Dalian Institute of Agricultural Sciences is a hybrid of Naong× Topaz. Due to its early maturity and high yield, it has developed greatly in the past decade. Redmi is a red variety with medium fruit, early maturity, soft and yellow background. The tree has medium potential, open posture, small crown, strong germination and branching ability of buds, many branches and easy formation of flower buds. Generally, flower buds can be formed in the second year after planting, and enter the early stage of full fruit in the fourth year, with large flowers, which is the most suitable pollination variety. Redmi is a high-yield variety with high fruit setting rate. The fruit is medium-sized, with an average single fruit weight of 6.0 grams, uniform and tidy, and the fruit shape is wide and heart-shaped; The background color of the peel is yellow, with bright red light, and most of the fruit surfaces with good light are bright red; The meat is soft and juicy, mainly sweet, slightly sour and of good quality; The soluble solid content is17%; The core is small and sticky, and the edible part accounts for 92.3%. The maturity period is from the end of May to the beginning of June, 4-5 days later than that of Hongguang, and the fruit development period is 40-50 days.