The 'Millennium 1' mandarin variety is a selection result obtained in 2006 based on soft seeds (C. unshiu Marc.) and crossing Japanese varieties Kowano-Wase and Miyagawa-Wase. The medium-sized tree, up to 2.5 m tall, has a dense, medium-foliage crown with straight or slightly curved main branches and short one-year-old shoots covered with small thorns. Leaves are of medium size (10×4.5 cm), dark green, with slight concavity and a pitted surface, giving the tree a decorative look.
The 'Millennium 1' fruits are large, round (approximately 5.8×4.6 cm) with a mass of 83 to 90 g. The peel is thin (2–3 mm), smooth, and orange, poorly separating from the pulp, ensuring ease of consumption fresh. The pulp is tender, juicy, rich orange, with abundant juice; the taste is sour-sweet, seedless. Inside the fruit are 9–11 segments covered with thin membranes. The dry matter content is 11.4%, sugars – 8.0%, and citric acid – 0.9%. Ascorbic acid is present in an amount of 35.4 mg/100 g.
The variety is distinguished by high yield (180–200 c/ha) and good fruit preservation. It is frost-resistant at the Unshiu mandarin level, making it suitable for cultivation both in open ground and at home. Thanks to compact growth, the tree can be used in small gardens and containers; fruiting is possible from the first year after planting. The variety has been under observation for several years, after which official evaluation of its quality and recognition as a bred variety are planned.
