Zhongtao No. 9 is the latest product developed by the Zhengzhou Fruit Tree Research Institute of the Chinese Academy of Agricultural Sciences. The fruit development period is about 85 days. The fruit is nearly round, with thin skin and white flesh, crisp and sweet taste, and a rich variety. Including morphological characteristics, variety characteristics, fruit characteristics, cultivation techniques, time to market, etc.
1. Morphological characteristics
Zhongtao No. 9 is a blood peach variety without sour taste. It takes a long time to bear fruit and is suitable for planting in the north and south. Altitude and temperature differences have little effect on this species. Cultivation technology of Big Fruit Blood Peach No. 9. The flesh is white, light green-white, yellow, orange or red, juicy and fragrant, sweet or sour. The nucleus is large, free or clinging, oval or nearly round, flat on both sides, apex acuminate, with longitudinal and transverse grooves and holes on the surface.
2. Variety Characteristics
The fruit development period of Zhongtao No. 9 is about 63 days. It usually matures in mid-to-late May and falls leaves from late October to early November. The tree is strong and half-open. The fruiting branches are strong, the average branches have good fruit setting, the flower buds are well differentiated, the flowers are bell-shaped, the pistils are curved, higher than the stamens, and there is pollen. Since the autoflowering rate is slightly lower, a certain number of pollinating trees should be used in the open field or supplemented by artificial pollination. It is suitable for planting in areas with an average annual temperature below 18°C. The temperature during the flowering period needs to be controlled between 18 and 20°C to increase the fruit setting rate.
3. Fruit Characteristics
The fruit of Zhongtao No. 9 is large, with an average fruit weight of 170 to 210 grams, and the maximum weight can be more than 300 grams. The fruit is nearly round, and when mature, the surface of the fruit will turn rose red over 80%, making it more beautiful. The flesh is white, crisp and hard when matured 8 to 9, slightly soft after ripening, the flesh is fine and crisp, the flavor is sweet and slightly fragrant, soft and juicy when ripe, the peel is medium thick and difficult to peel off, and the soluble solid content is 10 to 12.
IV. Cultivation technology
In the year after Zhongtao No. 9 peach seedlings are planted, when the new shoots grow to more than 5 cm, apply quick-acting nitrogen fertilizer. In the future, it can be applied every other year depending on the growth situation. Water 2 to 3 times continuously for 7 to 10 days. Before germination of fruit-bearing trees, in the late hard-core stage, and in the early stage of fruit enlargement, top dressing should be carried out according to tree vigor, fruiting status, climatic conditions, etc. Among them, the late hard-core stage is the most important and must be carried out. Fertilizers are mainly phosphorus and potassium compound fertilizers, applied at 50 to 100 kilograms per mu.
5. Time to market
The fruit growth period of Zhongtao No. 9 is about 65 days, maturing 5 to 7 days earlier than Chunmei, and more than 10 days earlier than Zhongtao No. 9. The Hunan-Hubei border areas will mature in mid-to-late May, and the central and southern Hunan Province, Jiangxi Province, and Guangxi Zhuang Autonomous Region will mature in mid-to-early May, basically at the same time as the greenhouse peaches in the north.