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Metabolic response of 'Topaz' apple fruit to minimal application of nitrogen during cell enlargement stage
ID Jakopič, Jerneja (Avtor), ID Schmitzer, Valentina (Avtor), ID Veberič, Robert (Avtor), ID Smrke, Tina (Avtor), ID Štampar, Franci (Avtor)

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Izvleček
Nitrogen is an integral element of foliar sprays during apple fruit formation. However, in red cultivars, the application may have adverse effects on color in the second stage of fruit development. The effect of a low-dose foliar application of urea was monitored on ‘Topaz’ apple pomometric (fruit mass, firmness, total solids, starch content, skin color) and biochemical traits (primary metabolites, phenolic compounds, and assimilatory pigments). Three applications (17 July, 27 July, and 18 August) of two different urea doses (N1 = 1.4 kg N ha$^{−1}$; N4 = 4 kg N ha$^{−1}$) and control (N0, only sprayed with water) were used. Low doses of urea did not affect flesh firmness, total soluble, solid, and starch content, but individual fruit mass was significantly higher in N1 treatment compared to the other two treatments. Significantly lower a* parameters and a lower content of anthocyanins were measured on apples subject to N4 treatment. Many secondary metabolites (phenolic acids, flavan-3-ols, flavonols, and chalcones) were also negatively affected by low-dose urea application. Conversely, urea treatments significantly increased total assimilatory pigments in apple skin. Even minor levels of nitrogen, applied directly on the leaf at later stages of red apple fruit development, negatively altered color traits and the composition of metabolites.

Jezik:Angleški jezik
Ključne besede:Malus domestica, foliar urea, sugars, organic acids, phenolics, anthocyanins, assimilatory pigments
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2021
Št. strani:10 str.
Številčenje:Vol. 7, iss. 9, art. 266
PID:20.500.12556/RUL-136038 Povezava se odpre v novem oknu
UDK:634.1/.7
ISSN pri članku:2311-7524
DOI:10.3390/horticulturae7090266 Povezava se odpre v novem oknu
COBISS.SI-ID:77559811 Povezava se odpre v novem oknu
Datum objave v RUL:08.04.2022
Število ogledov:499
Število prenosov:124
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Horticulturae
Skrajšan naslov:Horticulturae
Založnik:MDPI
ISSN:2311-7524
COBISS.SI-ID:526326297 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:01.09.2021

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:jablana, Malus domestica, topaz, foliarno gnojenje, urea, sekundarni metaboliti, dušična gnojila, sladkorji, kemična sestava, fenolne spojine, pigmenti

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0013
Naslov:Hortikultura

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