Količina magnezija u plodu paprike pri folijarnoj primjeni kalcijevih poboljšivača

master's thesis

• Title (english): Magnesium content of sweet pepper fruits according to application of calcium amendments
• Author: Klara Pervan
• Mentor: Marko Petek (mentor)
• Committee member: Marko Petek (predsjednik povjerenstva)
• Committee member: Klaudija Carović-Stanko (član povjerenstva)
• Committee member: Sanja Radman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Plant Nutrition); Zagreb
• Defense date and country: 2021-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Magnezij i kalcij esencijalna su biljna hraniva iz grupe makroelemenata koji pri određenim
uvjetima u tlu mogu imati antagonistički odnos. Primarna funkcija kalcija kod biljaka je
strukturna, a magnezij je sastavni dio klorofila. Iako se kalcij najčešće prirodno nalazi u tlu u
dovoljnim količinama i ne zahtijeva dodatan unos putem gnojiva, katkad je potrebno provoditi
folijarnu prihranu, osobito plodovitog povrća poput paprike. Pri njegovom nedostatku plodovi
gube na vizualnoj i... More nutritivnoj kvaliteti. Naravno, folijarna prihrana jednim elementom utječe i
na količinu usvojenih ostalih elemenata (npr. magnezija), a time i na ukupni mineralni sastav
ploda paprike. Cilj ovog rada je utvrditi utjecaj folijarnih kalcijevih materijala na količinu
magnezija u mesu ploda paprike. Poljski gnojidbeni pokus po metodi slučajnog bloknog
rasporeda u 3 ponavljanja proveden je s dva kultivara paprike (Capsicum annuum L.) (babura
– 'Šorokšari' i rog – 'Kurtovska kapija'). Pokus je uključivao 4 folijarna tretmana gnojidbe
kalcijevim poboljšivačima rasta (kontrola – primjena samo vode, Ecogreen 3 g/L –niža
koncentracija, Ecogreen 5 g /L – viša koncentracija i Zeogreen+P 5 g/L). Rezultati pokazuju da
je kod sorte 'Kurtovska kapija' utvrđen viši udio suhe tvari kod tretiranih paprika u odnosu na
kontrolu, dok kod sorte 'Šorokšari' ta razlika nije uočena. Zatim je utvrđen pozitivan učinak
tretmana na količinu magnezija u suhoj tvari ploda paprike kod sorte 'Šorokšari', a negativan
kod sorte 'Kurtovska kapija' u odnosu na kontrolni tretman. Uz to, kod obje sorte uočen je
pozitivan učinak tretmana na količinu magnezija u svježoj tvari paprike. Less

Abstract (english)

Magnesium and calcium are essential plant macroelements that in some cases can have
antagonistic relation in soil. Calcium primary has structural role in plants, while magnesium is
a part of chlorophyll. Although calcium can naturally be found in soil in respected amounts and
it is not necessary to use fertilizers containing calcium, sometimes it is better to perform foliar
nutrition, particularly in case of fruit vegetables, such as bell pepper. Calcium deficiency leads
to... More poor visual and nutritive quality of the fruit. Foliar nutrition also affects uptake of other
macroelements like magnesium and and thus to the total mineral composition of the bell pepper
fruit. Goal in this paper is to determine the effect of foliar nutrition containing calcium on
magnesium content in bell pepper fruits. Field fertilization experiment by the method of
Random block design in 3 replications was carried out with two cultivars of bell pepper
(Capsicum annuum L.) ('Šorokšari' and 'Kurtovska kapija'). The experiment included 4 foliar
fertilization treatments with calcium biostimulants (control - application of water only,
Ecogreen 3 g/L - lower concentration, Ecogreen 5 g/L - higher concentration and Zeogreen + P
5 g/L). Results show that in case of 'Kurtovska kapija' cultivar higher dry matter content was
determined compared to control tretament, while in case of 'Šorokšari' cultivar no difference
was determined. Further, positive effect of the treatment was obtained in bell pepper
magnesium dry matter content in 'Šorokšari' cultivar and negative effect in 'Kurtovska kapija'
cultivar compared to control treatment. In both cultivars positive the effect of treatment on bell
pepper magnesium fresh matter content was observed. Less

• Keywords: Capsicum annuum; biljna hraniva; kvaliteta plodova paprike; minerali
• Keywords (english): Capsicum annuum; plant nutrition; quality of pepper fruits; minerals
• Language: croatian
• URN:NBN: urn:nbn:hr:204:017809
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologije (magistar/ magistra inženjer/inženjerka agroekologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2022-11-24
• Created on: 2021-11-24 07:37:02