Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis
The effects of LEDs (Light-Emitting Diodes) emitting different colours namely red, blue, red and blue, and white lights on vegetative growth and fl ower initiation of Phalaenopsis have been evaluated. Phalaenopsis“otohine/taisuco fi re bird” seedlings in vitro were subjected to different light quali...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Gadjah Mada, Yogyakarta
2014-06-01
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| Series: | Indonesian Journal of Biotechnology |
| Subjects: | |
| Online Access: | https://jurnal.ugm.ac.id/ijbiotech/article/view/8632 |
| _version_ | 1818322869236531200 |
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| author | Kumala Dewi Yekti Asih Purwestri Yohana Theresia Maria Astuti Lila Natasaputra P. Parmi |
| author_facet | Kumala Dewi Yekti Asih Purwestri Yohana Theresia Maria Astuti Lila Natasaputra P. Parmi |
| author_sort | Kumala Dewi |
| collection | DOAJ |
| description | The effects of LEDs (Light-Emitting Diodes) emitting different colours namely red, blue, red and
blue, and white lights on vegetative growth and fl ower initiation of Phalaenopsis have been evaluated.
Phalaenopsis“otohine/taisuco fi re bird” seedlings in vitro were subjected to different light qualities for either
2 or 4 weeks, and then each seedling was planted in a plastic pot containing sphagnum and grown in the
growth chamber under similar light quality for 3 months. For fl ower induction, mature Phalaenopsis plants
having 4 – 6 leaves were grown for 3 months in the growth chamber under different light qualities. The leaf
span, chlorophyll, gibberellin and cytokinin content were determined. In addition, the expressions of FT-like
gene in the leaf, axillary bud, fl ower bud and stalk were examined.
Vegetative growth was enhanced under blue, red-blue or white LEDs compared to that of the control.
Gibberellin and cytokinin content increased in the seedlings subjected to white LEDs. Based on the average
of leaf span increment it was suggested that the growth of Phalaenopsis seedlings can be promoted by giving
either blue, red-blue or white LEDs. From the second experiment, it was found that fl ower induction in
Phalaenopsis can be obtained in plants that had just fi nished fl owering without the application of LEDs. The
expression of FT-like gene in the leaf as well as fl ower bud and stalk suggests that this gene is involved in
fl ower regulation of Phalaenopsis. |
| first_indexed | 2024-12-13T11:03:39Z |
| format | Article |
| id | doaj.art-6c94baede78a46608da1d7cc2f5350fd |
| institution | Directory Open Access Journal |
| issn | 0853-8654 2089-2241 |
| language | English |
| last_indexed | 2024-12-13T11:03:39Z |
| publishDate | 2014-06-01 |
| publisher | Universitas Gadjah Mada, Yogyakarta |
| record_format | Article |
| series | Indonesian Journal of Biotechnology |
| spelling | doaj.art-6c94baede78a46608da1d7cc2f5350fd2022-12-21T23:49:09ZengUniversitas Gadjah Mada, YogyakartaIndonesian Journal of Biotechnology0853-86542089-22412014-06-01191334210.22146/ijbiotech.86327163Effects of Light Quality on Vegetative Growth and Flower Initiation in PhalaenopsisKumala Dewi0Yekti Asih Purwestri1Yohana Theresia Maria Astuti2Lila NatasaputraP. Parmi3Universitas Gadjah MadaUniversitas Gadjah MadaInstiperUniversitas Gadjah MadaThe effects of LEDs (Light-Emitting Diodes) emitting different colours namely red, blue, red and blue, and white lights on vegetative growth and fl ower initiation of Phalaenopsis have been evaluated. Phalaenopsis“otohine/taisuco fi re bird” seedlings in vitro were subjected to different light qualities for either 2 or 4 weeks, and then each seedling was planted in a plastic pot containing sphagnum and grown in the growth chamber under similar light quality for 3 months. For fl ower induction, mature Phalaenopsis plants having 4 – 6 leaves were grown for 3 months in the growth chamber under different light qualities. The leaf span, chlorophyll, gibberellin and cytokinin content were determined. In addition, the expressions of FT-like gene in the leaf, axillary bud, fl ower bud and stalk were examined. Vegetative growth was enhanced under blue, red-blue or white LEDs compared to that of the control. Gibberellin and cytokinin content increased in the seedlings subjected to white LEDs. Based on the average of leaf span increment it was suggested that the growth of Phalaenopsis seedlings can be promoted by giving either blue, red-blue or white LEDs. From the second experiment, it was found that fl ower induction in Phalaenopsis can be obtained in plants that had just fi nished fl owering without the application of LEDs. The expression of FT-like gene in the leaf as well as fl ower bud and stalk suggests that this gene is involved in fl ower regulation of Phalaenopsis.https://jurnal.ugm.ac.id/ijbiotech/article/view/8632Light Emitting Diodes (LEDs)Phalaenopsisgibberellincytokinin |
| spellingShingle | Kumala Dewi Yekti Asih Purwestri Yohana Theresia Maria Astuti Lila Natasaputra P. Parmi Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis Indonesian Journal of Biotechnology Light Emitting Diodes (LEDs) Phalaenopsis gibberellin cytokinin |
| title | Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis |
| title_full | Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis |
| title_fullStr | Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis |
| title_full_unstemmed | Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis |
| title_short | Effects of Light Quality on Vegetative Growth and Flower Initiation in Phalaenopsis |
| title_sort | effects of light quality on vegetative growth and flower initiation in phalaenopsis |
| topic | Light Emitting Diodes (LEDs) Phalaenopsis gibberellin cytokinin |
| url | https://jurnal.ugm.ac.id/ijbiotech/article/view/8632 |
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