The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions
We investigated the growth traits, flower bud formation, photosynthetic performance, and powdery mildew development in miniature <i>Rosa</i> × <i>hybrida</i> ‘Aga’ plants grown in the greenhouse under different light-emitting diode (LED) light spectra. Fluorescence-based sens...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/2/417 |
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| author | Bożena Matysiak |
| author_facet | Bożena Matysiak |
| author_sort | Bożena Matysiak |
| collection | DOAJ |
| description | We investigated the growth traits, flower bud formation, photosynthetic performance, and powdery mildew development in miniature <i>Rosa</i> × <i>hybrida</i> ‘Aga’ plants grown in the greenhouse under different light-emitting diode (LED) light spectra. Fluorescence-based sensors that detect the maximum photochemical efficiency of photosystem II (PS II) as well as chlorophyll and flavonol indices were used in this study. Five different LED light treatments as a supplement to natural sunlight with red (R), blue (B), white (W), RBW+FR (far-red) (high R:FR), and RBW+FR (low R:FR) were used. Control plants were illuminated only by natural sunlight. Plants were grown under different spectra of LED lighting and the same photosynthetic photon flux density (PPFD) (200 µmol m<sup>−2</sup> s<sup>−1</sup>) at a photoperiod of 18 h. Plants grown under both RBW+FR lights were the highest, and had the greatest total shoot length, irrespective of R:FR. These plants also showed the highest maximum quantum yield of PS II (average 0.805) among the light treatments. Red monochromatic light and RBW+FR at high R:FR stimulated flower bud formation. Moreover, plants grown under red LEDs were more resistant to <i>Podosphaera pannosa</i> than those grown under other light treatments. The increased flavonol index in plants exposed to monochromatic blue light, compared to the W and control plants, did not inhibit powdery mildew development. |
| first_indexed | 2024-03-09T00:35:49Z |
| format | Article |
| id | doaj.art-bf7f5278f83e45b7822bddc108da1f38 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T00:35:49Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-bf7f5278f83e45b7822bddc108da1f382023-12-11T18:11:02ZengMDPI AGPlants2223-77472021-02-0110241710.3390/plants10020417The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse ConditionsBożena Matysiak0The National Institute of Horticultural Research, Department of Applied Biology, 96-100 Skierniewice, PolandWe investigated the growth traits, flower bud formation, photosynthetic performance, and powdery mildew development in miniature <i>Rosa</i> × <i>hybrida</i> ‘Aga’ plants grown in the greenhouse under different light-emitting diode (LED) light spectra. Fluorescence-based sensors that detect the maximum photochemical efficiency of photosystem II (PS II) as well as chlorophyll and flavonol indices were used in this study. Five different LED light treatments as a supplement to natural sunlight with red (R), blue (B), white (W), RBW+FR (far-red) (high R:FR), and RBW+FR (low R:FR) were used. Control plants were illuminated only by natural sunlight. Plants were grown under different spectra of LED lighting and the same photosynthetic photon flux density (PPFD) (200 µmol m<sup>−2</sup> s<sup>−1</sup>) at a photoperiod of 18 h. Plants grown under both RBW+FR lights were the highest, and had the greatest total shoot length, irrespective of R:FR. These plants also showed the highest maximum quantum yield of PS II (average 0.805) among the light treatments. Red monochromatic light and RBW+FR at high R:FR stimulated flower bud formation. Moreover, plants grown under red LEDs were more resistant to <i>Podosphaera pannosa</i> than those grown under other light treatments. The increased flavonol index in plants exposed to monochromatic blue light, compared to the W and control plants, did not inhibit powdery mildew development.https://www.mdpi.com/2223-7747/10/2/417chlorophyll <i>a</i> fluorescenceflavonolsspectral light qualitynitrogen balance indexmorphological traits |
| spellingShingle | Bożena Matysiak The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions Plants chlorophyll <i>a</i> fluorescence flavonols spectral light quality nitrogen balance index morphological traits |
| title | The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions |
| title_full | The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions |
| title_fullStr | The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions |
| title_full_unstemmed | The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions |
| title_short | The Effect of Supplementary LED Lighting on the Morphological and Physiological Traits of Miniature <i>Rosa</i> × <i>Hybrida</i> ‘Aga’ and the Development of Powdery Mildew (<i>Podosphaera pannosa</i>) under Greenhouse Conditions |
| title_sort | effect of supplementary led lighting on the morphological and physiological traits of miniature i rosa i i hybrida i aga and the development of powdery mildew i podosphaera pannosa i under greenhouse conditions |
| topic | chlorophyll <i>a</i> fluorescence flavonols spectral light quality nitrogen balance index morphological traits |
| url | https://www.mdpi.com/2223-7747/10/2/417 |
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