1. The History and Progress of Peach (Prunus persica L.) Breeding —BeiJing Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences Quan Jiang 2015.3

2. Early stage of breeding  Time ： 1961 ～  Breeding objectives: ordinary fresh peach, earliness and quality  Bred cultivars: jingzao 1 ～ jingzao 4 、 beijing 1 ～ beijing 33, and some good peach selections ， among them zaoxiangyu, maixiang, qingfeng, jingyu, jingyan and bayuecui were identified and registered.

3. Maixiang Zaoxiangyu Qingfeng Jingyu Jingyan Bayuecui

4. Canning peach breeding  Time: 1978 ～, The national cooperative group of yellow-fleshed peach breeding were established in 1978  Breeding objectives: yellow-flesh, clingstone, non-melting, early-ripening  Bred cultivars: yanfeng, yanjin, yanhuang, jingchuan

5. Yanhuang Jingchuan

6. Nectarine breeding  Time: 1981 ～  Breeding objectives: large fruit size, sweet, not splitting (Cracking), red, fragrant  Bred cultivars: ruiguang 1 ～ ruiguang 30, among them ruiguang 1, 2, 3, 5, 7, 11, 18, 19, 22, 27, 28, 29 （ ruiguangmeiyu ）, 33, 39, xiazhihong and xiazhizaohong were regietered.

7. The first batch of bred nectarine varieties Ruiguang 5 Ruiguang 1 Ruiguang 2 Ruiguang 3 Ruiguang 11 Ruiguang 7

8. Ruigung 18 Nectarine Yellow-flesh Middle ripening Average single fruit weight: 210 g TSS 9-12 Brix

9. Ruiguang 19 Nectarine White-flesh Middle ripening Average single fruit weight: 150 g TSS 10-13 Brix

10. Ruiguang 22 Nectarine Yellow-flesh Early ripening Average single fruit weight: 158 g TSS 11 Brix

11. Ruiguang 27 Nectarine White-flesh Late ripening Average single fruit weight: 180 g TSS 11-13 Brix

12. Ruiguang 28 Nectarine Yellow-flesh Middle ripening Average single fruit weight: 260 g Clingstone TSS 10-14 Brix

13. Ruiguangmeiyu Nectarine White-flesh Middle ripening Average single fruit weight: 200 g Freestone TSS 11 Brix

14. Ruiguang 33 Nectarine White-flesh Middle ripening Average single fruit weight: 271 g Clingstone TSS 12.8 Brix

15. Ruiguang 39 Nectarine White-flesh Late ripening Average single fruit weight: 202 g Clingstone TSS 13 Brix

16. Xiazhihong Nectarine White-flesh Late ripening Average single fruit weight: 172 g Clingstone TSS 12.7 Brix

17. Xiazhizaohong Nectarine White-flesh Late ripening Average single fruit weight: 138 g Clingstone TSS 12.6 Brix

18. Ruiguang 35 Nectarine White-flesh Middle ripening Average single fruit weight:191g Freestone TSS 12.6 Brix

19. Ruiguang 45 Nectarine White-flesh Middle ripening Average single fruit weight: 220g Clingstone TSS 12.9 Brix

20. Flat peach breeding  Time:1985 ～  Breeding objectives: not splitting at top middle, uneasy tearing at bottom, flat, large fruit size, red, sweet  Bred cultivars: zaolupantao 、 ruipan 1 ～ ruipan 22, among them ruipan 2, 3, 4, 5, 10, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 and ruiyoupan 1 were registered.

21. Zaolupantao Early ripening Average single fruit weight: 103 g Clingstone

22. Ruipan 2 Middle ripening Average single fruit weight: 150 g Clingstone

23. Ruipan 3 Middle ripening Average single fruit weight: 220 g Clingstone

24. Ruipan 4 Late ripening Average single fruit weight: 221 g Clingstone

25. Ruipan 5 Middle ripening Average single fruit weight: 150 g Clingstone

26. Ruipan 10 Middle ripening Average single fruit weight: 183 g Freestone

27. Xiuzhenzaopan Very Early-ripening Average single fruit weight: 42 g Clingstone

28. Ruipan 13 Early ripening Average single fruit weight: 133 g Clingstone

29. Ruipan 14 Early ripening Average single fruit weight: 137 g Clingstone

30. Ruipan 16 Middle ripening Average single fruit weight: 122 g Clingstone

31. Ruipan 17 Middle ripening Average single fruit weight: 127 g Semi clingstone

32. Ruipan 18 Middle ripening Average single fruit weight: 155 g Clingstone

33. Ruipan 19 Middle ripening Average single fruit weight: 161g Clingstone

34. Ruipan 20 Very Late-ripening Average single fruit weight: 255 g Freestone TSS 13.1 Brix

35. Ruipan 21 Very Late-ripening Average single fruit weight: 236 g Clingstone TSS 13.5 Brix

36. Ruipan 22 Middle ripening Average single fruit weight: 182 g Clingstone

37. Late ripening Average single fruit weight: 226 g Clingstone TSS 12.6 Brix Ruipan 24

38. Ruiyoupan 1 Very Late-ripening Average single fruit weight: 81 g Clingstone TSS 13.8 Brix

39. Ruiyoupan 2 Middle-ripening Average single fruit weight: 122 g Clingstone TSS 13.5 Brix

40. Other Breeding  Rootstock breeding  1999 ～； cross combination: mountain peach × Siberia C 、 mountain peach ×gansu peach etc. obtaing 2 good selections  Ornamental peach breeding 1978 ～； obtaining good selections such as Ornamental peach 2, 3, 5, 6 and 10.

41. Ornamental peach Ornamental peach 3

42. Zaomei White-flesh peach Very Early-ripening Average single fruit weight: 97 g Clingstone TSS 8.5-9.5 Brix

43. Wanmi White-flesh peach Very Late-ripening Average single fruit weight: 230 g Clingstone TSS 12-16 Brix

44. Huayu White-flesh peach Late ripening Average single fruit weight: 270 g Free stone Stonyhard TSS 13.5 Brix

45. Ruihong White-flesh peach Very Early-ripening Average single fruit weight: 193 g Clingstone TSS 10 Brix

46. Zaoyu middle-ripening average single friut weight:195g Non-melting Free stone Stonyhard TSS 13 Brix

47. Good selections

48. Peach White flesh early-ripening average single friut weight:282.5g Clingstone TSS 9.83 Brix

49. Red flesh early-ripening average single friut weight:117.3g Clingstone TSS 13.4 Brix Flesh-red Nectarine

50. Flat peach Late ripening 、 Yellow flesh 、 Large fruit

51. Nectarine Flat peach

52. 2005-6-17 east Yellow flesh peach Canning peach ， Yellow flesh ， Cling stone ， Low-chilling

53. Cooperation Breeding of Sino-Thai in Peach (Prunus persica L.) 2002-5-30E Thailand Ankang test station （ 300~400hr ） Low-chilling, flower in mid to late December, maturing in mid April 2007 ， TSS 18% Brix.

54. Future Breeding Objective  Peach: Quality breeding mainly on high sweetness.  Nectarine: large fruit size, red, Late-maturing  Flat peach: not splitting (Cracking), red  Stock: Anti successive crop Rootstock, Dwarf Rootstock  Low-chilling cultivars: The chilling under 500 hours, Suitable for the South and the North greenhouse cultivation in China  Germplasm Resources Research: Micro peach, Very early-ripening peach, Narrow leaf peach

55. Thank you ！ xie xie!