Naslov
Wheat proteins: Quantitative distribution under nitrogen fertilisation

Autori
Horvat, Daniela ; Šimić, Gordana ; Dvojković, Krešimir ; Ivić, Marko ; Plavšin, Ivana ; Novoselović, Dario

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of 10th International Congress "Flour-Bread 19 and 12th Croatian Congress of Cereal Technologists "Brašno-Kruh 19" / Jozinović, Antun ; Budžaki, Sandra ; Strelec, Ivica ; Lončarić, Ante - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2019, 68-68

Skup
10th International Congress Flour – Bread ’19 ; 12th Croatian Congress of Cereal Technologists Brašno – Kruh ’19

Mjesto i datum
Osijek, Hrvatska, 11.06.2019. - 14.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
wheat, cultivars, nitrogen, proteins, HPLC

Sažetak
Grain protein composition and content are crucial for wheat baking quality. It is common practice to use late nitrogen (N) application to increase grain protein content (P) of wheat. Whole flours of 8 wheat cultivars were characterised by the quantitative determination of total P and their main groups (albumins and globulins - AG, gliadins – GLI, and glutenins - GLU) using NIT (Infratec 1241) and HPLC procedures. The cultivars were grown at the Agricultural Institute Osijek during two seasons, at two levels of nitrogen (N) fertilisation. The total amount of the applied N was 77 kg ha-1 and 177 kg ha-1 of N, without and with top-dressing, in the 2017 season, and 102 kg ha -1 and 202 kg ha-1 of N in the 2018 season, respectively. On average, the P content under N supply was increased by 15.5% in 2017 and by 13.3% in 2018 (12.0% vs. 13.9% and 12.3% vs. 13.9, respectively). The proportion of AG in 2017 was increased in comparison to 2018. The GLI consistently increased in both years, unlike the GLU that decreased. On average, a significant increase in total P resulted in an increase in the GLI/GLU ratio (1.33 vs. 1.53) due to increased monomeric GLI synthesis after N fertilization. The extent of the N’s effects on proteins was strongly dependent on cultivars.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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