Abstract: Flat peach is originated in China and popular for its unique flat shape and excellent flavor. But for a very long time, there were not so many cultivars for farmers to choose for the fruit apex of most of the cultivars did not close well and the appearance were also not so desirable. In the past few decades, most deficits were improved along with several flat peaches were released, like Jinxia Youpan, Zhong Pantao 11, Zhongyoupan 7, et al. And a era for flat peach has arrived in China.Zhong Pan 102 is a new released yellow-flesh flat peach which was bred by Zhengzhou Fruit Research Institute, CAAS. In 1999, Fengbai, a white flesh peach with big fruit but sterile, was chosen as female parent and ‘NF9260’, a late matured flat nectarine with yellow, thick flesh but small fruit, was chosen as pollen donation. Among the offspring, a flat peach numbered 99-42-41 was selected for its’ bigger fruit and prominent appearance. But the yield is not ideal. In 2011, a self-fruited, high yield nectarine cultivar ‘Zhongyou 13’ was chosen as male parent to pollinate 99-42-41 and 31 seedlings were obtained finally. All the seedlings were planted with 1.0 m for row space and 4.0 m for line space in spring of 2012. The trees were trained to spindle shape and only pruned slightly every winter. Other managements were according to routine. Most of the seedlings began to flower and fruit in 2014. The plant numbered 11-16-42 performed noticeably well with big fruit, good appearance and high yield. The main characters of the mother tree and the grafted trees were stable in the followed several fruiting years. The regional trial began from 2016 and authorized to release in 2021. The main economic characters are as follows: The trees of Zhongpan 102 are vigorous with semi-erect tree appearance. The branches are red on the sunny side and the germinating and branching rate are middle. The average inter-nodes length is about 2.36 cm. The leaves is about 15.8 cm long, and 3.8 cm wide. The leaf is elliptic lanceolate, with 2-4 reniform leaf glands. The flower is pink with 5 petals. The inner wall of calyx tube is orange. It’s fertile and normally yield very high. The fruits of Zhongpan 102 are large and the average fruit mass is 180-230 g. The fruits are flat with light green-yellow background and more than 60% covered with rosy red when mature. The hair on pericarp is medium length and density. The pericarp is medium thickness and can not separate from the flesh. The flesh is yellow with no anthocyanins in the flesh and under the pericarp at maturity, occasionally a small amount of anthocyanins near the pit. The flesh tastes sweet, juicy and less fiber. The fruit juice contains 12.7%-16.0% soluble solids. The fruit stones are medium size, flat shape, brown, with a little grain and furrow on the surface. It’s cling-stone. In Zhengzhou, the germinating time(late February) and flowering time (middle-late March) of Zhongpan 102 are a little early. The fruits mature in late June, and the fruit development period is about 95 days. The leaves begin to fall in early November, and the annual growth period is about 240 days. Zhongpan 102 is recommended to be planted in northern China. Attention should be paid to avoid the alternation of drought and flood in production.
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