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Title:Foliar application of silicon has little effect on hydroponically grown barley (Hordeum vulgare L.)
Authors:ID Mavrič Čermelj, Anja (Author)
ID Golob, Aleksandra (Author)
ID Kacjan Maršić, Nina (Author)
ID Germ, Mateja (Author)
Files:URL URL - Source URL, visit https://ojs.sazu.si/folia_bio_geo/article/view/8042
 
.pdf PDF - Presentation file, download (3,11 MB)
MD5: CC287FDAC7F0EA6F53043A1F356452F2
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo SAZU - Slovenian Academy of Sciences and Arts
Abstract:Silicon is an element widely distributed on the earth’s crust. It can ameliorate stress in plants grown in unfavorable conditions. Barley is an important cereal used as a staple food. In our experiment, barley was grown on a floating hydroponics system in a greenhouse. Plants were stabilized in pots containing rockwool. Half of the plants were sprayed with potassium silicate (0.25 ml 6% K2SiO3 L-1) every ten days for 35 days. The vitality of plants during their growth was monitored by measuring the potential photochemical efficiency of photosystem II. After 16 and 35 days of silicon application, shoot length, root length, and fresh and dry biomass were measured. At the end of the experiment, the number of leaves and shoots, specific leaf area, leaf optical properties, and lipid peroxidation were determined as well. The potential photochemical efficiency of photosystem II was close to 0.8 and unaffected by the addition of silicon, indicating a good condition of the plants. Results showed lower leaf reflectance for silicon-treated plants in UVA, UVB, and blue light wavelengths, possibly due to a layer of potassium silicate on leaves. After 16 days, silicon-treated plants’ fresh shoot weight and root length were higher than in control plants. Results showed that additional foliar application of silicon does not cause stress in the barley plant.
Keywords:potassium silicate, barley, Hordeum vulgare, hydroponics, foliar application, silicon
Publication status:Published
Publication version:Version of Record
Publication date:11.09.2023
Year of publishing:2023
Number of pages:381–388
Numbering:letn. 64, št. 2
PID:20.500.12556/DiRROS-25095 New window
UDC:582.546.12
ISSN on article:1855-7996
DOI:10.3986/fbg0105 New window
COBISS.SI-ID:161178371 New window
Publication date in DiRROS:09.01.2026
Views:58
Downloads:22
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Record is a part of a journal

Title:Folia biologica et geologica
Publisher:Slovenska akademija znanosti in umetnosti
ISSN:1855-7996
COBISS.SI-ID:248490496 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:Young Researcher Grant
Project number:54730

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0212
Name:Biologija rastlin

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J4-3091
Name:S spoznanji iz delovanja rastlin z učinkovitim privzemom mineralnih hranil do izboljšane preskrbe z minerali

Funder:Other - Other funder or multiple funders
Project number:BI-RS/20-21-008

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.

Secondary language

Language:Slovenian
Title:Foliarno dodajanje silicija ima malo učinka na hidroponsko gojen ječmen (Hordeum vulgare L.)
Abstract:Silicij je pogost element v zemljini skorji in lahko znižuje stres rastlin, ki rastejo v neugodnih razmerah. Ječmen je za ljudi pomembno žito, saj spada med osnovna živila. Poskus smo izvedli na plavajočem hidroponskem sistemu v rastlinjaku na Biotehniški fakulteti. Rastline so bile ukoreninjene v lončkih s kameno volno. Polovico rastlin smo škropili s kalijevim silikatom (0,25 ml 6% K2SiO3 L-1) vsakih deset dni. Med rastjo smo spremljali vitalnost rastlin z merjenjem potencialne fotokemične učinkovitosti fotosistema II. Po 16 in 35 dneh nanašanja Si, smo izmerili velikost poganjkov, dolžino korenin ter svežo in suho biomaso. Na koncu poskusa smo prešteli število listov in poganjkov, določili specifično listno površino, optične lastnosti listov in stopnjo lipidne peroksidacije. Potencialna fotokemična učinkovitost fotosistema II je bila v vseh tretmajih blizu 0,8, kar je nakazovalo na dobro stanje rastlin. Rezultati so pokazali nižjo odbojnost listov pri rastlinah, škropljenih s Si v UVA, UVB in modrem spektru valovnih dolžin, najverjetneje zaradi nastale plasti kalijevega silikata na listih. Po 16 dneh so imele s Si tretirane rastline večjo svežo maso poganjkov in daljše korenine kot rastline brez dodanega Si. Rezultati so pokazali, da škropljenje s silicijem ne povzroča stresa v ječmenu.
Keywords:kalijev silikat, ječmen, Hordeum vulgare, hidroponika, foliarni nanos, silicij


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