Kumquat is the fruit can be eaten with skin among citrus fruits. The size, amount and inclusion of oil vacuole on pericarp can directly affect the edible quality. Therefore, for the sake of the kumquat oil vacuole, this experiment will take a research on the fruit quality as well as the differences of oil vacuole's size and amount through taking common kumquat Rongan with more oil vacuole, kumquat Huapi in bud mutation with less oil vacuole and kumquat Cuimi in bud mutation with least oil vacuole as the res...