Journal of Forest and Environmental Science

Institute of Forest Science, kangwon National University (강원대학교 산림과학연구소)
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Propagation by Leafy Stem Cuttings Containing Xylem of Populus alba × P. glandulosa Clone Bongwha1

  • Hak Gon, Kim (Forest Research Department, Gyeongsangnam-do Forest Environment Research Institute) ;
  • Seong Hyeon, Yong (Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Hyung Ho, Kim (Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Myung Suk, Choi (Division of Environmental Forest Science & Institute of Agriculture and Life Science, Gyeongsang National University)
  • Received : 2022.10.11
  • Accepted : 2022.11.26
  • Published : 2022.12.31
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Abstract

The study was conducted to establish a method for the proliferation of hybrid poplar (P. alba × P. glandulosa) clone Bongwha1, an excellent biomass species. It was found that to collect the cuttings of Bonghwa1, it was necessary to use the main stem rather than the axillary branch. Stem growth by green-wood cuttings showed a tendency to decrease as the length of the collected cuttings increased, but the survival rate was low. Therefore, modified leafy stem cutting was attempted to increase the survival rate of the cuttings. In the modified leafy stem cutting method, 4 leaves were included in the cuttings, and especially, cuttings were performed using cuttings containing 2-4 cm xylem parts. Leafy stem cutting increased root growth and the number of stems, as well as the survival rate of hybrid poplar clone Bongwha1 compared to green-wood cuttings. The root growth of the leafy stem cutting poplar was better as there was more xylem part. Using two-year-old nursery stocks, the leafy stem cutting was used to produce about 66 cuttings. This study is expected to contribute to the mass propagation of high-quality nursery stocks.

Keywords

Acknowledgement

This work was supported by the "Multiple stress tolerance assessment and customized mapping of domestic major afforestation tree species to prepare for climate change (No. 2017R1D1A1B04036320)" of National Research Foundation of Korea.

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