutants. Four years from 2009 to 2012, we compared the results of the investigation. In the fruits of mutant branch, ratio of sweetness/acidity was higher than control plant. This results occurred by the increment of sweetness in mutant, but the acidity was similar to control. The fruit weight and size of mutant fruit were bigger than those of control. The selected branch would be grafted onto stem of mature plant or of young citrus plant.