Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (4): 868-874.doi: 10.16420/j.issn.0513-353x.2021-0198

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Anatomical Observation on the Graft Union Between Potato and Wolfberry

QI Lipan1,2, LI Yue2, WANG Lei2, FENG Yan2, WANG Kuan2, YIN Jiang2, GUO Huachun1,**()   

  1. 1. Tuber and Root Crop Research Institute,Yunnan Agricultural University,Kunming 650201,China
    2. Rain-fed Agricultrue Research Center,Hebei North University,Zhangjiakou,Hebei 075000,China
  • Received:2021-09-28 Revised:2022-01-18 Online:2022-04-25 Published:2022-04-24
  • Contact: GUO Huachun


In order to reveal the graft union process between potato and wolfberry,anatomical observation of potato/wolfberry grafting system was carried out using paraffin section technique. The results showed that the potato/wolfberry grafting system grew vigorously and could complete the entire reproductive process. The union process of potato/wolfberry grafting could be divided into four stages:(1) isolation layer generation period,5 d after grafting,an isolation layer was formed at the grafting interface;(2) callus formation period,9 d after grafting,the isolation layer cells dedifferentiated,finally callus was formed;(3) callus differentiation stage,13 d after grafting,the callus differentiated,forming callus bridge;(4) new vascular tissue formation period,17 d after grafting,new phloem,xylem and vascular bundle bridges were formed which made the rootstock and scion fully combined,and the union process was finished.

Key words: potato, wolfberry, paraffin section, grafting union

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