THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS
In two successive pot experiments with lettuce cv. ‘Królowa Majowych’, conducted in a phytotron, this study investigated the effect of cool white fluorescent light (FRS) at a PPFD 200 μmol·m-2·s-1 and red-blue LED light at a PPFD of 200 and 800 μmol·m-2·s-1 on photosynthesis, yield, leaf area, SLA,...
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| Format: | Article |
| Language: | English |
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University of Life Sciences in Lublin - Publishing House
2014-10-01
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| Series: | Acta Scientiarum Polonorum: Hortorum Cultus |
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| Online Access: | https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2808 |
| _version_ | 1797393995886755840 |
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| author | Edward Borowski Barbara Hawrylak-Nowak Sławomir Michałek |
| author_facet | Edward Borowski Barbara Hawrylak-Nowak Sławomir Michałek |
| author_sort | Edward Borowski |
| collection | DOAJ |
| description |
In two successive pot experiments with lettuce cv. ‘Królowa Majowych’, conducted in a phytotron, this study investigated the effect of cool white fluorescent light
(FRS) at a PPFD 200 μmol·m-2·s-1 and red-blue LED light at a PPFD of 200 and 800 μmol·m-2·s-1 on photosynthesis, yield, leaf area, SLA, and the content of photosynthetic pigments, total N and nitrates. Experimental plants were grown in sphagnum peat supplemented with full-strength Hoagland’s solution at the beginning of the experiment. 10 days after plants were pricked out, 4 experimental series were made which differed in the form of N supplied to the growing medium at a rate of 420 mg (2N): 1) Hoagland’s solution (control); 2) Hoagl + 2N-NO3; 3) Hoagl + 2N-NH4; 4) Hoagl + 2N-NH4/NO3. The obtained results showed that the lettuce leaf yield under FRS light was distinctly higher than under LED light at a PPFD of 200, and in particular at 800 μmol·m-2·s-1. Besides, the leaves grown under FRS light showed a significantly thinner leaf blade (SLA) and a lower content of photosynthetic pigments, total N and nitrates. The photosynthetic
rate was higher under LED light relative to FRS light. Different nutrition of plants with N-NO3, N-NH4 and N-NH4/NO3 had a similar effect on the yield and analysed traits of lettuce leaves, regardless of the type of light and the level of irradiation with LED light. LED lamps seem to be a very promising light source for plants, but they require further research on how to adapt the spectral distribution of light to their requirements.
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| first_indexed | 2024-03-09T00:13:01Z |
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| id | doaj.art-4fe8c9307354411ebfa2e4d84ee94d70 |
| institution | Directory Open Access Journal |
| issn | 1644-0692 2545-1405 |
| language | English |
| last_indexed | 2024-03-09T00:13:01Z |
| publishDate | 2014-10-01 |
| publisher | University of Life Sciences in Lublin - Publishing House |
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| series | Acta Scientiarum Polonorum: Hortorum Cultus |
| spelling | doaj.art-4fe8c9307354411ebfa2e4d84ee94d702023-12-12T09:48:23ZengUniversity of Life Sciences in Lublin - Publishing HouseActa Scientiarum Polonorum: Hortorum Cultus1644-06922545-14052014-10-01135THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTSEdward BorowskiBarbara Hawrylak-NowakSławomir Michałek In two successive pot experiments with lettuce cv. ‘Królowa Majowych’, conducted in a phytotron, this study investigated the effect of cool white fluorescent light (FRS) at a PPFD 200 μmol·m-2·s-1 and red-blue LED light at a PPFD of 200 and 800 μmol·m-2·s-1 on photosynthesis, yield, leaf area, SLA, and the content of photosynthetic pigments, total N and nitrates. Experimental plants were grown in sphagnum peat supplemented with full-strength Hoagland’s solution at the beginning of the experiment. 10 days after plants were pricked out, 4 experimental series were made which differed in the form of N supplied to the growing medium at a rate of 420 mg (2N): 1) Hoagland’s solution (control); 2) Hoagl + 2N-NO3; 3) Hoagl + 2N-NH4; 4) Hoagl + 2N-NH4/NO3. The obtained results showed that the lettuce leaf yield under FRS light was distinctly higher than under LED light at a PPFD of 200, and in particular at 800 μmol·m-2·s-1. Besides, the leaves grown under FRS light showed a significantly thinner leaf blade (SLA) and a lower content of photosynthetic pigments, total N and nitrates. The photosynthetic rate was higher under LED light relative to FRS light. Different nutrition of plants with N-NO3, N-NH4 and N-NH4/NO3 had a similar effect on the yield and analysed traits of lettuce leaves, regardless of the type of light and the level of irradiation with LED light. LED lamps seem to be a very promising light source for plants, but they require further research on how to adapt the spectral distribution of light to their requirements. https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2808spectral compositionLactuca sativayieldleaf areaSLAphotosynthetic pigments |
| spellingShingle | Edward Borowski Barbara Hawrylak-Nowak Sławomir Michałek THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS Acta Scientiarum Polonorum: Hortorum Cultus spectral composition Lactuca sativa yield leaf area SLA photosynthetic pigments |
| title | THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS |
| title_full | THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS |
| title_fullStr | THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS |
| title_full_unstemmed | THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS |
| title_short | THE RESPONSE OF LETTUCE TO FLUORESCENT LIGHT AND LED LIGHT RELATIVE TO DIFFERENT NITROGEN NUTRITION OF PLANTS |
| title_sort | response of lettuce to fluorescent light and led light relative to different nitrogen nutrition of plants |
| topic | spectral composition Lactuca sativa yield leaf area SLA photosynthetic pigments |
| url | https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2808 |
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