Prinos i mineralni sastav mladih izdanaka rotkvice uz primjenu različitog spektra LED osvjetljenja

master's thesis

• Title (english): Yield and mineral composition of radish microgreens under different spectra of LED lighting
• Author: Mihaela Pejić
• Mentor: Božidar Benko (mentor)
• Committee member: Božidar Benko (predsjednik povjerenstva)
• Committee member: Sanja Radman (član povjerenstva)
• Committee member: Marko Petek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Vegetable Crops); Zagreb
• Defense date and country: 2024-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Vertikalni uzgoj je tehnika uzgoja bilja u više razina, jedna iznad druge. Često uključuje
kontrolirane uvjete uzgoja, koji imaju za cilj optimizirati rast biljaka kao i primjenu
hidroponskih tehnika uzgoja. Ovom tehnikom se najčešće uzgajaju mladi izdanci, odnosno
biljčice u fazi razvijenih kotiledonskih listova u komorama za rast biljaka, uz primjenu
dopunskog osvjetljenja. Pokus je proveden u tri ponavljanja u klima komori uz temperaturu
od 25 °C i RVZ od 60 %. U ovom istraživanju korišteno je LED osvjetljenje s tri različita
spektra (plavi – 450 nm, crveni – 620 nm i kombinacija plavog i crvenog spektra 50:50) s
fotoperiodom u trajanju 14 sati. Laboratorijskom analizom utvrđen je prinos (kg/m2) i
mineralni sastav nakon različitih tretmana LED osvjetljenjem. U uzgoju mladih izdanaka
rotkvice uz primjenu različitog LED osvjetljenja nije zabilježena značajna promjena u
prinosu, količini suhe tvari i količini dušika. Plavo osvjetljenje značajno je povećalo
koncentracije kalija i magnezija, dok je crveno osvjetljenje pozitivno utjecalo na sve
mikroelemente osim cinka i makroelemente osim fosfora. Kombinirano LED osvjetljenje
povećalo je koncentraciju mikroelemenata i makroelemenata, osim dušika.

Abstract (english)

Vertical farming is a technique of growing plants on multiple levels, one above the other. It
often involves controlled growing conditions to optimize plant growth and the application of
hydroponic growing techniques. This method is used for growing microgreens, which are
plants at the stage of developed cotyledon leaves, in plant growth chambers using
supplemental lighting. The experiment was conducted in three repetitions in a climate
chamber with a temperature of 25 °C and a relative humidity of 60%. In this research, LED
lighting with three different spectra (blue – 450 nm, red – 620 nm, and a combination of blue
and red spectra 50:50) was used with a photoperiod lasting 14 hours. Laboratory analysis
determined the yield (kg/m²) and mineral composition after different LED lighting treatments.
Radish microgreens were produced under various LED lighting conditions, showing no
significant changes in yield, dry matter content, or nitrogen levels. Blue LED light
significantly increased potassium and magnesium concentrations, while red LED light
positively affected all micronutrients except zinc and all macronutrients except phosphorus.
Combined LED lighting increased the concentration of both micronutrients and
macronutrients, except for nitrogen.

• Keywords: Raphanus sativus var. longipinnatus; mladi izdanci; svjetlosni spektar; makroelementi; mikroelementi
• Keywords (english): Raphanus sativus var. longipinnatus; microgreens; light spectrum; macroelements; microelements
• Language: croatian
• URN:NBN: urn:nbn:hr:204:848177
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-10-22 08:48:53