Journal of Tianjin Agricultural University ›› 2020, Vol. 27 ›› Issue (2): 1-5.doi: 10.19640/j.cnki.jtau.2020.02.001

• Researches and Scientific Notes •     Next Articles

Study on transplanting directly into ground of Malus zumi plantlet in vitro in field environment

ZHU Lin, CHAI Ci-jiangCorresponding Author, GUO Jing, SHI Hai-dong, YAO Tong-liang   

  1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2019-09-26 Online:2020-06-30 Published:2020-07-03

Abstract: This paper aimed at researching on transplanting directly into ground techniques in field of Malus zumi plantlet in vitro. With the Malus zumi plantlet rooted in soil-supporting medium the experiments of two shading methods with shading net and two covering methods with plastic film after transplanting had been done. The effects of different transplanting periods on the plantlet survival were also studied. The results showed that the stem diameter of the transplanted plantlet shaded with the thin shading net after transplanting were significantly higher than that of the plantlet shaded with the dense shading net, and the height of the transplanted plantlet covered with the top opening plastic film was significantly higher than that of the plantlet covered with completely closed plastic film. There was no significant difference in the survival rate of the plantlet among three transplanting time of April 8, May 4 and June 8 and the survival rate reached 83.3%~100.0%. The earlier the transplanting time, the higher the plant height and stem diameter of the plantlet. These results can provide a basis for simplifying the transplanting procedure and reducing the cost of Malus zumi plantlet in vitro.

Key words: Malus zumi, plantlet in vitro, field, transplanting

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