@article{LIU:333618,
      recid = {333618},
      author = {LIU, Jinli and YU, Qiuxiang and CUI ,Lixian and LIU ,Jing  and BAI ,Zhongkui },
      title = {Study on Top Grafting Technology of Bare Scions of Walnut  Trees in Eastern Hebei},
      journal = {Asian Agricultural Research},
      address = {2022-06-20},
      number = {1812-2023-564},
      month = {Jun},
      year = {2022},
      abstract = {[Objective] To accelerate the improvement of walnut  varieties and change the cultivation status of low yield  and poor quality. [Method] Through experimenting on the  optimization technology of walnut trees, this paper studied  the suitable top grafting period and scientific top  grafting protection measures of walnut trees in Eastern  Hebei, and established the top grafting technology system  of walnut. Moreover, this paper explored the impact of  different time and scientific management and protection  measures on the survival rate and growth of bare scion top  grafting of walnut trees. [Results] The grafting time had a  great impact on the growth of new shoots, and there were  significant differences in the survival rate among  different grafting periods. The highest grafting survival  rate was 96.97% on April 27 and the lowest grafting  survival rate was 66.67% on May 4; the average survival  rate was 78.10%. Among them, the survival rate of top  grafting was the highest on April 20 and April 27. The  growth of new shoots grafted in the early stage was greater  than that in the late stage. The growth of new shoots and  branches on April 8 and April 20 were the largest, with  lengths of 160.3 and 143.7 cm respectively; the thickness  was 1.72  and 1.43 cm respectively; the branch lengths were  79.8 and 63.4 cm respectively; the branch thickness was  0.98 and 0.82cm; the growth index was also the highest on  April 8 and April 20 at 10 , 20  and 30 d, which was  significantly different from other time periods.  [Conclusion] Walnut trees with early grafting in Eastern  Hebei can quickly restore their crown growth and had higher  yield, thus this technology can be widely applied in  Eastern Hebei or Yanshan area.},
      url = {http://ageconsearch.umn.edu/record/333618},
      doi = {https://doi.org/10.22004/ag.econ.333618},
}