Primjena cinkovih formulacija mikroalgi (Chlorella) u uzgoju borovnica

master's thesis

• Title (english): Application of zinc formulations with microalgae in blueberry cultivation
• Author: Marija Kovar
• Mentor: Marko Vinceković (mentor)
• Committee member: Marko Vinceković (predsjednik povjerenstva)
• Committee member: Boris Duralija (član povjerenstva)
• Committee member: Luna Maslov Bandić (član povjerenstva)
• Committee member: Slaven Jurić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Chemistry); Zagreb
• Defense date and country: 2022-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Američka borovnica (Vaccinium corymbosum L.) je višegodišnja voćna vrsta i sve popularnija
namirnica zbog dobrih nutritivnih svojstava. Tijekom uzgoja potrebno je voditi računa o
kvalitetnoj prihrani, zaštiti i agrotehničkim mjerama. Cilj uzgoja je maksimalno plodonošenje
i dobra kvaliteta ploda s većom količinom sekundarnih biljnih metabolita. To se može postići
primjenom novih tipova agroekoloških biopolimernih formulacija. U svrhu ovog diplomskog
rada pripravljene su biopolimerne formulacije ispunjene mikroalgom i kemijskim reagensom;
cinkovim sulfatom ZnSO4 x 7H2O te su folijarno primijenjene na borovnicu.
Pokus je postavljen u nasadu borovnice tvrtke Fragaria d.o.o. u mjestu Velika Ludina, 2021.
godine, prema metodi SBR u četiri ponavljanja. Tretirane su dvije sorte borovnica 'Duke' i
'Aurora'. Primijenjena su četiri tretmana: 1. kontrola – destilirana voda; 2. 10 %-tna otopina
mikroalgi; 3. biopolimerne formulacije otopine cinkovog sulfata; 4. biopolimerne formulacije
otopine mikroalgi. Dospjeli plodovi su podvrgnuti fizikalnim i kemijskim analizama (masa, pH
vrijednost, topiva suha tvar, ukupne kiseline polifenoli, antocijani i flavonoidi). Kod plodova
sorte 'Aurora' tretiranih biopolimernim formulacijama mikrokapsula s cinkom i biopolimernim
formulacijama mikrokapsula s mikroalgama primijećene su povećane količine polifenola,
flavonoida i antocijana (mikrokapsule s cinkom: polifenoli 299,20 mg/100 g, flavonoidi 218,75
mg/100 g, antocijani 88,15 mg/100 g i mikrokapsule s algama: polifenoli 315,91 mg/100 g,
flavonoidi 225,75 mg/100 g, antocijani 93,52 mg/100 g).

Abstract (english)

American blueberry (Vaccinium corymbosum L.) is a perennial fruit specie with good
nutritional properties. During cultivation, it is necessary to take care of good quality
fertilization, protection and agrotechnical measures. Main purpose of fruit production is to
achieve maximum fruiting with high amount of secondary plant metabolites. It may be achieved
by applying new types of agroecological biopolymer formulations. For this thesis were prepared
biopolymer formulations filled with microalgae and a chemical reagent; zinc sulfate ZnSO4 x
7H2O. Biopolymer formulations were foliarly applied on blueberry plants.
Experiment was conducted with blueberry (varieties Duke and Aurora) on field of Fragaria
company near town Velika Ludina, in 2021. The experiment was set up according to the RCBD
in four replications. Top-dressing was applied in four different variants: 1. control – distilled
water; 2. 10% microalgae solution; 3. Biopolymer formulations of zinc sulfate solution; 4.
biopolymer formulations solution of microalgae. Ripe fruits were studied of pomological and
chemical properties (fruit weight, pH value, soluble solids and total acids content polyphenols,
flavonoids and anthocyanins). Increased amounts of polyphenols, flavonoids and anthocyanins
were observed in the fruits of the cultivar 'Aurora' treated with biopolymer formulations of
microcapsules with zinc and biopolymer formulations of microcapsules with microalgae
(microcapsules with zinc: polyphenols 299.20 mg/100 g, flavonoids 218.75 mg/100 g,
anthocyanins 88.15 mg/100 g and microcapsules with algae: polyphenols 315.91 mg/100 g,
flavonoids 225.75 mg/100 g, anthocyanins 93.52 mg/100 g).

• Keywords: borovnica; mikroalge; mikrokapsule; cink; folijarna prihrana
• Keywords (english): blueberry; microalgae; microcapsules; zinc; foliar fertilization
• Language: croatian
• URN:NBN: urn:nbn:hr:204:459700
• 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: 2022-11-03 09:47:40