Antal, G., Kurucz, E., Koncz, K., Kaszás, L., & Fári, M. G. (2021). Effect of hydroponic and peat-free media in transplant production of Rudbeckia hirta varieties under different photoperiodic lighting and their photosynthetic parameters. International Journal of Horticultural Science, 27, 110–117. https://doi.org/10.31421/ijhs/27/2021/9865
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The purpose of this research was to determine the effects of varieties, different light conditions (short day, long day, natural short day with light pollution), and different growing media (perlite, peat-free, peat-based, aeroponics system) on Rudbeckia hirta plant production under controlled conditions (greenhouse). The morphological effects of each treatment (photoperiodic lightings and media) on different Rudbeckia varieties determined at 11 weeks-old ’Napfény’, ’Toto Gold’, ’Autumn Colors’, ’Prairie Sun’ and 16 weeks-old ’Napfény’. Plantlets received 12 hours daylight did not initiate flowers, remained stage of the leaf rosette in case of all varieties. The 14 hours light treatment in the aeroponics system and the same treatment in perlite and control (natural short day with 14 hours light pollution) plantlets had developed inflorescences or flower buds. The inflorescence axis of ‘Napfény’ was appeared at 13 weeks under long-day conditions, with 1.7 (perlite) - 2.7 (aeroponics) flower buds in 16 weeks. ’Toto Gold’, ’Autumn Colors’, ’Prairie Sun’ varieties developed inflorescences at 8 weeks, 14 hours aeroponics system resulted in the most of flower buds (’Toto Gold’: 6.5, ’Autumn Colors’: 3.25,’Prairie Sun’: 4.8 flower buds) at 11 weeks. Long daylight manipulation could be minimized crop times and achieved flowering potted plants at 11 weeks. The peat-based and peat-free media effect was observed on ‘Autumn Colors’. The number of leaves of peat-free ‘Autumn Colors’ transplants (16.8-20.3) was significantly higher than peat-based media (13.5-15.5). Other morphological parameters were not affected by the media treatments.
Download data is not yet available.
Metrics Loading ...
Almeida‐Cortez, J., Shipley, B., Arnason, J. T. (2003): Effects of nutrient availability on the production of pentaynene, a secondary compound related to defense, in Rudbeckia hirta. Plant Species Biology, 18. 85-89., https://doi.org/10.1111/j.1442-1984.2003.00095.x
Beckwith, D. D. (1991): Characterization of juvenility and photoperiodic responses of Rudbeckia hirta originating from different latitudes, Master of Science Thesis, Blacksburg, Virginia, USA. 87 p., https://vtechworks.lib.vt.edu/handle/10919/45987
Blanchard, M. G., Runkle, E. S. (2010): Intermittent light from a rotating high-pressure sodium lamp promotes flowering of long-day plants. HortScience, 45(2): 236-241. https://doi.org/10.21273/HORTSCI.45.2.236
Duma, M., Alsina, I., Zeipina, S., Lepse, L., Dubova, L. (2014): Leaf vegetables as source of phytochemicals. In 9th Baltic Conference on Food Science and Technology “Food for Consumer Well-Being” FOODBALT 2014 Conference Proceedings. Jelgava, LLU. P, 262-265.
Elkins, C., van Iersel, M. W. (2020): Longer photoperiods with the same daily light integral improve growth of Rudbeckia seedlings in a greenhouse. HortScience, 55(10): 1676-1682. https://doi.org/10.21273/HORTSCI15200-20
European Commission (2018): 52 steps – towards a greener city. Luxembourg: Publications Office of the European Union, Directorate-General for Environment, https://op.europa.eu/ en/publication-detail/-/publication/080dffa8-49c5-11e8-be1d-01aa75ed71a1/language-hu/format-PDF
FAO (2014): Towards climate-responsible peatlands management, Mitigation of climate change in Agriculture Series 9. Biancalani, R., Avagyan A. (eds.). Food and Agiculture Organization of the United Nations (FAO). http://www.fao.org/3/i4029e/i4029e.pdf
Luczkiewcz, M., Cisowski, W. (2001): Optimisation of the second phase of a two phase growth system for anthocyanin accumulation in callus cultures of Rudbeckia hirta. Plant Cell, Tissue and Organ Culture, 65. 57-68, https://doi.org/10.1023/A:1010652507981
Michael, B. R., Gedara, S. R., Amer, M. M., Stevenson, L., Ahmed, A. F. (2014): Evidence-based medicinal value of Rudbeckia hirta L. flowers. Natural Product Research, 28(12): 909-913. https://doi.org/10.1080/14786419.2014.891202
Moldovan, Z., Buleandră, M., Oprea, E., Mînea, Z. (2017): Studies on chemical composition and antioxidant activity of Rudbeckia triloba. Journal of Analytical Methods in Chemistry, Vol. 2017, Article ID 3407312, 8 pages, https://doi.org/10.1155/2017/3407312
Murneek, A. E. (1940): Length of day and temperature effects in Rudbeckia, Botanical Gazette, 102. 269-279. www.journals.uchicago.edu by Columbia University
Palmer, I. E., Ranney, T. G., Lynch, N. P., Bir, R. E. (2009): Crossability, cytogenetics, and reproductive pathways in Rudbeckia subgenus Rudbeckia. HortScience, 44(1): 44-48. https://doi.org/10.21273/HORTSCI.44.1.44
Roberto, L., Runkle, E. S. (2017): Light management in controlled environments. Meister Media Worldwide, First Edition, ISBN-10: 1544254490, 11-54.
Runkle, E. S., Heins, R. D., Cameron, A. C., Carlson, W. H. (1999): Photoperiod and cold treatment regulate flowering of Rudbeckia fulgida ’Goldsturm'. HortScience, 34(1): 55-58. https://doi.org/10.21273/ HORTSCI.34.1.55
Salas, M. C., Verdejo, M. M., Sánchez, A., Guzmán, M., Valenzuela, J. L., Montero, J. L. (2010): Vertical gardening. Adaptation of hydroponic systems and ornamental species. In XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on 937. 1153-1160.
Sardare, M D., Shraddha V. A. (2013): A review on plant without soil-hydroponics. International Journal of Research in Engineering and Technology 2(3): 299-304. ISSN: 2319-1163