High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence
The southern African geophyte Lachenalia with an enormous number of species and cultivars is nowadays a commercially important plant material. There is a need for research on the optimization of growing conditions to obtain a satisfactory visual quality of potted plants, which may boost its producti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2019-06-01
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| Series: | Folia Horticulturae |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/fhort-2019-0006 |
| _version_ | 1818731912973254656 |
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| author | Wojciechowska Renata Hanus-Fajerska Ewa Kamińska Iwona Koźmińska Aleksandra Długosz-Grochowska Olga Kapczyńska Anna |
| author_facet | Wojciechowska Renata Hanus-Fajerska Ewa Kamińska Iwona Koźmińska Aleksandra Długosz-Grochowska Olga Kapczyńska Anna |
| author_sort | Wojciechowska Renata |
| collection | DOAJ |
| description | The southern African geophyte Lachenalia with an enormous number of species and cultivars is nowadays a commercially important plant material. There is a need for research on the optimization of growing conditions to obtain a satisfactory visual quality of potted plants, which may boost its production on the international ornamental market. Our research can be considered as an innovative study on supplemental irradiation with various light spectra in relation to flower quality of Lachenalia spp. The main objective was to examine the usefulness of LED lighting in extending the length of the natural day to a 16/8 h photoperiod in order to control the development of Lachenalia ‘Rupert’ inflorescence during greenhouse cultivation in Central-European winter time. Three light treatments were applied with red (660 nm) and blue (440 nm) light in different ratios: 100% red (100/0), 90% red mixed with 10% blue (90/10) and 80% red with 20% blue (80/20). The PPFD at the plant leaf level was approx. 150 µmol m−2 s−1. The most favourable spectrum, 90/10, induced the longest inflorescences characterized by the highest stem diameter with simultaneously the highest number of florets. Additionally, blue light increased the anthocyanin content in the corolla by about 35%, compared with plants exposed to 100% red light and non-irradiated ones (control plants). This first study on the wavelength ratios is aimed to increase the production quality of Lachenalia and indicates the need for continuation. |
| first_indexed | 2024-12-17T23:25:13Z |
| format | Article |
| id | doaj.art-45bf6eb678f94ccc817ed6a254e45e87 |
| institution | Directory Open Access Journal |
| issn | 2083-5965 |
| language | English |
| last_indexed | 2024-12-17T23:25:13Z |
| publishDate | 2019-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Folia Horticulturae |
| spelling | doaj.art-45bf6eb678f94ccc817ed6a254e45e872022-12-21T21:28:48ZengSciendoFolia Horticulturae2083-59652019-06-013119310010.2478/fhort-2019-0006fhort-2019-0006High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescenceWojciechowska Renata0Hanus-Fajerska Ewa1Kamińska Iwona2Koźmińska Aleksandra3Długosz-Grochowska Olga4Kapczyńska Anna5Institute of Plant Biology and BiotechnologyInstitute of Plant Biology and BiotechnologyInstitute of Plant Biology and BiotechnologyInstitute of Plant Biology and BiotechnologyInstitute of Plant Biology and BiotechnologyDepartment of Ornamental Plants, University of Agriculture in Krakow, 29 Listopada 54, 31-425Krakow, PolandThe southern African geophyte Lachenalia with an enormous number of species and cultivars is nowadays a commercially important plant material. There is a need for research on the optimization of growing conditions to obtain a satisfactory visual quality of potted plants, which may boost its production on the international ornamental market. Our research can be considered as an innovative study on supplemental irradiation with various light spectra in relation to flower quality of Lachenalia spp. The main objective was to examine the usefulness of LED lighting in extending the length of the natural day to a 16/8 h photoperiod in order to control the development of Lachenalia ‘Rupert’ inflorescence during greenhouse cultivation in Central-European winter time. Three light treatments were applied with red (660 nm) and blue (440 nm) light in different ratios: 100% red (100/0), 90% red mixed with 10% blue (90/10) and 80% red with 20% blue (80/20). The PPFD at the plant leaf level was approx. 150 µmol m−2 s−1. The most favourable spectrum, 90/10, induced the longest inflorescences characterized by the highest stem diameter with simultaneously the highest number of florets. Additionally, blue light increased the anthocyanin content in the corolla by about 35%, compared with plants exposed to 100% red light and non-irradiated ones (control plants). This first study on the wavelength ratios is aimed to increase the production quality of Lachenalia and indicates the need for continuation.https://doi.org/10.2478/fhort-2019-0006anthocyaninsdry matterfloretsgrowth of inflorescence |
| spellingShingle | Wojciechowska Renata Hanus-Fajerska Ewa Kamińska Iwona Koźmińska Aleksandra Długosz-Grochowska Olga Kapczyńska Anna High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence Folia Horticulturae anthocyanins dry matter florets growth of inflorescence |
| title | High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence |
| title_full | High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence |
| title_fullStr | High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence |
| title_full_unstemmed | High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence |
| title_short | High ratio of red-to-blue LED light improves the quality of Lachenalia ‘Rupert’ inflorescence |
| title_sort | high ratio of red to blue led light improves the quality of lachenalia rupert inflorescence |
| topic | anthocyanins dry matter florets growth of inflorescence |
| url | https://doi.org/10.2478/fhort-2019-0006 |
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