关键词: 桃, 品种

Abstract: ‘Zhongtao 21’，originated from artificial pollination，is a late-ripening peach cultivar. The fruit is round with average weight about 265 g and the biggest one weighs over 510 g. When ripe，over 50% of the fruit skin is covered by dark red on light green-white background. The flesh is white，melting and taste sweet with light aroma. The fruit juice contains 12.6%–13.9% soluble solids，11.2% total sugar，0.37% total acid and 0.127 mg ? g-1 vitamin C. The stone is long elliptical and cling to the flesh. In Zhengzhou，the flowers bloom in late March. The fruit mature in middle of August and the fruit development period is about 140 days. The flowers are showy and the anthers are white without pollen. The yield of 3-year-old trees is about 16.7 t ? hm-2 and reach 32.2 t ? hm-2 at the 5th year.

Key words: peach, cultivar