Journal of People, Plants, and Environment (인간식물환경학회지)

Society For People, Plants, And Environment (인간식물환경학회)
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Effects of Nutrient Solution Application Methods and Rhizospheric Ventilation on Vegetative Growth of Young Moth Orchids without a Potting Medium in a Closed-Type Plant Factory

  • Min, Sang Yoon (Department of Horticulture & Life Science, Yeungnam University) ;
  • Oh, Wook (Department of Horticulture & Life Science, Yeungnam University)
  • Received : 2020.10.14
  • Accepted : 2020.10.23
  • Published : 2020.10.31
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Abstract

Background and objective: Moth orchids in the vegetative stage are suitable for a multi-layer growing environment in a closed-type plant factory which can be a good alternative that can reduce production costs by reducing cultivation time and energy cost per plant. This study was conducted to find out the optimal rhizospheric environment for different irrigation methods without a potting medium and rhizospheric ventilation for the vegetative growth of young Phalaenopsis hybrid 'Blanc Rouge' (P. KV600 × P. Kang 1) and Phalaenopsis Queen Beer 'Mantefon' in a closed-type plant factory system. Methods: The one-month-old clonal micropropagules with bare roots rapped with a sponges were fixed on the holes of styrofoam plates above growth beds, and were watered using the ebb-and-flow (EBB) and aeroponic (AER) methods with Ichihashi solution (0.5 strength) once a day at 06:00 (P) or 18:00 (S), and both (PS). Rhizospheric ventilation (V) was also applied to change the temperature, relative humidity, and CO2 concentration of the beds. Plants potted into sphagnum moss and watered once a week were used as the control group. Results: After 12 months of treatment, the growth characteristics of the EBB groups were the best among the treatment groups without a medium, but no effect of irrigation timing was observed. V reduced the temperature, relative humidity and CO2 concentration of the beds. Whereas, EBB+V (ebb-and-flow with ventilation) improved plant growth and reduced the occurrence of disorders and withering. Especially, EBB+V showed a similar performance to the control group. Conclusion: The results indicated that the optimal irrigation method without a potting medium for producing middle-aged potted moth orchids was the EBB system with forced rhizospheric ventilation. Therefore, further studies on the optimal ventilation method and moisture control of the crown need to be carried out to develop the irrigation system without a potting medium for vertical farming in closed-type plant factories.

Keywords

Acknowledgement

This research was supported by Export Promotion Technology Development Program (317020-5), Ministry of Agriculture, Food and Rural Affairs (Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry).

References

  1. Augustus, M. and L. Knudson. 1957. The role of velamen of the aerial roots of orchids. Bot. Gaz. 119(2):78-87. https://doi.org/10.1086/335966
  2. Chung, S.J., B.S. Lee, and K.B. Ahn. 1997. Effect of cultural system and ionic strength of nutrient solution on the growth of dendrobium (Dendrobium phalaenopsis) seedlings. J. Biol. Prod. Facil. Environ. Control 6(4):284-291.
  3. Hwang, S.J. and B.R. Jeong. 2006. Growth of Phalaenopsis in an ebb-and-flow system as affected by ionic strength of solution. Hortic. Environ. Biotechnol. 47(2):100-104.
  4. Hwang, S.J. and B.R. Jeong. 2007. Growth of Phalaenopsis plants in five different potting media. J. Jpn. Soc. Hortic. Sci. 76(4):319-326. https://doi.org/10.2503/jjshs.76.319
  5. Hwang, S.J. and B.R. Jeong. 2009. Growth of Phalaenopsis plants as affected by nutrient solution composition. Korean J. Hortic. Sci. Technol. 27(1):73-80.
  6. Hwang, S.J., I. Sivanesan, and B.R. Jeong. 2009. Short-term ion uptake by Phalaenopsis as affected by concentration of the solution. J. Plant Nutr. 32(12):2044-2061. https://doi.org/10.1080/01904160903308143
  7. Hwang, S.J., M.R. Huh, J.I. Chung, and B.R. Jeong. 2004. Growth of Phalaenopsis in a recirculating ebb and flood hydroponic system as affected by ionic strength of solution and medium composition. In: D.J. Cantliffe, P.J. Stoffella, N.L. Shaw (Eds.), Proceedings of VII International Symposium on Protected Cultivation in Mild Winter Climates: Production, Pest Management and Global Competition 659 (pp. 637-645). Floridam USA: Acta Horticulturae. https://doi.org/10.17660/ActaHortic.2004.659.82
  8. Ichihashi, S. 1997. Orchid production and research in Japan. In: J. Arditti and A.M. Pridgeon (eds.). Orchid Biology, Reviews and Prospectives (pp. 171-212). UK: Kluwer Academic.
  9. Kim, H.J., J.Y. Kim, D.L. Yun, K.S. Kim, and Y.J. Kim. 2016. Growth and flowering of Doritaenopsis Queen Beer 'Mantefon' as affected by different potting substrates. Hortic. J. 85(4):360-365. https://doi.org/10.2503/hortj.MI-133
  10. Lee, D.S., O.K. Kwon, Y.B. Lee, B.W. Yae, and Y.R. Lee. 2010a. Optimum irrigation interval for the growth of Phalaenopsis hybrid seedling in the aeroponic system. J. Bio-Environ. Control 19(4):234-239.
  11. Lee, H.B., S.K. An, and K.S. Kim. 2015. Inhibition of premature flowering by intermittent high temperature treatment to young Phalaenopsis plants. Hortic. Environ. Biotechnol. 56:618-625. https://doi.org/10.1007/s13580-015-1082-1
  12. Lee, H.J., Y.B. Lee, and J.H. Bae. 2004. Effect of root zone temperature on the growth and quality of single-stemmed rose in cutted rose production factory. J. Bio-Environ. Control 13(4):266-270.
  13. Lee, H.B., S.H. Lim, N.H. Lim, S.K. An, and K.S. Kim. 2018. Growth and CO2 exchange in young Phalaenopsis orchids grown under different levels of humidity during the vegetative period. Hortic. Environ. Biotechnol. 59(1):37-43. https://doi.org/10.1007/s13580-018-0005-3
  14. Lee Y.B. and D.S. Lee. 2004. Selection of optimal hydroponic system for growth of Phalaenopsis. J. Korean Soc. Hortic. Sci. 45(2):109-114.
  15. Lee, Y.R., Y.B. Lee, B.W. Yae, and D.S. Lee. 2010b. Optimum ratio of NO3- to NH4+ in nutrient solution for the growth of Phalaenopsis hybrid. Prot. Hortic. Plant Fact. 19(4):229-233.
  16. Ministry of Agriculture, Food and Rural Affairs. 2015. The present state in floricultural production of Korea in 2014. Sejong, Korea: Author.
  17. Martin, CE., E.J. Mas, C. Lu, and B.L. Ong. 2010. The photosynthetic pathway of the roots of twelve epiphytic orchids with CAM leaves. Photosynthetica 48(1):42-50. https://doi.org/10.1007/10.1007%2Fs11099-010-0007-6
  18. Ota, K.,K. Morioka, and Y. Yamamoto. 1991. Effects of leaf age, inflorescence, temperature, light intensity, and moisture conditions on CAM photosynthesis in Phalaenopsis. J. Jpn. Soc. Hortic. Sci. 60(1):125-132. https://doi.org/10.2503/jjshs.60.125
  19. Rabas A.R. and C.E. Martin. 2003. Movement of water from old to young leaves in three species of succulents. Ann. Bot. 92(4):1-8. https://doi.org/10.1093/aob/mcg171
  20. Rural Development Administration. 2018. A manual of environmental management for smart greenhouses. Jeonju, Korea: Author.
  21. Wang Y.T. 1995. Medium and fertilization affect the performance of potted Dendrobium and Phalaenopsis. HortTechnology 5(3):234-237. https://doi.org/10.21273/HORTTECH.5.3.234
  22. Wang, Y.T. 1996. Effect of six fertilizers on vegetative growth and flowering of Phalaenopsis orchids. Sci. Hortic. 65(2-3):191-197. https://doi.org/10.1016/0304-4238(96)00875-8
  23. Wang Y.T. 1998. Impact of salinity and media on growth and flowering of a hybrid Phalaenopsis orchid. HortScience 33(2):247-250.
  24. Wang, Y.T. and L.L. Gregg. 1994. Medium and fertilizer affect the performance of Phalaenopsis orchids during two flowering cycles. HortScience 29(4):269-271. https://doi.org/10.21273/HORTSCI.29.4.269