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ACTA HORTICULTURAE SINICA ›› 2013, Vol. 40 ›› Issue (7): 1407-1408.

• New Cultivars • Previous Articles     Next Articles

Apple Apomictic Rootstock‘Qingzhen 1’

SHA Guang-li1,*,HAO Yu-jin2,GONG Xiang-hui1,SHU Huai-rui2,HUANG Yue1,SHAO Yong-chun1,and YIN Tao1   

  1. 1Qingdao Agricultural Academy,Qingdao,Shandong 266100,China;2College of Horticulture Science & Engineering,Shandong Agricultural University,Tai’an,Shandong 271018,China
  • Received:2013-02-26 Online:2013-07-25 Published:2013-07-25

Abstract: Apomictic apple rootstock‘Qingzhen 1’is obtained by a traditional hybridization breeding approach in 1999. Its maternal and paternal parents are apomictic crabapple‘Pingyitiancha’(Malus hupehensis Rehder)and columnar apple strain‘CO’(Malus × domestica Borkh.),respectively.‘Qingzhen 1’tree is gentleness with a columnar habit. Its apomictic fruit setting ability is high up to 97.0%–98.1%,and therefore it propagated with seeds. The population of one-year-old‘Qingzhen 1’seedlings are uniform in apperance,dwarf in stature and vigorous in growth. As rootstock,the seedlings of‘Qingzhen 1’had a
good compatibility with scion cultivars, such as‘Gala’,‘Fuji’and‘Jonagold’. As a result,the grafted tree exhibited high resistance to apple branch ring rot and re-plant disease,as well as early flowering,increased fruit yield and good quality. To sum up,‘Qingzhen 1’is suitable to use as apple rootstock in themain production region for apple industry around Bohai Bay and Loess Plateau.

Key words: apple, apomixis, rootstock, cultivar

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