Growth Stage Specific Lighting Spectra Affect Photosynthetic Performance, Growth and Mineral Element Contents in Tomato
| Autor: | Algirdas Kazlauskas, Giedrė Samuolienė, Akvilė Viršilė, Jurga Miliauskienė |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Photosynthesis 01 natural sciences Spectral line law.invention 03 medical and health sciences law lighting spectra 030304 developmental biology growths stages 0303 health sciences Controlled environment chamber photosynthesis biology Chemistry Solanum lycopersicum Far-red Agriculture biology.organism_classification microlements macroelements Horticulture Seedling Yield (chemistry) crop modeling Solanum Agronomy and Crop Science 010606 plant biology & botany Light-emitting diode |
| Zdroj: | Agronomy Volume 11 Issue 5 Agronomy, Vol 11, Iss 901, p 901 (2021) |
| ISSN: | 2073-4395 |
| DOI: | 10.3390/agronomy11050901 |
| Popis: | The aim of study was to evaluate if the alternation in growth stage–specific lighting spectrum would be superior for tomato growth, photosynthesis, and mineral element contents compared to constant spectrum lighting. Dwarf tomato (Solanum lycopersicum L. cv. Micro Tom) was cultivated in controlled environment chamber (23/19 °C) under light emitting diode lighting. Three lighting spectrum treatments were set, optimized for different tomato growth stages: “seedling” (S blue (B, 447 nm), red (R, 660 nm) and far red (FR, 740 nm) light), “growth” (G R, B and FR light, supplemented with 523 nm green) and fruiting (F R, B, FR light supplemented with 385 nm ultraviolet A (UV-A)). The total photon flux density of 250 μmol m−2·s−1 was maintained in all treatments. Three lighting spectrums were alternated in seedling (S, G, F), biomass growth (SS, SG, GG, FF) and fruiting (SSS, SGG, GGG, GGF, FFF, SGF) stages of tomato creating growth stage-specific or constant lighting spectrum strategies. The light effects depended on tomato age, however the alternation in growth stage-specific lighting spectrum did not have a pronounced impact on dwarf tomato photosynthetic indices, growth, yield and mineral element content. The investigated parameters mainly depended on the spectrum of the latter growth stage. |
| Databáze: | OpenAIRE |
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